Portmarnock

420 registered freehold parcels lie mostly in Portmarnock, from 4 m² to 220,568 m² (22.06 ha, 54.5 acres). The dashed line is the townland's boundary; 42 neighbouring parcels touch it.

Download the townland: DXF, in Irish Transverse Mercator metres, with its boundary, parcels and buildings; GeoJSON or KML.

• R2RS - Residential (Existing residential)
  The Fingal Development Plan 2023 – 2029, Fingal · 408 parcels The zoning objective in the plan
• G3GB - Green Belt (Conservation, amenity or buffer space, corridor/belt, landscape)
  The Fingal Development Plan 2023 – 2029, Fingal · 29 parcels The zoning objective in the plan
• R1RA - Residential Area (New/proposed residential)
  The Fingal Development Plan 2023 – 2029, Fingal · 9 parcels The zoning objective in the plan
• G4OS - Open Space (Active open space)
  The Fingal Development Plan 2023 – 2029, Fingal · 5 parcels The zoning objective in the plan
• G3HA - High Amenity (Conservation, amenity or buffer space, corridor/belt, landscape)
  The Fingal Development Plan 2023 – 2029, Fingal · 5 parcels The zoning objective in the plan

Source: Tailte Éireann and the Department of Housing (MyPlan), national zoning, CC BY 4.0.

• 20 Aug 2026Referral

  The development will consist of: 1.) a part single-storey, part two-st

  Permission · Fingal County Council, F26A/0758E

• 23 Jun 2026Refuse permission & refuse retention

  The Retention Permission will be for retention of the conversion of th

  Permission and retention · Fingal County Council, F26A/0542

• 3 Jun 2026Invalid application

  The permission will be for retention of the conversion of the existing

  Retention · Fingal County Council, F26A/0467

• 14 Jan 2026Refuse permission

  Planning Permission for the following:- (i) Construction of one new (9

  Permission · Fingal County Council, F26A/0012E

• 12 Jan 2026Grant permission

  Planning permission sought to convert attic space to habilable

  Permission · Fingal County Council, F26A/0010E

• 28 Nov 2025Grant permission

  Permission for, A. Change of roof profile from full hip

  Permission · Fingal County Council, F25A/1102

• 14 Nov 2025Grant permission

  Permission is sought for conversion of his attic to non-habitable

  Permission · Fingal County Council, F25A/1065E

• 6 Nov 2025Grant permission

  Planning permission is sought for: Conversion of existing attic to st

  Permission · Fingal County Council, F25A/1025E

• 16 Oct 2025Grant permission

  Planning permission is sought for attic conversion with dormer window

  Permission · Fingal County Council, F25A/0954E

• 12 Oct 2025Grant permission

  Planning permission is sought for: Conversion of existing attic to st

  Permission · Fingal County Council, F25A/0937E

• 22 Sept 2025Grant permission

  The proposed development comprises minor modifications to in-curtilage

  Lrd application · Fingal County Council, LRD0077/S3E

• 29 Aug 2025Grant permission

  The development will consist of the construction of a dormer window in

  Permission · Fingal County Council, F25A/0791E

• 29 Aug 2025Grant permission

  Planning Permission for alterations to condition 5(b) of already appro

  Permission · Fingal County Council, F25A/0789E

• 27 Aug 2025Refuse permission

  Alterations to already approved development Reg. Ref. F24A/0781E, ABP-

  Permission · Fingal County Council, F25A/0785E

• 27 Aug 2025Invalid application

  Alterations to condition 5(b) of already approved development, Reg. Re

  Permission · Fingal County Council, F25A/0784E

• 22 Jul 2025Grant permission

  The development proposed (Phase 1F) will consist of: - 296no. resident

  Lrd application · Fingal County Council, LRD0058/S3E

• 21 May 2025Grant permission

  Planning Permission for three two storey four bedroom homes of 175m2,

  Permission · Fingal County Council, F25A/0448E

• 15 May 2025Invalid application

  Mark Beggs seeks Planning Permission for three two storey four bedroom

  Permission · Fingal County Council, F25A/0425E

• 6 May 2025Invalid application

  Mark Beggs seeks Planning Permission for three two storey four bedroom

  Permission · Fingal County Council, F25A/0388E

• 24 Apr 2025Grant permission

  Planning permission for attic conversion as non habitable storage spac

  Permission · Fingal County Council, F25A/0347E

• 15 Apr 2025Grant permission

  The development will consist of:Planning permission for Revisions to A

  Permission · Fingal County Council, F25A/0320E

• 26 Mar 2025Invalid application

  The development will consist of:Planning permission for Revisions to A

  Permission · Fingal County Council, F25A/0256E

• 5 Feb 2025Withdraw application

  Retention Permission for material change of use and alterations to a f

  Retention · Fingal County Council, F25A/0092E

• 28 Nov 2024Grant permission

  Proposed alterations to previously approved planning permission F22B/0

  Permission · Fingal County Council, F24A/1066E

• 1 Nov 2024Grant permission

  Change of use from retail use to use as veterinary clinic, internal l

  Permission · Fingal County Council, F24A/0968E

The 25 most recent of over 100 applications.

Source: National Planning Applications, Department of Housing, Local Government and Heritage, CC BY 4.0. Applicants are not shown.

Designated sites

• Proposed Natural Heritage Area: Sluice River Marsh 001763

Recorded monuments

• DU015-014 Mound
  Description

  This flat-topped mound is located on a slight rise and enjoys extensive views of the coast but restricted views to the north. The mound is oval in plan (dims. 27m N-S; 14m E-W; H 3.5m). Morris (1939, 182-3) has associated this site with the burying place of 'Maine' 'son of Medb and Ailill' which is mentioned in the Metrical Dindsenchus. Originally the monument may have been considerably larger as according to a local landowner it was severely damaged in the early 1970s when an attempt was made to level it during field clearance works. In 2007 vegetation was removed and a topographical survey of the mound undertaken. Two test-trenches were hand-excavated (Licence no. 07E0754) into the eastern side of the mound and revealed the mound had been severely disturbed by modern activity. Intact mound deposits did survive and comprised dumped clay that contained infrequent pieces of shell and charcoal as well as occasional sherds of medieval pottery, suggesting that the mound may in fact be medieval in date and may be associated with the medieval village to the north-east (Moriarty 2008:477 www.excavations.ie). test excavation south of the mound identified an oval enclosure, the possible bailey associated with the mound. A landscaping plan was developed for the mound's preservation in open space but the development has yet to take place. In 2016 archaeological excavation by Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd under licence No. 16E0613 was carried out on the cropmark site (DU015-014001-) to the SE of the mound and the results were sumarised as follows; 'A residential development has been completed where the monument stood. The northern portion of the monument is preserved in situ within a 20m buffer zone around mound DU015-014----, which has been developed as a green space with play area and information signage. The majority of the monument has been removed under excavation licence 16E0613 in advance of development. The line of the enclosure ditch where it is preserved below ground within the buffer zone around mound DU015-014----, is delineated by hard and soft landscaping. The site was visible on aerial photography and was tested (07E0574, Moriarty). Further testing was carried out during the excavation of an adjacent enclosure (16E0101, McLoughlin) and with the exception of the portion preserved in situ with the buffer zone for the mound, full excavation was carried out under licence ref 16E0613. Carried out pre-planning. The Phase 1B (Area 3) enclosure site has now been backfilled and built upon. The northern portion of the enclosure within the 20m buffer zone area surrounding the upstanding mound (DU015‐014---) remains in situ and will be incorporated into the landscaping plans for the mound. These works will be archaeologically monitored. In 2000 a programme of archaeological investigation under licence No. 00E0732 was carried out to determine the extent of archaeological remains in advance of a planning application for development on lands owned by Sherman Oaks Ltd. Testing was carried out around known monument DU015‐014----, and comprised five test‐trenches excavated 20m from the base of the Portmarnock mound (DU015‐014----) to establish a suitable buffer zone around this monument. No archaeological finds or features were revealed in test‐trenches 1–4. Trench 5 was specifically placed to test the location of a possible enclosure indicated on aerial photography. A small portion of a ditch‐type feature was uncovered 50m south‐east of the mound in trench 5. This feature measured 1.9m wide and 0.32m deep and contained occasional flecks of charcoal, small fragments of bone and fragments of shell. Further investigation was recommended to establish if this feature was of archaeological significance, however this feature did not appear to correspond with the enclosure indicated on aerial photography. In 2002 a geophysical survey was carried out on the Sherman Oaks Ltd owned lands including the Phase 1B excavation area. Nicholls noted several anomalies of probable interest to the southeast of DU015‐014---. A detailed survey was undertaken in Area 3 to investigate these responses and the survey area was expanded in an effort to determine the location of an elliptical cropmark evident on aerial photographs. A concentration of weak ditch‐ and pit‐type responses were recorded in the eastern half of the survey area, and numerous linear trends were also apparent in the data. Together, these responses corresponded with the approximate location of the elliptical cropmark noted to the south of DU015‐014----. One faint curvilinear ditch type response approximately 20m from the south eastern corner of the sample block may indicate the remains of a former enclosure ditch. In 2008 small scale test excavations were undertaken within the footprint of the mound DU015‐014--- (Moriarty 2009) and a detailed topographical survey of the site was undertaken as part of these works. The mound measures c. 27m by 14m and is at least 3m in height. Two test trenches revealed severe modern disturbance of the mound. The intact material contained some shell and occasional sherds of medieval pottery which led the excavator to suggest a later date for this feature than previously thought (ibid.)' (Wallace 2000; Moriarty 2009; McLoughlin 2019). See attached photographs and plan of site courtesy of and © Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. Moriarty, C. 2009 Final Report Archaeological Excavations at Portmarnock Mound (DU015-014----) and the Maynetown enclosure (DU015‐055----), Co. Dublin (Licence No.: 07E0574). Unpublished report prepared by Margaret Gowen and Co. Ltd for Ballymore Residential Ltd. McLoughlin, G. 2019 Final Archaeological Excavation Report, Station Road, Portmarnock, Excavation Licence No. 16E0613. Unpublished archaeological report submitted by Courtney Deery Heritage Consultancy Ltd. to the National Monuments Service on behalf of Sherman Oaks Ltd. Nicholls, J. 2002 Geophysical Survey: Baldoyle/Portmarnock Co. Dublin. Margaret Gowen & Co. Ltd. Licence No. 02R0020. Wallace, A. 2000 Archaeological assessment: Portmarnock mound, DU015:014, Portmarnock, Co. Dublin. Margaret Gowen & Co. Ltd. (unpublished). Compiled by: Geraldine Stout Revised by: Caimin O'Brien based on details provided by Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. Date of revised upload: 20 June 2023

• DU015-014001 Enclosure
  Description

  Cropmark of enclosure located SE of a mound (DU015-014----) annotated 'Mote' on Cassini ed. OSi 6-inch map. This enclosure is visible on aerial photographs (Google Earth 17/07/2006; Bing, accessed 31 January 2015) and a test-excavation (Licence no. 07E0574) as part of archaeological investigations of the mound (DU015-014----) were carried out in 2007. It was suggested that the enclosure or cropmark may have served as a bailey for the 'Mote' located to the N (Moriarty C. 2008:477 www.excavations.ie). In 2016 archaeological excavation by Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd under licence No. 16E0613 was carried out on this cropmark and the results were sumarised as follows; 'A residential development has been completed where the monument stood. The northern portion of the monument is preserved in situ within a 20m buffer zone around mound DU015-014, which has been developed as a green space with play area and information signage. The majority of the monument has been removed under excavation licence 16E0613 in advance of development. The line of the enclosure ditch where it is preserved below ground within the buffer zone around mound DU015-014----, is delineated by hard and soft landscaping. The site was visible on aerial photography and was tested (07E0574, Moriarty). Further testing was carried out during the excavation of an adjacent enclosure (16E0101, McLoughlin) and with the exception of the portion preserved in situ with the buffer zone for the mound, full excavation was carried out under licence ref 16E0613. Carried out pre-planning. The Phase 1B enclosure (DU015-014001-, 16E0613) was slightly elliptical or sub-circular in plan and measured a maximum external diameter of 77m east-west x 70m north-south (68m east-west x 60m north-south internal diameter), with an entrance to the east. The ditch cut was substantial, measuring up to 5.5m wide and 1.65m deep. Eight phases of activity were identified at the site, ranging from Mesolithic, early Bronze Age, late Bronze Age, Iron Age, Late Iron Age/early medieval transition, early Medieval (pre c.800 AD, early medieval (post c.800 AD) and modern. The bulk of the activity belonged to the late Iron Age / early medieval transition phases (c.400 – 600 AD). Finds recovered from the enclosure ditch during the excavation include early medieval imported pottery (LRA 1 and E ware), wooden artefacts from the base of the ditch, stone tools and worked antler artefacts. A huge volume of animal bone was recovered from the ditch including cetacean bones, and similar to the nearby Phase 1A enclosure (16E0101) the proportion of cattle was very high and suggestive of feasting. Cereal drying (kilns) and metalworking activity were evident on site and there was one adult male inhumation in the interior of the enclosure (radiocarbon dated to AD 410-607). The excavated portion of this site has now been built on and the northern part of the enclosure is preserved within a 20m buffer zone around the upstanding Portmarnock mound (DU015-014----). Two further enclosures have been excavated in the same field, 130m to the southwest (16E0101, Phase 1A) and 200m to the south (19E0303, Phase 1C). All three enclosures should be interpreted as part of one inter-related group and although the focus of activity may have shifted from one enclosure to another at various times, there certainly does appear to have been some overlap in their use. Another enclosure (DU015-055----) in Maynetown, 550m to the southeast, has also been subjected to targeted testing (22E0509) and also appears to be part of this cluster of associated enclosures. The clustering of enclosures in such a small area, associated with feasting evidence and a general lack of habitation evidence, the presence of some high status & late roman imported finds, a burial and an upstanding mound have led to the interpretation of this this cluster of sites, as being part of a possible assembly landscape' (McLoughlin 2019). See attached photographs and plan of site courtesy of and © Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. Moriarty, C. 2009 Final Report Archaeological Excavations at Portmarnock Mound (DU015-014----) and the Maynetown enclosure (DU015‐055----), Co. Dublin (Licence No.: 07E0574). Unpublished report prepared by Margaret Gowen and Co. Ltd for Ballymore Residential Ltd. McLoughlin, G. 2019 Final Archaeological Excavation Report, Station Road, Portmarnock, Excavation Licence No. 16E0613. Unpublished archaeological report submitted by Courtney Deery Heritage Consultancy Ltd. to the National Monuments Service on behalf of Sherman Oaks Ltd. Nicholls, J. 2002 Geophysical Survey: Baldoyle/Portmarnock Co. Dublin. Margaret Gowen & Co. Ltd. Licence No. 02R0020. Compiled by: Christine Baker Revised by: Caimin O'Brien based on details provided by Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. Date of revised upload: 20 June 2023

• DU015-014002 Kiln - corn-drying
  Description

  A residential development has been completed where the monument stood. Nothing remains. Entirely removed by excavation under licence 16E0613 in advance of development. The results of this excavation were summarised by Gill McLoughlin as follows; 'The excavation comprised the remains of a large sub‐surface ditched enclosure (DU015‐014001-) adjacent to the upstanding Portmarnock mound (DU015‐014----), east of the railway line at Portmarnock and south of Station Road. The archaeological excavation took place over fourteen weeks from the 9th January 2017 with a team of ten archaeologists and six general operatives. Excavation at the site followed previous archaeological monitoring and excavation in relation to Phase 1A of a permitted development immediately to the west of the enclosure site (Planning Ref. F13A/0248). The excavation that is the subject of this report is referred to as Phase 1B (Area 3). During the phase 1A archaeological investigations targeted testing was carried out on the phase 1B enclosure to confirm its existence and its nature and extent. The enclosure was slightly elliptical or sub‐circular in plan and measured a maximum external diameter of 77m east‐west x 70m north‐south (68m east‐west x 60m north‐south internal diameter), with an entrance to the east. Cereal drying (kilns) and metalworking activity were evident within the enclosure and a single adult male burial was also located within the interior. Further early medieval imported pottery (E ware) was recovered from other features within the enclosure. Area 3a lay within a southwest‐northeast pipeline trench / haul route from the phase 1A housing development to temporary attenuation pond no.1. Excavation of this area took place over three days from 18th‐20th May 2016 with three archaeologists. This trench, although it was not apparent at the time, cut through a ditched enclosure (SMR DU015‐014001-) and two features (C13 and C15) identified during monitoring of topsoil stripping were excavated and preserved by record. The features represent a cereal drying kiln and a linear feature of uncertain function, possibly serving as a windbreak to the kiln. At the time, it was thought that they were isolated features but subsequent targeted archaeological testing showed them to be internal features within a large ditched enclosure (DU015‐014001-). The pipeline was laid at a depth of approximately 5m. The exposed extent of the kiln measured 2.9m north‐south x 1.05m east‐west x 0.3m deep. The bowl was located at the northern end and the stoke hole to the south. The cut was clear and regular at the bowl end and had steep sides and a gently rounded base. Kiln C15 continued beyond the pipeline route to the south and was fully excavated during the phase 1B works (16E0613) and is further discussed in section 4.3.9 where it is referred to as C261. In the bowl, there were three fills (C20, C19 and C14). The basal fill in the bowl was a grey brown silty clay with moderate inclusions of animal bone, shell and charcoal (C20) and at the other end the basal fill was dark black‐grey silty clay 0.15m deep with abundant charcoal (C24). Overlying both C20 and C24 was a loose deposit of yellow‐grey gritty sandy silt with moderate charcoal and occasional bone (C19). The upper fill was dark brown‐black silty clay (C14) with frequent animal bone, occasional burnt bone, slag and seashell. This deposit was only present at the northern end of the kiln. Cut C15 equates to C261 from the phase 1B excavation and fills C19 and C24 equate to C291 and C292 respectively. Kiln C261 - C261 was a cereal drying kiln located in the southern area of the site and was aligned north‐south. The northern part of this feature was excavated during the Phase 1A works in May 2016, and the remainder was excavated during Phase 1B in April 2017. In total the kiln measured 3.8m long by 1m wide and 0.3m deep. The portion excavated during phase 1B was the southern end of the kiln and measured 1.1m north‐south by 1m east‐west and was 0.17m deep. The break of slope at the surface was sharp with steep almost vertical sides and a sharp break of slope to a flat, slightly concave base. Two fills were contained in the kiln and the lower fill C292 was a moderately compact layer of charcoal rich black silty clay with inclusions of cereal grain. This layer measured 1.1m by 1m and was 0.17m thick. Four fragments of dense slag (105g) (Rondelez, Appendix 5.7) and a sherd of unidentified early medieval imported pottery (16E0613:222) (Doyle, Appendix 5.1) were recovered from this layer. This black charcoal layer was partly sealed by C291, a thin band of moderately compact yellowgrey redeposited silty clay subsoil measuring 1m east‐west by 0.55m north‐south and 0.04m deep. This layer contained inclusions of small stones and occasional charcoal flecks. A sample of charred wheat (Hordeum sp., 0.1g) (Lyons, Appendix 5.9) from basal fill C292 returned a date range of 1107+/‐28 BP (UBA 36096), which was calibrated to AD 883‐1011 (2 sigma), indicating a date towards the end of the early medieval period for this phase of kilning activity (QUB, Appendix 5.14). A sample of fill C292 selected for environmental analysis contained both charred plant remains and charcoal. The charred plant remains were dominated by wheat, followed by barley with smaller quantities of oat and wild taxa and their presence indicates that the kiln was not cleaned out after it was last used and may have been abandoned after a fire. The composition of crops identified indicate a different harvesting phase or season from kiln C119 and this is supported by the dating evidence which places kiln C119 in the 5th/6th Century and kiln C261 in the 10th Century. Recent research has indicated that barley was more dominant in the earlier medieval period, pre c.700 and after this it declines on many sites and this is reflected in the plant species analysis and dating evidence for kilns C119 and C261. The wood species represented in the charcoal assemblage are very similar to those from kiln C119, being dominated by hazel, followed by pomaceous woods with smaller quantities of ash, willow and blackthorn (Lyons, Appendix 5.9). Of the recovered animal bone from the kiln, three bones were countable and none were burnt suggesting they were dumped in the kiln after it went out of use (Murray, Appendix 5.10). (McLoughlin 2019a 22-3; McLoughlin 2019b, 8-9; 37-8). See attached photographs and plan of site courtesy of and © Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. McLoughlin, G. 2019a Final Archaeological Excavation Report, Station Road, Portmarnock, 16E0101. Unpublished archaeological report submitted by Courtney Deery Heritage Consultancy Ltd. to the National Monuments Service on behalf of Sherman Oaks Ltd. McLoughlin, G. 2019b Final Archaeological Excavation Report, Station Road, Portmarnock, 16E0613. Unpublished archaeological report submitted by Courtney Deery Heritage Consultancy Ltd. to the National Monuments Service on behalf of Sherman Oaks Ltd. Compiled by: Caimin O'Brien based on details provided by Gill McLoughlin of Deery Heritage Consultancy Ltd Date of upload: 21 June 2023

• DU015-014003 Burial
  Description

  A residential development has been completed where the monument stood. Nothing remains. Entirely removed by excavation under licence 16E0613 in advance of development. The results of this excavation were summarised by Gill McLoughlin as follows; 'The excavation comprised the remains of a large sub‐surface ditched enclosure (DU015‐014001-) adjacent to the upstanding Portmarnock mound (DU015‐014----), east of the railway line at Portmarnock and south of Station Road. The archaeological excavation took place over fourteen weeks from the 9th January 2017 with a team of ten archaeologists and six general operatives. Excavation at the site followed previous archaeological monitoring and excavation in relation to Phase 1A of a permitted development immediately to the west of the enclosure site (Planning Ref. F13A/0248). The excavation that is the subject of this report is referred to as Phase 1B (Area 3). During the phase 1A archaeological investigations targeted testing was carried out on the phase 1B enclosure to confirm its existence and its nature and extent. The enclosure was slightly elliptical or sub‐circular in plan and measured a maximum external diameter of 77m east‐west x 70m north‐south (68m east‐west x 60m north‐south internal diameter), with an entrance to the east. A single adult male burial was found within the interior of the ditched enclosure, in the southwest quadrant. The cut (C151) was elongated with rounded corners and measured 2m x 0.8m x 0.6m deep. It was oriented WNW‐ESE and had vertical sides and a flat base. The basal fill (C143) comprised a moderately compact mid‐brown silty clay with occasional charcoal, sea shell and an extended supine skeleton with head to the WNW. This grave cut was recut (C131), but the recut respected the outline of the original cut, indicating that it may have been still been visible at the time of the recut. The recut measured 1.7m x 0.5m x 0.4m deep and there was evidence of burning along the edge of this cut, in particular along the southwest side (C146) where the burning was vertical indicating that it was burnt in situ. The upper fill comprised a moderately compact dark grey/brown silty clay with frequent inclusions of bone, charcoal, seashell, occasional burnt bone and medium sized stones (C132). The inclusions of bone in the upper fill comprised animal bone only. A flint end‐of‐blade convex scraper (16E0613:160) and a cetacean caudal vertebra fragment (16E0613:134) were recovered from this deposit. The cetacean (whale/dolpin/porpoise) caudal fragment has been lightly modified for use as a suspension weight and comes from a small cetacean (Riddler and Trzaska‐Nartowski, Appendix 5.3). It could represent a votive deposit and it is possible that the recut of the grave was for the purpose of depositing this item. The skeletal remains comprised the remains of a male, c.40‐45 years at age of death, estimated to have measured 172.2cm+/‐4.32cm (or 5’9” +/‐ 1.7”) in height, which would have been taller than average for males in early medieval and medieval Ireland. This man suffered from severe degenerative arthritis of the right shoulder and there were indications that the left upper limb was favoured over the right as a result. It was not possible to determine if this was caused by trauma or was due to old age however age at death would suggest the latter. The upper vertebral column was also affected by degenerative arthritis. This condition would have been painful, and probably inhibited this man’s ability to undertake daily activities (Tobin, Appendix 5.6). A sample of bone from the right femur was selected for radiocarbon dating, however the sample did not pass an initial nitrogen test and as such was not suitable for dating. A tooth (#17 in the dental arcade) was subsequently selected and returned a date range of 1545+/‐48 BP (UBA 35733), which was calibrated to AD 410‐607 (2 sigma), placing this individual in the late Iron Age/early medieval transition (QUB, Appendix 5.14). In an attempt to discover any additional information about the individual, such as if or when he may have moved to Portmarnock, three molars were selected for analysis of strontium isotope ratios and concentrations. The results suggest a marine‐based diet throughout the individual’s life, however it was not possible to assess mobility due to the signal being overshadowed by the input of marine resources. It is possible this individual moved but kept a marine‐based diet, but it is also possible that they stayed in the same location, close to the coast all their life (Snoeck, Appendix 5.15)' (McLoughlin 2019, 24-5). See attached photographs and plan of site courtesy of and © Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. McLoughlin, G. 2019 Final Archaeological Excavation Report, Station Road, Portmarnock, 16E0613. Unpublished archaeological report submitted by Courtney Deery Heritage Consultancy Ltd. to the National Monuments Service on behalf of Sherman Oaks Ltd. Compiled by: Caimin O'Brien based on details provided by Gill McLoughlin of Deery Heritage Consultancy Ltd Date of upload: 21 June 2023

• DU015-014004 Kiln - corn-drying
  Description

  A residential development has been completed where the monument stood. Nothing remains. Entirely removed by excavation under licence 16E0613 in advance of development. The results of this excavation were summarised by Gill McLoughlin as follows; 'The excavation comprised the remains of a large sub‐surface ditched enclosure (DU015‐014001-) adjacent to the upstanding Portmarnock mound (DU015‐014----), east of the railway line at Portmarnock and south of Station Road. The archaeological excavation took place over fourteen weeks from the 9th January 2017 with a team of ten archaeologists and six general operatives. Excavation at the site followed previous archaeological monitoring and excavation in relation to Phase 1A of a permitted development immediately to the west of the enclosure site (Planning Ref. F13A/0248). The excavation that is the subject of this report is referred to as Phase 1B (Area 3). During the phase 1A archaeological investigations targeted testing was carried out on the phase 1B enclosure to confirm its existence and its nature and extent. The enclosure was slightly elliptical or sub‐circular in plan and measured a maximum external diameter of 77m east‐west x 70m north‐south (68m east‐west x 60m north‐south internal diameter), with an entrance to the east. Kiln C214 - C214 was the cut of a figure‐of‐eight shaped kiln, also located in the south of the site, 2.5m southwest of kiln C261. This kiln was aligned south‐west to north‐east and measured 2.15m x 1.35m and was a maximum of 0.2m deep. The natural subsoil at the base of the kiln cut was burnt red and sealed by basal layer C213, which was a moderately compacted oxidised red clay with frequent burnt bone, shell, charcoal and small stone inclusions. This layer measured 1.8m x 0.5m and 0.1m deep. The northern side of fill C213 was overlain by a layer of redeposited natural subsoil (C239) measuring 1.5m x 0.5m and 0.1m deep. On the southern side C213 was sealed by C215, a layer of moderately compacted dark black brown soil with frequent burnt and unburnt animal bone and mottled with red burnt soil. This layer measured 0.9m x 0.5m and 0.1m deep. A setting of four stones (C226) divided the upper layers C239 and C215 which may represent distinct phases of use for this feature. Layers C213 and C239 may represent the primary use as a kiln while C226 and C215 may represent reuse of the feature as a hearth. A sample of fill C215 selected for environmental analysis contained a single charred pea and a small quantity of indeterminate cereal grains as well as hazel charcoal. The quantities of charred remains were small and indicate that, in contrast with the other two kilns, this kiln had been cleaned out after it was last used (Lyons, Appendix 5.9). This feature is most likely to belong to one of the early medieval phases of activity (Phases 5, 6, or 7)' (McLoughlin 2019, 42). See attached photographs and plan of site courtesy of and © Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. McLoughlin, G. 2019 Final Archaeological Excavation Report, Station Road, Portmarnock, 16E0613. Unpublished archaeological report submitted by Courtney Deery Heritage Consultancy Ltd. to the National Monuments Service on behalf of Sherman Oaks Ltd. Compiled by: Caimin O'Brien based on details provided by Gill McLoughlin of Deery Heritage Consultancy Ltd Date of upload: 21 June 2023

• DU015-014005 Metalworking site
  Description

  A residential development has been completed where the monument stood. Nothing remains. Entirely removed by excavation under licence 16E0613 in advance of development. The results of this excavation were summarised by Gill McLoughlin as follows; 'The excavation comprised the remains of a large sub‐surface ditched enclosure (DU015‐014001-) adjacent to the upstanding Portmarnock mound (DU015‐014----), east of the railway line at Portmarnock and south of Station Road. The archaeological excavation took place over fourteen weeks from the 9th January 2017 with a team of ten archaeologists and six general operatives. Excavation at the site followed previous archaeological monitoring and excavation in relation to Phase 1A of a permitted development immediately to the west of the enclosure site (Planning Ref. F13A/0248). The excavation that is the subject of this report is referred to as Phase 1B (Area 3). During the phase 1A archaeological investigations targeted testing was carried out on the phase 1B enclosure to confirm its existence and its nature and extent. The enclosure was slightly elliptical or sub‐circular in plan and measured a maximum external diameter of 77m east‐west x 70m north‐south (68m east‐west x 60m north‐south internal diameter), with an entrance to the east. Smithing heath C138 - C138 was a small pit located in the south of the enclosure, c.6m north‐east of burial C151 [DU015-014003-]. It was roughly circular in plan and measured 0.82m by 0.78 and was 0.38m deep. The pit contained two fills. The basal fill was a moderately compacted grey sandy clay 0.32m deep with occasional charcoal, sea shell and slag inclusions (C145). Above this was a layer of dark grey sandy clay 0.27m deep with inclusions of charcoal, burnt bone, burnt stone, seashell, slag, flint and medieval pottery (C139). The pottery recovered from C139 was two sherds of Dublin‐type ware (McCutcheon, Appendix 5.2) and it is likely to have found its way into the upper fill of this pit as a result of modern disturbance. The single piece of flint recovered from fill C139 was a burnt and shattered flint flake fragment (16E0613:219) (Weadick, Appendix 5.5). The slag retrieved from fill C145 comprised ten fragments of irregular dense slag, some with embedded flake hammerscale and charcoal (113g) and flake hammerscale was also present in a soil sample of this fill. The slag recovered from fill C139 comprised eight pieces of light to dense slag (76g), all irregular, except one which shows distinct flow structure. The presence of both slag and hammerscale in this pit indicates that the feature was used as a smithing hearth (Rondelez, Appendix 5.7). A sample from pit C138 was selected for environmental analysis, from the basal fill C145. Charred plant remains comprised a single barley and a single wheat grain which would have found their way into the fill from nearby kilning activities. The small quantity of charcoal retrieved was dominated by ash, followed by pomaceous woods (Lyons, Appendix 5.9).' (McLoughlin 2019, 24). See attached photographs and plan of site courtesy of and © Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. McLoughlin, G. 2019 Final Archaeological Excavation Report, Station Road, Portmarnock, 16E0613. Unpublished archaeological report submitted by Courtney Deery Heritage Consultancy Ltd. to the National Monuments Service on behalf of Sherman Oaks Ltd. Compiled by: Caimin O'Brien based on details provided by Gill McLoughlin of Deery Heritage Consultancy Ltd Date of upload: 21 June 2023

• DU015-014006 Kiln - corn-drying
  Description

  A residential development has been completed where the monument stood. Nothing remains. Entirely removed by excavation under licence 16E0613 in advance of development. The results of this excavation were summarised by Gill McLoughlin as follows; 'The excavation comprised the remains of a large sub‐surface ditched enclosure (DU015‐014001-) adjacent to the upstanding Portmarnock mound (DU015‐014----), east of the railway line at Portmarnock and south of Station Road. The archaeological excavation took place over fourteen weeks from the 9th January 2017 with a team of ten archaeologists and six general operatives. Excavation at the site followed previous archaeological monitoring and excavation in relation to Phase 1A of a permitted development immediately to the west of the enclosure site (Planning Ref. F13A/0248). The excavation that is the subject of this report is referred to as Phase 1B (Area 3). During the phase 1A archaeological investigations targeted testing was carried out on the phase 1B enclosure to confirm its existence and its nature and extent. The enclosure was slightly elliptical or sub‐circular in plan and measured a maximum external diameter of 77m east‐west x 70m north‐south (68m east‐west x 60m north‐south internal diameter), with an entrance to the east. Kiln C119 - C119 was the cut of a figure‐of‐eight shaped cereal drying kiln located in the eastern area of the site adjacent to pit/hearth C92. This kiln was aligned north‐south with a deep bowl at the north end and a shallower flue to the south (Figures 17 & 20, Plates 5‐6). The kiln cut measured 2.5m long and 1.65m wide and was 0.8m at maximum depth. The basal fill was a loose black charcoal rich sandy silt with frequent charred cereal grains and occasional stone inclusions (C125). This layer lined the base of the northern bowl of the kiln and extended partly into the flue. It measured 1.2m long by 1.65m wide and was 0.1m deep. A group of four baffle stones were located at the junction between the bowl and the flue. These stones (C144) were angular and flat and measured on average 0.2 by 0.15m. They comprised of three limestone pieces and one piece of sandstone, all of which showed evidence of exposure to heat. The baffle stones and basal charcoal layer were sealed by C123, a layer of loose grey clayey silt with frequent scorched stone inclusions. This layer also included frequent animal bones, some of which were burnt, occasional fragments of oyster shells and slag. The slag recovered from fill C123 is a dense, irregular smithing hearth cake with embedded charcoal fragments (168g) and a sample of the flotation residue from a sample of the fill contained flake hammerscale indicating that this feature was used for smithing work, perhaps after it had gone out of use as a kiln (Rondelez, Appendix 5.7). This layer filled the full length and width of the kiln and was 0.2m deep. The upper fill of the kiln was a loose, dark grey clayey sand (C120) with inclusions of frequent small stones, some of which were scorched, animal bone and a small light lump of slag with charcoal impressions (16g) (Rondelez, Appendix 5.7). This layer was 0.38m deep and filled the entire length and width of the kiln cut. Two samples from kiln C119 were selected for environmental analysis, from the basal fill C125 and the middle fill C123. The charred cereals from both fills were dominated by barley, followed by wheat with smaller quantities of oat and the fact that the charred grain was left in situ indicates that the kiln was not cleaned out and may have been abandoned after a fire. The charcoal from the kiln was dominated by hazel followed by pomaceous woods, blackthorn, ash and cherry‐type and represents fuel which is likely to have been gathered from whatever woods were locally available. The dominance of hazel could represent the wood used in the construction of the kiln (Lyons, Appendix 5.9). A sample of charred barley (Hordeum sp., 0.1g) (Lyons, Appendix 5.9) from C125 returned a date range of 1561+/‐41 BP (UBA 36089), which was calibrated to AD 408‐584 (2 sigma), indicating a date in the late Iron Age/early medieval transition for this kilning event (QUB, Appendix 5.14). On the eastern side of the kiln a small oval cut (C140) may have truncated the upper fill of the kiln however the exact relationship between the two features was not clear. The fill contained occasional animal bone and charcoal inclusions (C141) ' (McLoughlin 2019, 20-1). See attached photographs and plan of site courtesy of and © Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. McLoughlin, G. 2019 Final Archaeological Excavation Report, Station Road, Portmarnock, 16E0613. Unpublished archaeological report submitted by Courtney Deery Heritage Consultancy Ltd. to the National Monuments Service on behalf of Sherman Oaks Ltd. Compiled by: Caimin O'Brien based on details provided by Gill McLoughlin of Deery Heritage Consultancy Ltd Date of upload: 21 June 2023

• DU015-121 Enclosure
  Description

  A square shaped enclosure with rounded corners visible as a crop mark on an aerial photograph (SMR file; pers. comm. T. Condit). On apex of east-west ridge that slopes gently southwards, views south to Dublin Mountains Compiled by: David O’Connor Updated by: Christine Baker Date of upload: 28 January 2015

• DU015-136001 Structure
  Description

  An extensive later medieval settlement (c. 50-70m NS x 110m), containing six well-defined property plots, was excavated at Station Road, Portmarnock (Licence no. 08E0376). The six plots were defined by linear ditches and were separated into toft and croft areas by internal divisions. This structure was identified within Plot 1 which was defined by a series of shallow inter-cutting ditches (16m - 17m E-W x 64m). The north of the plot contained the truncated remains of a structure with a metalled yard, well and rubbish pits to the rear. The structure (15m E-W) was defined by a stone wall which had been largely robbed-out in the 17th century. Evidence for a doorway (c. 2.1m wide) survived along the southern wall, while internally the building contained a packed clay floor, the remains of a hearth and the foundations for an internal division A large assemblage of artefacts was recovered during the excavation, including in excess of 2,000 sherds of medieval pottery, mainly locally produced Leinster cooking ware and Dublin-type wares, as well as large numbers of metal objects (3,001). Evidence for food waste included substantial amounts of butchered animal bone as well as quantities of seashell (cockles, muscles, oysters, periwinkles, razor shell, etc.) and carbonised grains. Radiocarbon analysis (AD 1491-1642) suggests the main occupation of the settlement was 16th – 17th century (Moriarty 2009). Compiled by: Christine Baker Date of upload: 6 February 2015

• DU015-136002 Structure
  Description

  An extensive later medieval settlement (c. 50-70m NS x 110m), containing six well-defined property plots, was excavated at Station Road, Portmarnock (Licence no. 08E0376). The six plots were defined by linear ditches and were separated into toft and croft areas by internal divisions. This structure, one of two (see DU015-136003-), was identified within Plot 2 which was defined by a series of shallow inter-cutting ditches (14m - 16m E-W x 65m). The partial remains of two buildings and an associated yard area were identified to the front of the toft, while the croft was largely devoid of features. This structure was defined by shallow foundation cuts which enclosed a sub-rectangular area (6m N-S x 7m E-W). Although severely truncated by 17th century ditch and pits, the foundation cuts contained some in situ wall stones including a foundation pad. The partial remains of a packed floor and charcoal spread were uncovered in the interior. A large assemblage of artefacts was recovered during the excavation, including in excess of 2,000 sherds of medieval pottery, mainly locally produced Leinster cooking ware and Dublin-type wares, as well as large numbers of metal objects (3,001). Evidence for food waste included large amounts of butchered animal bone as well as quantities of seashell (cockles, muscles, oysters, periwinkles, razor shell, etc.) and carbonised grains. Radiocarbon analysis suggests the main occupation of the settlement was in the 16th – 17th century (Moriarty 2009). Compiled by: Christine Baker Date of upload: 6 February 2015

• DU015-136003 Structure
  Description

  An extensive later medieval settlement (c. 50-70m NS x 110m), containing six well-defined property plots, was excavated at Station Road, Portmarnock (Licence no. 08E0376). The six plots were defined by linear ditches and were separated into toft and croft areas by internal divisions. This structure was one of two (DU015-136002-) located within Plot 2. This structure survived as an area of clay flooring (5.4m x 3.5m) with an associated hearth and a western shallow wall cut. It was in a poor state of presentation having been truncated by a medieval gully and 17th century ditch as well as modern deep ploughing. Nine animal skulls (8 horses, 1 sheep) were deliberately placed within the floor when it was thrown down. The horse skulls were all from stallions, the majority of which were over 15 years old at time of death. None had jaw bones attached suggesting that they were defleshed at time of internment. In addition a ferrous knife with maker’s mark (rosette, dot and sideward chevron), Dubin type ware and Leinster Cooking ware were recovered from the floor (Moriarty 2009, 37). Radiocarbon analysis suggests the main occupation of the settlement was in the 16th – 17th century (Moriarty 2009). Compiled by: Christine Baker Date of upload: 6 February 2015

• DU015-136004 Structure
  Description

  An extensive later medieval settlement (c. 50-70m NS x 110m), containing six well-defined property plots, was excavated at Station Road, Portmarnock (Licence no. 08E0376). The six plots were defined by linear ditches and were separated into toft and croft areas by internal divisions. This structure was one of two (see DU015-136005-) identified within Plot 3 which was defined by a series of shallow inter-cutting ditches (14-16m EW x 60m). The toft contained the two structures, along with pits, gullies and wells. This rectangular structure (8.5m x 6m) was located at the front (N) of the toft. It was divided into separate rooms by an internal wall. The southern room (5mEW x 4m) was defined by low foundations walls and contained a packed clay floor and two areas of burning. The second room (2m NS x 4.8m EW) was defined by an L-shaped wall that had been severely truncated and contained a metalled floor. A horse skull had been placed in the centre of the building. Leinster Cooking ware and Dublin wares were recovered from the structure. Charcoal inclusions from the floor deposit included oak and blackthorn while plant remains consisted of barley/wheat, oat, garden pea, and legumes. Radiocarbon analysis of oak charcoal returned a date pf c. AD 1491-1641 (Moriarty 2009, 48) and suggests the main occupation of the settlement was in the 16th – 17th century. Compiled by: Christine Baker Date of upload: 6 February 2015

• DU015-136005 Structure
  Description

  An extensive later medieval settlement (c. 50-70m NS x 110m), containing six well-defined property plots, was excavated at Station Road, Portmarnock (Licence no. 08E0376). The six plots were defined by linear ditches and were separated into toft and croft areas by internal divisions. This structure was one of two (see DU015-136004-) identified within Plot 3 which was defined by a series of shallow inter-cutting ditches (14-16m EW x 60m). The toft contained the two structures, along with pits, gullies and wells. This rectangular structure (4m EW x 5.5m) was located 0.7m NW of the other structure (DU015-136004-) within the plot. Severely truncated, the surviving elements consisted of mud-bonded limestone walls and contained a well-defined hearth (0.6m diam.). The presence of a spud stone suggested an east-facing entrance. The interior of the structure was filled by accumulated domestic waste that consisted of food remains (seashells, butchered animal bone), medieval pottery, a glass bead, three knives and iron nails (Moriarty 2009, 50). Radiocarbon analysis suggests the main occupation of the settlement was in the 16th – 17th century (Moriarty 2009). Compiled by: Christine Baker Date of upload: 6 February 2015

• DU015-136006 Habitation site
  Description

  An extensive later medieval settlement (c. 50-70m NS x 110m), containing six well-defined property plots, was excavated at Station Road, Portmarnock (Licence no. 08E0376). The six plots were defined by linear ditches and were separated into toft and croft areas by internal divisions. The full extent of the western plots (4-6) could not be assessed as their N ends continued beneath Station Road. For this reason it is also likely that any buildings, which are located towards the north of the tofts in the adjacent plots, are also located beyond the N limit of the excavation. Plot 4 (15m wide x 55m) was defined by a series of shallow ditches, separated into toft and croft areas. A well pit (5.4m x 3m x 2m deep) was located towards the front of the toft. The waterlogged basal fill contained grass, twigs, leather shoe fragments and part of a wooden bowl. A hazel twig was radiocarbon dated to AD 1491-1642. The toft of Plot 5 (21m wide x 48m) was dominated by large terraced yard area (16m x 12m) while the croft contained a scatter of pits and large metalled laneway (5m wide) to the rear. The toft of the westernmost Plot 6 (22m wide x 38m) contained a metal surface, gullies, and pits while the croft contained the partial remains of the metalled laneway (Moriarty 2009, 50). Radiocarbon analysis suggests the main occupation of the settlement was in the 16th – 17th century (Moriarty 2009). Compiled by: Christine Baker Date of upload: 6 February 2015

• DU015-137 Road - road/trackway
  Description

  A previously unrecorded medieval roadway was partially excavated (Licence no. 08E0376) in advance of car park construction. Located 200m W of the medieval settlement (DU015-136----), the roadway is orientated N – S and extends beyond the limits of the development site that was investigated. The excavated section, 35m in length, consisted of a compact metalled surface (3-3.5m in width) flanked on either side by ditches (1.2m – 1.6m wide). (Moriarty 2009, 113) Compiled by: Christine Baker Date of upload: 6 February 2015

• DU015-153 Enclosure
  Description

  A residential development has been completed where the monument stood. Nothing remains. Entirely removed by excavation under licence 16E0101 in advance of development. The site was identified during monitoring of topsoil stripping related to a housing development and was fully excavated under licence 16E0101. Planning ref. F13A/0248. The results of this excavation were summarised by Gill McLoughlin as follows; 'A large sub-square ditched enclosure (39m x 50m) with an entrance to the north-northeast, dating to the late Iron Age/early medieval period. The general lack of habitation evidence or other activities within the enclosure, supported by the specialist analysis of plant remains and animal bone initially suggested this site functioned as an enclosure for housing livestock, however based on the results of subsequent excavations in the immediate surrounding area, it seems that this enclosure may have been a component of a feasting/gathering site. There was no trace of any structures within the enclosure to indicate domestic or industrial activities. A possible outer enclosure defined by a smaller curvilinear ditch may have enclosed an area to the south of the main enclosure, however during monitoring this ditch did not appear to be of any significance and two sections were excavated and recorded in that area. The fills were sterile and the cut was shallow and no features were evident within this possible outer enclosure. The enclosure ditch varied greatly in its dimensions and ranged from 2m-4.75m in width and 0.8m-2.6m in depth. The ditch fills contained large quantities of animal bone and frequent seashell and at the lower levels of the deepest parts of the ditch, to either side of the entrance terminals, the fills were waterlogged and contained organic material. Finds from these deposits included a wooden hoop made of yew which was fastened with a leather tie. Radiocarbon dating results indicate that the main period of use for the enclosure was between the late 7th - late 9th Centuries, however the dating and layout of an internal curving ditch suggests continuous occupation from the Iron Age at the site. This ditch had an entrance, oriented to the north-northeast which mirrored the main enclosure entrance. The lower fill of the inner ditch returned a date range of cal BC 347-43 placing this feature in the Iron Age, while the upper fill was dated to cal AD 671-868, indicating that the inner ditch was most likely still in use when the outer ditch was constructed. It implies a continuity of occupation at the site from the Iron Age to the early medieval period. The most significant finds associated with the enclosure are a Romano-British socketed iron knife blade and a copper-alloy pin. The pin is a baluster headed example with a spiral ring through the head and a decorated spatula shaped projection beyond the head. Decoration on the pin and head are in the form of dots and the decoration on the spatula shaped projection is engraved interlace. There are very few comparable pins in the record and the decoration makes it unique. According to Fanning (1992, 1994), spiral ringed baluster headed pins are a type that originated in Ireland in the late 4th or early 5th Century AD and are likely to have been made by craftsmen copying Roman or sub-Roman proto types. A large assemblage of animal bone was recovered from the site, mostly from fills of the enclosure ditch and cattle dominated the assemblage, with over 60% of the identified specimens being from this species, which is higher than typical for sites from this period and may be an indication of feasting at the site. The siting of this enclosure so close to the estuary and to several other ditched enclosures in the immediate area may imply a strategic relationship to the estuary, possibly related to the control of trade. Subsequent to the completion of the excavation of this enclosure (Phase 1A), two further enclosures have been excavated in the same field, 130m to the northeast (16E0613, DU015-014001-, Phase 1B) and 150m to the southeast (19E0303, Phase 1C). Another enclosure (DU015-055----) in Maynetown, 600m to the southeast, has also been subjected to targeted testing (22E0509). Finds and dating evidence for the Phase 1B enclosure (DU015-014001-, 16E0613) places the site in the late Iron Age and early medieval period. Finds recovered from the ditch during the excavation include early medieval imported pottery (LRA 1 and E ware), wooden artefacts from the base of the ditch, stone tools and worked antler artefacts. A huge volume of animal bone was recovered from the ditch including cetacean bones, and similar to the Phase 1A enclosure the proportion of cattle was very high and suggestive of feasting. Cereal drying (kilns) and metalworking activity were evident on site and there was one adult male inhumation in the interior of the enclosure (radiocarbon dated to AD 410-607). The excavated portion of this site has now been built on and the northern part of the enclosure is preserved within a 20m buffer zone around the upstanding Portmarnock mound (DU015-014----). The Phase 1C enclosure (19E0303) comprised an inner sub-circular or oval ditched enclosure measuring 36m x 29m and an outer irregular oval ditched enclosure measuring 105m x approx. 71m, the eastern side of which corresponded with the upstanding boundary between Portmarnock and Drumnigh townlands. Radiocarbon dating has indicated that the two enclosures were contemporary, with most of the dates ranging between the mid/late 7th – late 10th Centuries, although there was some evidence that the beginnings of the site may have been during the late Iron Age / early medieval transition. There was also evidence for some activity at the site in the early Bronze Age, in the form of a gully truncated by the outer enclosure ditch, and a late Bronze Age copper-alloy knife blade recovered from the outer ditch represents disturbance of an earlier phase of activity, either at or in the vicinity of the site. A wooden bucket-type vessel made of yew recovered from waterlogged basal fills of the inner ditch returned a radiocarbon date range of AD 652-763. The wooden vessel, along with two tiny bone comb fragments, an iron weaving tensioner, a small amount of iron slag and a tuyere fragment are indications of domestic and small-scale industrial activities at the site. The clustering of enclosures in such a small area, associated with feasting evidence and a general lack of habitation evidence, the presence of some high status & late roman imported finds, a burial and an upstanding mound have led to the interpretation of this this cluster of sites, as being part of a possible assembly landscape'. See attached photographs and plan of site courtesy of and © Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. Fanning, T. 1992 Ringed Pins, the Hiberno‐Norse and the Discovery of Vinland. Archaeology Ireland Vol.6, No.1 p. 24‐26. McLoughlin, G. 2019 Final Archaeological Excavation Report, Station Road, Portmarnock, Excavation Licence No. 16E0101. Unpublished archaeological report submitted by Courtney Deery Heritage Consultancy Ltd. to the National Monuments Service on behalf of Sherman Oaks Ltd. Compiled by: Caimin O'Brien based on details provided by Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. Date of upload: 20 June 2023

• DU015-154 Settlement deserted - medieval
  Description

  A residential development has been completed where the monument stood. Nothing remains. Entirely removed by excavation under licence 18E0016 in advance of development. The area came to light in 2016 during archaeological monitoring for an attenuation pond associated with the previous phase of development (Phase 1A, 16E0101) and appeared to be an easterly continuation of the late medieval village excavated by Moriarty in 2008 (08E0376, DU015-0136001/006-) (Area 5a). At that time the remains were covered with terram and backfilled pending further information on the development plans for that area. Further testing carried out in May 2018 to the west and south of the previous excavation area identified further features thought to represent a westerly continuation of this activity (Area 5b). The site was fully excavated under licence 18E0016 and nothing now remains. Planning ref. ABP 300514-17. The results of this excavation were summarised by Gill McLoughlin as follows; 'In Area 5A (figure 1, ITM 723355E/742445N) the archaeological remains comprised north-south linear ditches and intermittent east – west ditches broadly consistent with the pattern of ditches identified in the previous excavation area (Moriarty 08E0376). Other features included an area of metalling suggestive of a yard area and three well pits. Remnants of a stone structure in the south of the site were defined by an L-shaped foundation with a keyhole shaped oven set into the wall. Charred cereal from a founding deposit in the structure returned a date range of 1275-1386 AD, placing the initial construction between the late 13th – late 14th Century and a lower fill of the main north-south linear ditch returned a date range of 1420-1454 AD. A large quantity of medieval pottery, mostly Dublin-type and Leinster Cooking Ware was recovered from this area, along with a large assemblage of plough pebbles and moderate quantities of animal bone. Processing of soil samples from selected features also yielded charred cereals. In Area 5B (Figure 1, ITM 723190E/742450N) three early modern north-south linear ditches were identified along with a number of smaller linear features, gullies and pits. The majority of these features were early modern in date however a small number of them may have been related to the previously excavated later medieval settlement to the east. Area 5C (Maynetown townland, ITM 723424E/742250N) was previously identified by geophysical anomalies and verified by test excavation (Phelan 2004, licence Ref 04E1415). The site which subsequently formed part of the Phase 1B development lands was archaeologically excavated under licence 18E0016 and revealed a burnt mound trough dated to the early Bronze Age (2135-1920 BC). The main focus of the 2018 excavation (18E0016) revealed a continuation of the medieval village excavated in 2008 which uncovered six well defined property plots with associated yard areas and wells (Moriarty 2009). Moriarty concluded that the main occupation of the village dated to the 16th–17th Century and the 2018 excavation has added to the archaeological record in a number of key areas, most notably the dating of the structure in the south of the area to the 13th Century and the main north-south ditch to the early 15th Century. The recovery of the assemblage of plough pebbles from this area is also significant in terms of dating and because their presence indicates a different use for the eastern area of the village after the initial phase of activity associated with the structure. The dating and plough pebble evidence suggest that the settlement may have begun in the east in the 13th Century and extended west over time' (McLoughlin 2020). See attached photographs and plan of site courtesy of and © Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. Moriarty, C. 2009 Final Report Archaeological Excavations at Portmarnock, Co. Dublin (Licence No.: 08E0376). Unpublished report prepared by Margaret Gowen and Co. Ltd for Ballymore Residential Ltd. McLoughlin, G. 2020 Final Archaeological Excavation Report, Station Road, Portmarnock, 18E0016. Unpublished archaeological report submitted by Courtney Deery Heritage Consultancy Ltd. to the National Monuments Service on behalf of Sherman Oaks Ltd. Compiled by: Caimin O'Brien based on details provided by Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. Date of upload: 20 June 2023

• DU015-155 Enclosure
  Description

  A residential development has been completed where the monument stood. Nothing remains. Entirely removed by excavation under licence 19E0303 in advance of development. The site was fully excavated under licence ref. 19E0303. Excavation carried out pre-planning. The results of the excavation were summarised by Gill McLoughlin as follows; 'A ditched enclosure excavated in advance of a residential development (Phase 1C, 19E0303). It comprised an inner sub-circular or oval ditched enclosure measuring 36m x 29m and an outer irregular oval ditched enclosure measuring 105m x approx. 71m, the eastern side of which corresponded with the upstanding boundary between Portmarnock and Drumnigh townlands. Radiocarbon dating has indicated that the two enclosures were contemporary, with most of the dates ranging between the mid/late 7th – late 10th Centuries, although there was some evidence that the beginnings of the site may have been during the late Iron Age / early medieval transition. There was also evidence for some activity at the site in the early Bronze Age, in the form of a gully truncated by the outer enclosure ditch, and a late Bronze Age copper-alloy knife blade recovered from the outer ditch represents disturbance of an earlier phase of activity, either at or in the vicinity of the site. A wooden bucket-type vessel made of yew recovered from waterlogged basal fills of the inner ditch returned a radiocarbon date range of AD 652-763. The wooden vessel, along with two tiny bone comb fragments, an iron weaving tensioner, a small amount of iron slag and a tuyere fragment are indications of domestic and small-scale industrial activities at the site. The course of the outer enclosure was irregular, particularly on the western and southern sides and could be described as serpentine in layout. While it was in general a small ditch averaging 1.32m wide x 0.51m deep for the most part, a 15m stretch of the ditch to the northeast was more substantial, measuring up to 2.6m wide x 1.1m deep. It was also deeper than average around a possible entrance feature to the south where it was up to 0.95m deep approaching the terminals either side of a shallow causeway. The inner enclosure was slightly sub-circular or oval in plan and measured up to 3.2m wide x 1.41m deep and there was no evidence for an entrance. In general, the ditch was shallowest to the east, an area that also contained substantial deposits of seashell. The animal bone assemblage recovered from Portmarnock 1C was much smaller than that recovered from the two nearby excavated sites of Portmarnock 1A (DU015-0153----) and 1B (DU015-154001-) (16E0101 & 16E0613) and may suggest a different use to the other enclosures. However, like sites 1A and 1B (DU015-154001-), cattle dominated the assemblage, representing over half (59% by MNI), which is relatively high when compared to contemporary sites and may be an indication of feasting. Two other sub-surface ditched enclosures (DU015-153----/014001-) have also been excavated in the same field in 2016 and 2017 by this author, approx. 150m to the northwest and 200m to the north (16E0101, Phase 1A and 16E0613, Phase 1B respectively). These monuments dated predominantly to the late Iron Age/early medieval transition and the early medieval period, although there were indications through scientific dating and individual finds that there was also a presence in this area during the Mesolithic, Neolithic, Bronze Age and Iron Age. All three enclosures should be interpreted as part of one inter-related group and although the focus of activity may have shifted from one enclosure to another at various times, there certainly does appear to have been some overlap in their use. An additional enclosure in Maynetown (DU015-055----) also appears to be part of this cluster of associated enclosures. The clustering of enclosures in such a small area, associated with feasting evidence and a general lack of habitation evidence, the presence of some high status & late roman imported finds, a burial and an upstanding mound have led to the interpretation of this cluster of sites, as being part of a possible assembly landscape' (McLoughlin 2022). See attached photographs and plan of site courtesy of and © Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. McLoughlin, G. 2022 Final Archaeological Excavation Report, Station Road, Portmarnock, Phase 1C. Unpublished archaeological report licence No. 19E0303 submitted by Courtney Deery Heritage Consultancy Ltd. to the National Monuments Service on behalf of Sherman Oaks Ltd. Compiled by: Caimin O'Brien based on details provided by Gill McLoughlin of Courtney Deery Heritage Consultancy Ltd. Date of upload: 21 June 2023

Architectural heritage

• Saint Marnock's Church (Portmarnock), church/chapel, 1785–1790 · Regional interest
  Description

  Detached three-bay double-height Board of First Fruits Church of Ireland church, built 1786-8; consecrated 1790, on a rectangular plan comprising two-bay double-height nave opening into single-bay double-height apse (east) on a bowed plan with single-bay four-stage tower to entrance (west) front on a square plan. Closed, 1960. Now disused. Pitched slate roof; half-conical slate roof (apse), clay ridge tiles, and cast-iron rainwater goods on rendered eaves retaining cast-iron downpipes. Lime rendered coursed rubble stone battered walls with concealed flush quoins to corners; lime rendered surface finish (tower) with battlemented parapet. Pointed-arch window openings with cut-granite sills, timber Y-mullions, and concealed dressings framing fixed-pane fittings. Lancet openings (tower) with cut-granite sills, and concealed dressings framing louvered timber fittings. Set in own grounds.

• Forge/smithy, 1830–1860 · Regional interest
  Description

  Detached gable-fronted single-bay single-storey former forge, c.1850, with a horseshoe shaped entrance opening. Now disused.ROOF: Double pitched corrugated iron. WALLS: Rough cast render over red brick. OPENINGS: Horseshoe central opening with brick dressings and key stone, corrugated iron covering to door; square headed double leaf tongue and groove timber door to side elevation.

Designated sites: National Parks and Wildlife Service. Recorded monuments: Sites and Monuments Record, National Monuments Service. Buildings: National Inventory of Architectural Heritage. Department of Housing, Local Government and Heritage, CC BY 4.0. Works at or in relation to a recorded monument need two months' written notice to the National Monuments Service (National Monuments (Amendment) Act 1994, section 12).

Radon

About 1 in 20 homes in this area is likely to have high radon levels. Testing a home

Landslides

Susceptibility low, low (inferred), on the 1:50,000 map.

Terrain model

LiDAR of the Office of Public Works, flown in 2011, at 2 m: tile OPW_3305 (ZIP).

Flooding

The flood maps of the Office of Public Works: floodinfo.ie.

Radon Risk Map of Ireland, Environmental Protection Agency; Landslide Susceptibility Classification, Geological Survey Ireland; both CC BY 4.0. LiDAR: contains Irish Public Sector Data (Geological Survey Ireland & the Office of Public Works) licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence.

No address of the register names Portmarnock with five sales or more. The sales of the area are on the page of Co. Dublin.

Name

Portmarnock · Port Mearnóg

Area

1,567,269 m² (156.73 ha, 387.28 acres)

Civil parish

Portmarnock, and its townlands

Barony

Coolock

Electoral division

Kinsaley, the unit of the census

Census 2022

Kinsaley electoral division: 11,470 people in 3,746 households; 68% of households own their home; 69% of homes were built since 2001; 4% of dwellings stood vacant on census night, and 0% were holiday homes.

Neighbouring townlands

Beechwood, Burrow, Carrickhill, Drumnigh, Hazelbrook, Kinsaley, Maynetown

Placenames

Portmarnock on logainm.ie, the Placenames Database of Ireland

Townlands, civil parishes, baronies and electoral divisions, National Statutory Boundaries, Tailte Éireann, CC BY 4.0. Census 2022, Small Area Population Statistics by electoral division, Central Statistics Office, CC BY 4.0. A townland is the smallest land division of Ireland, and the unit of a rural address; old registers such as the 1901 and 1911 censuses file it under its civil parish and barony.