Derroon

52 registered freehold parcels lie mostly in Derroon, from 27 m² to 41,789 m² (4.18 ha, 10.33 acres). The dashed line is the townland's boundary. 14 neighbouring parcels touch it.

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

• G3GB – green belt (Conservation, amenity or buffer space, corridor/belt, landscape)
  Sligo County Development Plan 2024-2030, Sligo · 3 parcels The zoning objective in the plan

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

• 18 May 2026N/a

  Construct an Agricultural Storage Shed intended for the storing of feed and equipment related to the keeping of horses with associated site works, and the Retention of Existing Entrance gate

  Permission · Sligo County Council, 2660186

• 21 Mar 2026N/a

  Permission to construct a new storage shed and associated site works

  Permission · Sligo County Council, 2660107

• 23 Jul 2020Conditional

  development consisting of retention and completion of the agricultural entrance to my lands, to retain the hardstanding area and all ancillary site works

  Permission · Sligo County Council, 20243

• 6 Jul 2020Conditional

  development consisting of the construction of an agricultural entrance

  Permission · Sligo County Council, 20204

• 16 Jun 2020N/a

  Development consisting of retention of existing agricultural entrance to my lands and all ancillary site works

  Retention · Sligo County Council, 2079

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

Designated sites

No designated site (Special Area of Conservation, Special Protection Area, Natural Heritage Area or proposed one) touches the townland of Derroon.

Recorded monuments

• SL033-046001 Ringfort - rath
  Description

  In pasture, on a slight E-facing slope on top of a ridge. A raised circular area (33m N-S; 32m E-W) defined by an inner earth and stone bank, an intervening fosse and an outer earthen bank. The inner earthen bank (int. H 0.7m; Ext. H 1.95m) encloses the interior WSW-ENE and SE-SSW. The inner bank has been quarried away SSW-WSW and eroded by cattle breaks at NW (Wth 6m), at N (Wth 4m) and at S (Wth 4m). The break at S has a slight causeway across the fosse caused by outward slumping of the inner bank. There is a possible entrance at E (Wth 7m) with an adjacent area to S disturbed by quarrying. The intervening fosse (Wth 3m at base) and the outer earthen bank (int. H 0.85m; ext. H. 0.55m) are evident SE-NE. A field boundary truncates the outer bank NE-SE, a second field boundary abuts the external face of the outer bank along the W arc. The interior is undulating and strewn with rocks and slopes gently down to E. Some of the undulations may be the result of quarrying. A small rectangular earthwork is located just outside the outer bank at NNE. This earthwork consists of a raised rectangular area (4m N-S; 4.7m E-W) defined by an earth and stone bank (int. H 0.3m; ext. H 0.45m). The interior is slightly concave in profile and clear of overgrowth. On the SE side of this earthwork, outside the base of the bank at the SE corner, a shallow drain (D 0.3m) with an earthen bank (H 0.45m) on its N side (both orientated E-W) has been dug extending E to a field boundary. Roughly 1.5m to the W of the rectangular earthwork is a series of low earth and stone mounds (diam. 1.5-2.5m; H 0.8-1m). A low earthen bank (ext. H 0.25m) which runs parallel to the W edge of the rectangular earthwork defines the limit of these mounds on the E side. The above description is derived from the published 'Archaeological Inventory of County Sligo' compiled by Ursula Egan, Elizabeth Byrne, Mary Sleeman with Sheila Ronan and Connie Murphy (Dublin Stationery Office, 2005). Date of upload: 18 January 2008

• SL033-046002 Mound
  Description

  A small rectangular earthwork is located just outside the outer bank of Derroon rath (SL033-046001-) at NNE. This earthwork consists of a raised rectangular area (4m N-S; 4.7m E-W) defined by an earth and stone bank (int. H 0.3m; ext. H 0.45m). The interior is slightly concave in profile and clear of overgrowth. On the SE side of this earthwork, outside the base of the bank at the SE corner, a shallow drain (D 0.3m) with an earthen bank (H 0.45m) on its N side (both orientated E-W) has been dug extending E to a field boundary. Roughly 1.5m to the W of the rectangular earthwork is a series of low earth and stone mounds (diam. 1.5-2.5m; H 0.8-1m). A low earthen bank (ext. H 0.25m) which runs parallel to the W edge of the rectangular earthwork defines the limit of these mounds on the E side. Compiled by: Archaeological Survey Unit, UCC with revisions by Patrick F. O'Donovan and Paul Walsh Date of upload: 20 June 2011

• SL033-048 Barrow - ring-barrow
  Description

  In gently undulating pasture on level ground. A roughly circular area (diam. 2.8m) defined by a fosse and an outer earthen bank. The interior consists of firm undisturbed ground while the fosse is clearly evident as a band of soft ground (Wth 1.7m) N-SW but less distinct SW-N. The bank (Wth 2.9m; int. H 0.3m; ext. H 0.4m) is evident all round with a break at W (Wth 2.4m). Another ring-barrow (SL033-199----) lies c. 100m to WSW and a bowl-barrow (SL033-049----) c. 50m to NE. The above description is derived from the published 'Archaeological Inventory of County Sligo' compiled by Ursula Egan, Elizabeth Byrne, Mary Sleeman with Sheila Ronan and Connie Murphy (Dublin Stationery Office, 2005). Date of upload: 18 January 2008

• SL033-049 Barrow - bowl-barrow
  Description

  In gently undulating pasture, on a slight W-facing slope. A large roughly circular dome-shaped mound (36m N-S; 40m E-W) defined by a fosse and an external earthen bank. The fosse (Wth 4.1m at base; Wth 8.95m at top) is evident all round and is densely overgrown and inaccessible E-W. The bank (int. H 0.85m to base of fosse; ext. H 1.1m) is evident all round, is incorporated into the field boundary system SE-SW and is densely overgrown and inaccessible E-W. The apex of the domed mound is slightly off-centre to S and is 4.1m higher than the top of the fosse. A disused quarry is situated outside the bank at NNE. This barrow appears to be formed around a natural hillock that has been modified to create a large earthwork. A ring-barrow (SL033-048----) lies c. 60m to SW and another (SL033-199----) c. 150m to SW. The above description is derived from the published 'Archaeological Inventory of County Sligo' compiled by Ursula Egan, Elizabeth Byrne, Mary Sleeman with Sheila Ronan and Connie Murphy (Dublin Stationery Office, 2005). Date of upload: 18 January 2008

• SL033-050 Barrow - bowl-barrow
  Description

  In gently undulating pasture, on a slight E-facing slope. A conical grass-covered mound (diam. 9m; H 2m). A slight lip is visible around the base of the mound NNE-S, consisting of a level terrace (Wth 1.2m; ext. H 0.25m). At S the mound has been dug into revealing a compact sod layer and a shattered stone and clay core (pers. comm. J. Farrelly and M. Keane). Known locally as 'Corran'. A ring-barrow (SL033-051----) lies c. 50m to ENE. The above description is derived from the published 'Archaeological Inventory of County Sligo' compiled by Ursula Egan, Elizabeth Byrne, Mary Sleeman with Sheila Ronan and Connie Murphy (Dublin Stationery Office, 2005). Date of upload: 18 January 2008

• SL033-051 Barrow - ring-barrow
  Description

  In gently undulating pasture, on the E side of the summit of a low broad ridge. A circular flat-topped mound (diam. 12.6m at base, 8m at top) surrounded by a fosse (Wth 2.4m at base) and an external earth and stone bank (Wth 5.6m; int. H 1.05m; ext. H 0.3m). The mound rises 1.35m above the base of the fosse. Recorded in 1836 as 'Sídheán a'Gháire' (OSL, 423), a translation of which was given in Wood-Martin (1887-8, 269) as 'the Fairy Mount of Laughter'. A bowl-barrow (SL033-050----) lies c. 50m to WSW. The above description is derived from the published 'Archaeological Inventory of County Sligo' compiled by Ursula Egan, Elizabeth Byrne, Mary Sleeman with Sheila Ronan and Connie Murphy (Dublin Stationery Office, 2005). This ring-barrow was severely damaged by land reclamation work in April 2006: the enclosing bank was levelled, the fosse infilled and several pits dug through the central mound. A rescue excavation (06E0720) was undertaken over three weeks in August 2006 by Margaret Keane, National Monuments Service (Keane 2009, 469, no. 1770). The excavation concentrated on the western side of the crest of the mound, and in addition a single trench was excavated across the fosse and external bank. The excavation of the fosse revealed that it was originally c. 2.5m wide at the top and c. 0.9m deep, with a sharply cut external edge, a rounded base, and a shallower profile on the internal mound side. A single post-hole was recorded just inside the edge of the mound crest. On the crest of the mound, the upper deposits consisted of spreads of charcoal-rich soils, with burnt bone and occasional artefacts interleaving with a spread of compact white/grey silt. Burnt material spread across the site may represent rakings of funeral pyre material. Beneath these layers, were a cluster of eight pits (max. dims. 0.3-1.3m) filled with deposits of burnt bone, in a clayey matrix with occasional artefacts. The interior edges of some of the pits were significantly charred. The most impressive pit (D c. 0.5m) had a basal deposit of cremated bone, and upper fills rich in charcoal and burnt bone. Artefacts recovered include ten glass beads or bead fragments, two unperforated glass beads/toggles, a single copper alloy spiral ring, five copper alloy pins, a copper alloy rod, copper alloy fragments, iron fragments, pieces of slag, worked flint and chert. (Keane 2009, 469, no. 1770). Date of revised upload: 10 March 2016

• SL033-168 House - 16th/17th century
  Description

  According to MacDonagh (1936, 197) this ruin is 'the remains of the fortified house' built by Jasper Brett; Brett was High Sheriff of Sligo in 1627-28 and 1635 (O'Dowd 1991, 58). Access to the ruined structure, which is known locally as a 'castle', was denied by the landowner but it was observed from the roadside. It consists of a SW gable wall (L 10.35m; T 0.25-0.45m) and returns of the NW (L 6.5m) and SE (L 3.1m) walls, of a two-storey house (wall measurements in Flynn 2003). The walls (H c. 5m) are of random mortared rubble with undressed corner quoins. Some red brick was also noted in the fabric of the walls, particularly at the broken ends of the NW and SE walls. No window embrasures survive. Joist-holes are visible on the inner face of the gable wall c. 2.5m above ground level. A lean-to shed stands against the external face of the gable wall. A series of low earthworks, evident immediately to the NE, E and S of the ruin, may be the remains of a bawn or structures associated with the house. The above description is derived from the published 'Archaeological Inventory of County Sligo' compiled by Ursula Egan, Elizabeth Byrne, Mary Sleeman with Sheila Ronan and Connie Murphy (Dublin Stationery Office, 2005). Date of upload: 18 January 2008

• SL033-199 Barrow - ring-barrow
  Description

  In pasture, on the top of and on the W edge of a ridge. A subcircular flat area (diam. 7.5m) defined by a fosse (Wth 2m; D 0.6m) with the remains of an external earthen bank (Wth 2m; ext. H 0.4m). There is a causeway (Wth 2m) across the fosse at NE. The barrow is overgrown with furze bushes. A ring-barrow (SL033-048----) is c. 100m to ENE and a bowl-barrow (SL033-049----) c. 150m to NE. The above description is derived from the published 'Archaeological Inventory of County Sligo' compiled by Ursula Egan, Elizabeth Byrne, Mary Sleeman with Sheila Ronan and Connie Murphy (Dublin Stationery Office, 2005). Date of upload: 18 January 2008

Architectural heritage

No building of the National Inventory of Architectural Heritage stands in the townland of Derroon.

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

At the centre of the townland of Derroon, about 1 in 5 homes in this area is likely to have high radon levels. Testing a home

Landslides

The 1:50,000 map rates the landslide susceptibility here as moderately low, low, partly inferred.

Terrain model

LiDAR of the Office of Public Works, flown in 2011, at 2 m: tile OPW_1038 (ZIP).

Flooding

The Office of Public Works publishes its flood maps on floodinfo.ie.

Radon Risk Map of Ireland, Environmental Protection Agency, and Landslide Susceptibility Classification, Geological Survey Ireland, both under 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 Derroon with five sales or more. The sales of the area are on the page of Co. Sligo.

Name

Derroon · Dorún

Area

685,788 m² (68.58 ha, 169.46 acres)

Civil parish

Emlaghfad, and its townlands

Barony

Corran

Electoral division

Ballymote, the unit of the census

Census 2022

2,269 people lived in 927 households in the Ballymote electoral division. 64% of households owned their home. 46% of homes were built since 2001. 15% of dwellings stood vacant on census night, and 3% were holiday homes.

Neighbouring townlands

Camross, Carrigans Upper, Carrowcauly or Earlsfield, Rathdoony Beg, Rathdoony More, Stoneparks

Placenames

Derroon 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.