# Derryolam, Co. Monaghan: townland, land parcels and planning

Townland in the civil parish of Magheross, barony of Farney, Co. Monaghan; in Irish Doire Ólaim.

- Area (Tailte Éireann): 764,254 m² (76.43 ha, 188.85 acres)
- Land parcels (Tailte Éireann): 98 registered freehold parcels lie mostly in it, median 1,235 m²
- Zoning (national zoning, MyPlan): R2 Existing Residential, the zone with the most parcels
- Planning (National Planning Applications): 16 applications since 2010
- Civil parish: Magheross, https://everytownland.com/monaghan/parish/magheross.md
- Barony: Farney
- Electoral division: Carrickmacross Rural, the unit of the census
- Census 2022 (Central Statistics Office): 4,291 people lived in 1,518 households in the Carrickmacross Rural electoral division. 63% of households owned their home. 47% of homes were built since 2001. 7% of dwellings stood vacant on census night, and 1% were holiday homes.
- County: Co. Monaghan, https://everytownland.com/monaghan.md
- Placenames Database of Ireland: https://www.logainm.ie/en/39323
- Townland number at Tailte Éireann: 170698
- Centre: latitude 53.983701, longitude -6.736452 (WGS 84)

## Land parcels (registered freehold land, Tailte Éireann)

98 registered freehold parcels lie mostly in Derryolam, from 13 m² to 76,667 m² (7.67 ha, 18.94 acres); 43 neighbouring parcels touch its boundary. Largest first:

- Parcel 320485: 76,667 m² (7.67 ha, 18.94 acres), https://everytownland.com/parcel/320485.md
- Parcel 317265: 64,002 m² (6.4 ha, 15.82 acres), https://everytownland.com/parcel/317265.md
- Parcel 6121820: 53,010 m² (5.3 ha, 13.1 acres), https://everytownland.com/parcel/6121820.md
- Parcel 5153145: 47,814 m² (4.78 ha, 11.82 acres), https://everytownland.com/parcel/5153145.md
- Parcel 339675: 47,155 m² (4.72 ha, 11.65 acres), https://everytownland.com/parcel/339675.md
- Parcel 2398898: 43,252 m² (4.33 ha, 10.69 acres), https://everytownland.com/parcel/2398898.md
- Parcel 354003: 28,870 m² (2.89 ha, 7.13 acres), https://everytownland.com/parcel/354003.md
- Parcel 328209: 27,447 m² (2.74 ha, 6.78 acres), https://everytownland.com/parcel/328209.md
- Parcel 346425: 22,742 m² (2.27 ha, 5.62 acres), https://everytownland.com/parcel/346425.md
- Parcel 344388: 22,177 m² (2.22 ha, 5.48 acres), https://everytownland.com/parcel/344388.md
- Parcel 352412: 21,464 m² (2.15 ha, 5.3 acres), https://everytownland.com/parcel/352412.md
- Parcel 319470: 18,418 m² (1.84 ha, 4.55 acres), https://everytownland.com/parcel/319470.md
- Parcel 329263: 18,219 m² (1.82 ha, 4.5 acres), https://everytownland.com/parcel/329263.md
- Parcel 342629: 18,127 m² (1.81 ha, 4.48 acres), https://everytownland.com/parcel/342629.md
- Parcel 5457056: 15,489 m² (1.55 ha, 3.83 acres), https://everytownland.com/parcel/5457056.md
- Parcel 317228: 14,782 m² (1.48 ha, 3.65 acres), https://everytownland.com/parcel/317228.md
- Parcel 346086: 13,870 m² (1.39 ha, 3.43 acres), https://everytownland.com/parcel/346086.md
- Parcel 6091635: 10,588 m² (1.06 ha, 2.62 acres), https://everytownland.com/parcel/6091635.md
- Parcel 352835: 10,537 m² (1.05 ha, 2.6 acres), https://everytownland.com/parcel/352835.md
- Parcel 326133: 9,246 m² (0.92 ha, 2.28 acres), https://everytownland.com/parcel/326133.md
- Parcel 1531108: 6,212 m² (0.62 ha, 1.53 acres), https://everytownland.com/parcel/1531108.md
- Parcel 4168761: 5,767 m² (0.58 ha, 1.43 acres), https://everytownland.com/parcel/4168761.md
- Parcel 4168753: 5,191 m² (0.52 ha, 1.28 acres), https://everytownland.com/parcel/4168753.md
- Parcel 321641: 4,339 m² (0.43 ha, 1.07 acres), https://everytownland.com/parcel/321641.md
- Parcel 6121836: 4,286 m² (0.43 ha, 1.06 acres), https://everytownland.com/parcel/6121836.md
- Parcel 4168771: 4,243 m² (0.42 ha, 1.05 acres), https://everytownland.com/parcel/4168771.md
- Parcel 4626316: 4,157 m² (0.42 ha, 1.03 acres), https://everytownland.com/parcel/4626316.md
- Parcel 323614: 4,085 m² (0.41 ha, 1.01 acres), https://everytownland.com/parcel/323614.md
- Parcel 4670563: 3,926 m² (0.39 ha, 0.97 acres), https://everytownland.com/parcel/4670563.md
- Parcel 4168742: 3,737 m² (0.37 ha, 0.92 acres), https://everytownland.com/parcel/4168742.md
- Parcel 330340: 3,640 m² (0.36 ha, 0.9 acres), https://everytownland.com/parcel/330340.md
- Parcel 4128565: 3,549 m² (0.35 ha, 0.88 acres), https://everytownland.com/parcel/4128565.md
- Parcel 4168777: 3,276 m² (0.33 ha, 0.81 acres), https://everytownland.com/parcel/4168777.md
- Parcel 340398: 2,858 m² (0.29 ha, 0.71 acres), https://everytownland.com/parcel/340398.md
- Parcel 329194: 2,733 m² (0.27 ha, 0.68 acres), https://everytownland.com/parcel/329194.md
- Parcel 329437: 2,615 m² (0.26 ha, 0.65 acres), https://everytownland.com/parcel/329437.md
- Parcel 2391290: 2,510 m² (0.25 ha, 0.62 acres), https://everytownland.com/parcel/2391290.md
- Parcel 332148: 2,433 m² (0.24 ha, 0.6 acres), https://everytownland.com/parcel/332148.md
- Parcel 329155: 2,137 m² (0.21 ha, 0.53 acres), https://everytownland.com/parcel/329155.md
- Parcel 344253: 2,118 m² (0.21 ha, 0.52 acres), https://everytownland.com/parcel/344253.md
- Parcel 2391286: 2,060 m² (0.21 ha, 0.51 acres), https://everytownland.com/parcel/2391286.md
- Parcel 5924768: 1,991 m², https://everytownland.com/parcel/5924768.md
- Parcel 328001: 1,909 m², https://everytownland.com/parcel/328001.md
- Parcel 327375: 1,848 m², https://everytownland.com/parcel/327375.md
- Parcel 322839: 1,842 m², https://everytownland.com/parcel/322839.md
- Parcel 4168740: 1,762 m², https://everytownland.com/parcel/4168740.md
- Parcel 338894: 1,495 m², https://everytownland.com/parcel/338894.md
- Parcel 340244: 1,372 m², https://everytownland.com/parcel/340244.md
- Parcel 334017: 1,366 m², https://everytownland.com/parcel/334017.md
- Parcel 333987: 1,105 m², https://everytownland.com/parcel/333987.md
- Parcel 332822: 1,099 m², https://everytownland.com/parcel/332822.md
- Parcel 333618: 1,055 m², https://everytownland.com/parcel/333618.md
- Parcel 6049569: 1,029 m², https://everytownland.com/parcel/6049569.md
- Parcel 4893601: 1,014 m², https://everytownland.com/parcel/4893601.md
- Parcel 334323: 1,008 m², https://everytownland.com/parcel/334323.md
- Parcel 4626305: 805 m², https://everytownland.com/parcel/4626305.md
- Parcel 345421: 766 m², https://everytownland.com/parcel/345421.md
- Parcel 346518: 581 m², https://everytownland.com/parcel/346518.md
- Parcel 346056: 544 m², https://everytownland.com/parcel/346056.md
- Parcel 335054: 533 m², https://everytownland.com/parcel/335054.md
- Parcel 333743: 527 m², https://everytownland.com/parcel/333743.md
- Parcel 327724: 524 m², https://everytownland.com/parcel/327724.md
- Parcel 324843: 523 m², https://everytownland.com/parcel/324843.md
- Parcel 328406: 522 m², https://everytownland.com/parcel/328406.md
- Parcel 325052: 515 m², https://everytownland.com/parcel/325052.md
- Parcel 343031: 512 m², https://everytownland.com/parcel/343031.md
- Parcel 345792: 508 m², https://everytownland.com/parcel/345792.md
- Parcel 340764: 496 m², https://everytownland.com/parcel/340764.md
- Parcel 331150: 489 m², https://everytownland.com/parcel/331150.md
- Parcel 5924766: 464 m², https://everytownland.com/parcel/5924766.md
- Parcel 342440: 460 m², https://everytownland.com/parcel/342440.md
- Parcel 331388: 444 m², https://everytownland.com/parcel/331388.md
- Parcel 341802: 443 m², https://everytownland.com/parcel/341802.md
- Parcel 325615: 441 m², https://everytownland.com/parcel/325615.md
- Parcel 6049521: 426 m², https://everytownland.com/parcel/6049521.md
- Parcel 341449: 425 m², https://everytownland.com/parcel/341449.md
- Parcel 331555: 396 m², https://everytownland.com/parcel/331555.md
- Parcel 6049495: 381 m², https://everytownland.com/parcel/6049495.md
- Parcel 1531107: 373 m², https://everytownland.com/parcel/1531107.md
- Parcel 6049572: 329 m², https://everytownland.com/parcel/6049572.md
- Parcel 334045: 328 m², https://everytownland.com/parcel/334045.md
- Parcel 343466: 320 m², https://everytownland.com/parcel/343466.md
- Parcel 6049517: 313 m², https://everytownland.com/parcel/6049517.md
- Parcel 333881: 313 m², https://everytownland.com/parcel/333881.md
- Parcel 332887: 300 m², https://everytownland.com/parcel/332887.md
- Parcel 333407: 298 m², https://everytownland.com/parcel/333407.md
- Parcel 342039: 296 m², https://everytownland.com/parcel/342039.md
- Parcel 337278: 284 m², https://everytownland.com/parcel/337278.md
- Parcel 332788: 274 m², https://everytownland.com/parcel/332788.md
- Parcel 342963: 270 m², https://everytownland.com/parcel/342963.md
- Parcel 342383: 261 m², https://everytownland.com/parcel/342383.md
- Parcel 317580: 227 m², https://everytownland.com/parcel/317580.md
- Parcel 6049508: 174 m², https://everytownland.com/parcel/6049508.md
- Parcel 330472: 150 m², https://everytownland.com/parcel/330472.md
- Parcel 332845: 145 m², https://everytownland.com/parcel/332845.md
- Parcel 336900: 123 m², https://everytownland.com/parcel/336900.md
- Parcel 334992: 120 m², https://everytownland.com/parcel/334992.md
- Parcel 332233: 13 m², https://everytownland.com/parcel/332233.md

## Zoning (national zoning of development plans, MyPlan)

- R2 Existing Residential (Existing residential): Monaghan County Development Plan 2025-2031, Monaghan; 44 parcels. The zoning objective in the plan: https://monaghan.ie/planning/wp-content/uploads/sites/4/2025/06/Monaghan-County-Development-Plan-2025-2031-Written-Statement-compressed-files.pdf#page=235
- C2.1 Industry/Enterprise/Employment (Industrial, enterprise, employment): Monaghan County Development Plan 2025-2031, Monaghan; 7 parcels. The zoning objective in the plan: https://monaghan.ie/planning/wp-content/uploads/sites/4/2025/06/Monaghan-County-Development-Plan-2025-2031-Written-Statement-compressed-files.pdf#page=235
- G3 Landscape Protection/Conservation (Conservation, amenity or buffer space, corridor/belt, landscape): Monaghan County Development Plan 2025-2031, Monaghan; 4 parcels. The zoning objective in the plan: https://monaghan.ie/planning/wp-content/uploads/sites/4/2025/06/Monaghan-County-Development-Plan-2025-2031-Written-Statement-compressed-files.pdf#page=235
- S5 Community Services/Facilities (Mixed/general community services/facilities uses): Monaghan County Development Plan 2025-2031, Monaghan; 1 parcel. The zoning objective in the plan: https://monaghan.ie/planning/wp-content/uploads/sites/4/2025/06/Monaghan-County-Development-Plan-2025-2031-Written-Statement-compressed-files.pdf#page=235

## Planning applications whose site touches the townland (National Planning Applications, Department of Housing, Local Government and Heritage)

16 applications, newest first.

- 29 May 2026, Monaghan County Council 2660223: N/a. Permission, 1 home. permission for the construction of an additional two-storey dwelling and associated site works, in addition to that previously approved under Planning Ref. 24/60415, at Derryolam Glebe House, a Protected Structure (Monaghan County Development Plan Ref. No. 41300361 / NIAH Reg. No. 41310001). File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/2660223/0
- 19 May 2026, Monaghan County Council 2660201: N/a. Permission, 1 home. permission for the construction of an additional two-storey dwelling and associated site works, in addition to that previously approved under Planning Ref. 24/60415, at Derryolam Glebe House, Protected Structure (Monaghan County Development Plan Ref. No. 41300361 / NIAH Reg. No. 41310001). File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/2660201/0
- 9 Dec 2025, Monaghan County Council 2560491: N/a. Permission, 1 home. permission for the construction of an additional two-storey dwelling and associated site works, in addition to that previously approved under Planning Ref. 24/60415, at Derryolam Glebe House, a Protected Structure (Monaghan County Development Plan Ref. No. 41300361 / NIAH Reg. No. 41310001). File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/2560491/0
- 2 Dec 2025, Monaghan County Council 2560480: N/a. Permission, 1 home. permission for the construction of an additional two-storey dwelling and associated site works, in addition to that previously approved under Planning Ref. 24/60415, at Derryolam Glebe House, a Protected Structure (Monaghan County Development Plan Ref. No. 41300361 / NIAH Reg. No. 41310001). File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/2560480/0
- 15 Nov 2024, Monaghan County Council 2460415: Conditional. Permission, 1 home. permission for the following, relating to Derryolam Glebe House, a protected structure in the Monaghan County Council Development Plan Ref. No. 41300361 and the NIAH Reg. No. 41310001: (I) Change of use of existing three and a half storey office building to residential use providing 4 no. two bed apartments together with all ancillary alterations, refurbishments & bin & bicycle storage (II) Refurbishment of existing two-storey derelict outbuilding to incorporate 2 no. two-storey semi-detached three-bedroom dwellings, to include a single-storey extension to the front elevation together with all ancillary alterations and refurbishments; (III) Construction of 4no. two-storey four-bedroom dwellings, (IV) Alterations of courtyard access to include relocation of stone pier, (V) Alterations of existing vehicular entrance and access road to include widening and set back of stone piers & gates, from the public road; (VI) Connection to public foul drainage with storm drainage to be accommodated within site boundaries; (VII) Open space, boundary treatments and all associated site works. Significant Further Information received relates to amended house positions, amended street lighting design, Architectural Heritage Impact Assessment, Arboricultural Survey, amended Road Safety Audit, Hydrological Report, and Flood Risk Assessment.. File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/2460415/0
- 29 Sept 2023, Monaghan County Council 239014: Refused. Extension of duration. Permission for demolition of an existing two storey extension to spire view house and replacement with a new two storey extension, construct a new three storey detached house, provision of a new vehicular entrance, parking and all ancillary site works. File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/239014/0
- 18 Aug 2023, Monaghan County Council 2360172: Conditional. Permission. permission for a development consisting of a small first floor extension over existing single storey structure to the east elevation of the existing factory including all ancillary & associated siteworks. File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/2360172/0
- 31 May 2023, Monaghan County Council 2360092: Conditional. Permission. permission to construct a single storey extension to the front of the existing dwelling, construction of a single storey extension to the rear of the existing dwelling, alterations and additions to elevations and all associated site development works. Significant further information relates to the submission of a flood risk assessment. File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/2360092/0
- 31 May 2023, Monaghan County Council 2360093: N/a. Permission, 1 home. permission for development consisting of change of use of existing 4 storey office building to 4 No. apartments consisting of 3 No. two-bed apartments and 1 no. Studio apartment; refurbishment of existing two-storey derelict stone stables to incorporate 2 no. two-storey semi-detached 2-bedroom dwellings, relocation of 1 no. courtyard stone pier to provide 4.8m access to courtyard, access using existing entrance and laneway; connection to existing public foul drainage; provision of storm drainage within site boundaries; and all associated site works. Derryolam Glebe House is a protected structure.. File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/2360093/0
- 13 Jan 2022, Monaghan County Council 2211: N/a. Permission, 1 home. Construct 5 No. dwelling unit incorporating 2 No. two-storey 4 bed detached dwellings (Type A), 3 No. two-storey 4 bed detached dwellings (Type B), reuse of existing pedestrian access onto Shercock Road, provision of a new independent vehicle entrance, new service road, all ancillary works including boundary fencing, footpaths and street lighting, connection to existing public foul drainage, provision of new attenuation system for storm drainage and all associated site works. The existing building is listed as a Protected Structure In the Monaghan County Council Development Plan Ref. No. 41300361 and the NIAH Reg. No. 41310001. Significant further information received in relation to revisions to boundaries, reduction in house numbers from 5 no. to 2 no. two-storey dwellings, revised site layout, use of existing vehicle entrance and all associated site works. File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/2211/0
- 19 Nov 2020, Monaghan County Council 20499: Refused. Permission, 1 home. permission to construct 18 no. dwelling units incorporating:-(i) Change of use of existing 4 storey office building to 4 No. apartments consisting of 3 no. two-bed apartments and 1 no. studio apartment; (ii) 1 no. two storey 3 bed detached dwelling (Type A); (iii) 4 no. two storey 3 bed semi-detached dwelings (Type B); (iv) 4 no. two storey 4 bed semi-detached dwellings (Type C); (v) 5 no. two-storey 2 bed terraced dwellings (Type D); demolition of existing derelict stone shed; reuse of existing pedestrian access onto Shercock Road; widening of existing vehicle entrance; new service roads; car parking; all ancillary works including boundary fencing, footpaths and street lighting; connection to existing public foul drainage; provision of new attenuation system for storm drainage; and all associated site works, The existing building is listed as a Protected Structure in the Monaghan County Council Development Plan ref. no. 41300361 and the NIAH reg no. 41310001. File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/20499/0
- 11 Sept 2019, Monaghan County Council 19428: Conditional. Permission. permission for a development consisting of the construction of a single storey, 5-bay portal framed machinery workshop building, as well as all associated site works.. File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/19428/0
- 15 Aug 2019, Monaghan County Council 19381: Conditional. Outline permission, 1 home. outline permission for a dwelling house, a domestic garage with connections to all public services and all associated site works.. File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/19381/0
- 12 Jul 2018, Monaghan County Council 18324: Conditional. Permission, 1 home. Permission for demolition of an existing two storey extension to spire view house and replacement with a new two storey extension, construct a new three storey detached house, provision of a new vehicular entrance, parking and all ancillary site works. File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/18324/0
- 6 Mar 2018, Monaghan County Council 1885: Conditional. Permission. Permission to construct a new agricultural machine shed and all associated siteworks. File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/1885/0
- 21 Feb 2017, Monaghan County Council 179002: Conditional. Extension of duration. Erection of a two storey dwelling, detached domestic garage, effluent treatment system, percolation area, the provision for new agricultural entrance to North West of proposed site and all associated site development drainage works.. File: https://www.eplanning.ie/MonaghanCC/AppFileRefDetails/179002/0

Applicants are not shown.

## Designated sites (National Parks and Wildlife Service)

- Proposed Natural Heritage Area: Nafarty Fen, site code 002077

## Recorded monuments (Sites and Monuments Record, National Monuments Service)

- MO031-008: Ringfort - rath, https://heritagedata.maps.arcgis.com/apps/webappviewer/index.html?id=0c9eb9575b544081b0d296436d8f60f8&query=18a4b61b268-layer-9%2CSMRS%2CMO031-008----. Located on the spine of a fairly low NW-SE ridge. It is depicted as an embanked enclosure (ext. diam. c. 30m) and described as a 'fort' in gothic lettering on the 1834 edition of the OS 6-inch map, but is not shown on later maps. No archaeological feature is visible at ground level in pasture. The above description is derived from the published 'Archaeological Inventory of County Monaghan' (Dublin: Stationery Office, 1986). In certain instances the entries have been revised and updated in the light of recent research. Date of revision: 28 July 2017
- MO031-030: Ringfort - rath, https://heritagedata.maps.arcgis.com/apps/webappviewer/index.html?id=0c9eb9575b544081b0d296436d8f60f8&query=18a4b61b268-layer-9%2CSMRS%2CMO031-030----. Situated at the crest of the SE end of a NW-SE drumlin ridge. This is a raised circular grass-covered area (diam. 37m N-S; 37m E-W) defined by an overgrown scarp (Wth 2-2.5m; H 1.3-1.5m), with indications of a bank on top SE-S and WSW-NW (at W: Wth 2m; int. H 0.2m). There are slight traces of an outer fosse (Wth c. 3m; D 0.2m) SE-W-NW that morphs into a farm track NW-NE and a berm NE-SE. The original entrance is not identified. The interior has become overgrown since 1967 (Bing 2013). The above description is derived from the published 'Archaeological Inventory of County Monaghan' (Dublin: Stationery Office, 1986). In certain instances the entries have been revised and updated in the light of recent research. Date of revision: 28 July 2017

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).

## Architectural heritage (National Inventory of Architectural Heritage)

- Derryolam House, rectory/glebe/vicarage/curate's house, 1775–1785, Regional interest, registry number 41310001, https://www.buildingsofireland.ie/niah/search.jsp?type=record&county=MO&regno=41310001. Detached five-bay two-storey former rectory with over raised basement and having dormer attic, built c.1780, with single-bay two-storey stairs return to rear, having flat-roofed single-bay two-storey addition to south side of latter. Pitched slate roof having red brick chimneystacks and cast-iron rainwater goods. Skylights to roof. Red brick walls to front elevation having corbelled out brick eaves courses, tooled limestone course to ground floor plinth, with roughcast render to basement, rear elevation and gables. Lead fire mark with number above front door. Roughcast rendered arch over basement passage to front elevation. Square-headed window openings having stone sills, with timber sliding sash windows with ogee horns, six-over-six pane to front elevation and most of rear, three-over-three to attic windows. Round-headed window openings to rear return having stone sills and six-over-six pane timber sliding sash windows with ogee horns and spoked and cobweb fanlights. Some recent windows to rear elevation. Cut limestone Doric doorcase comprising engaged columns with plinths and capitals, triglyphs above, and supporting open-bed pediment. Round-headed doorway having raised and fielded timber panelled double-leaf door with 'spoked' fanlight. Flight of sandstone steps with recent metal railings leading to front entrance. Square-headed door opening to rear elevation having timber and glazed door. House is set within its own grounds, with detached five-bay two-storey stable block with lean-to end bays, hipped slate roof, roughcast rendered walls and square-headed doors and windows and camber-headed vehicular entrances, to west of house, with plaque inscribed 'Built by Rev. Dr Robinson 1857'. Outbuilding approached through gateway with round-plan coursed rubble stone piers and metal gate. Gateway to road has square-plan coursed rubble stone piers, approached over low two-arch bridge, and rubble stone boundary walls.

## Ground and risks (Radon Risk Map of Ireland, EPA; Landslide Susceptibility Classification and LiDAR, Geological Survey Ireland)

- Radon: at the centre of the townland of Derryolam, about 1 in 5 homes in this area is likely to have high radon levels. Testing a home: https://www.epa.ie/environment-and-you/radon/radon-testing/#d.en.82887
- Landslides: The 1:50,000 map rates the landslide susceptibility here as moderately high, moderately low, low, partly inferred. Parts of the land are made ground and water.
- Terrain model: LiDAR of the Office of Public Works, flown in 2011, at 2 m: tile OPW_2637, https://gsi.geodata.gov.ie/downloads/LiDAR/OPW_NASC/OPW_2637.zip (ZIP).
- Flooding: the flood maps of the Office of Public Works, https://www.floodinfo.ie/map/floodmaps/, linked only: their licence does not allow re-use.

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.

## Downloads

- DXF, in Irish Transverse Mercator metres, with its boundary, parcels and buildings, for a drawing program: https://everytownland.com/monaghan/derryolam.dxf
- GeoJSON, in WGS 84, for a map: https://everytownland.com/monaghan/derryolam.geojson
- KML, for Google Earth: https://everytownland.com/monaghan/derryolam.kml

## Homes sold (Residential Property Price Register)

No address of the register names Derryolam with five sales or more. The sales of the area are on the page of Co. Monaghan: https://everytownland.com/monaghan.md

## Neighbouring townlands (National Statutory Boundaries, Tailte Éireann)

- Aghalile: https://everytownland.com/monaghan/aghalile.md
- Drummond Etra: https://everytownland.com/monaghan/drummond-etra.md
- Legghimore: https://everytownland.com/monaghan/legghimore.md
- Lurgans: https://everytownland.com/monaghan/lurgans.md
- Mullanarry: https://everytownland.com/monaghan/mullanarry.md
- Nafarty: https://everytownland.com/monaghan/nafarty.md

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.

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Everytownland reads the registered freehold land and the statutory boundaries of Tailte Éireann, the national zoning, planning file and heritage records of the Department of Housing, Local Government and Heritage, and the Residential Property Price Register. A parcel is the land of a title, not an address. The owner's name is in the Land Registry of Tailte Éireann: a copy of the folio can be ordered on landdirect.ie, for a fee; this site names no owner. A price is the price recorded for a past sale, not a valuation.

Sources: Cadastral Parcels Freehold, Townlands, Civil Parishes, Baronies, Electoral Divisions and Buildings, Tailte Éireann, CC BY 4.0; national zoning of development plans (GZT, MyPlan) and National Planning Applications, Department of Housing, Local Government and Heritage, CC BY 4.0, applicants not shown; designated sites, National Parks and Wildlife Service, CC BY 4.0; Sites and Monuments Record, National Monuments Service, CC BY 4.0; National Inventory of Architectural Heritage, CC BY 4.0; Residential Property Price Register, Property Services Regulatory Authority, re-used with the source acknowledged.

- Page: https://everytownland.com/monaghan/derryolam
- In JSON: https://everytownland.com/api/townland/monaghan/derryolam