Gortnasillagh
Gortnasillagh is a townland in the civil parish of Baslick, barony of Castlereagh, Co. Roscommon.
- Area
- 171.4 ha
- 423 acres
- Land parcels
- 32
- registered freehold, median 29,637 m² (2.96 ha, 7.32 acres)
- Zoning
- —
- not in a zoned settlement
- Planning
- 4
- applications since 2010
Land parcels
Registered freehold land, Tailte Éireann
32 registered freehold parcels lie mostly in Gortnasillagh, from 127 m² to 175,594 m² (17.56 ha, 43.39 acres). The dashed line is the townland's boundary. 28 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.
Zoning
Development plans, national zoning
No zone of a development plan covers Gortnasillagh in the national zoning. Outside zoned towns and villages, the county development plan's rural policies apply to each application.
Source: Tailte Éireann and the Department of Housing (MyPlan), national zoning, CC BY 4.0.
Planning applications
Sites that touch the townland, newest first
13 Jun 2025Conditional
Permission for proposed installation of an onsite sewerage system with polishing filter in accordance with EPA Code of Practice 2021 to service existing dwelling house and all ancillary works at
Permission · Roscommon County Council, 2560283
21 Jul 2021Conditional
Permission for a change of house type for the construction of a single storey dwelling house, entrance pillars and gates and associated siteworks from that previously granted permission under planning reference number PD/20/165 at
Permission, 1 home · Roscommon County Council, 21415
7 May 2020Conditional
for demolition of the existing two storey dwelling house and outhouses with construction of single storey replacement dwelling house, provision of a new vehicular entrance with the existing entrance being closed and the installation of a new wastewater treatment plant, percolation area, soakpit with all associated site works at
Permission, 1 home · Roscommon County Council, 20165
4 Mar 2020N/a
the demolition of the existing two storey dwelling house and outhouses with construction of a single storey replacement dwelling house, provision of a new vehicular entrance with the existing entrance being closed and the installation of a new water treatment plant, percolation area, soakpit with all associated site works at
Permission · Roscommon County Council, 2091
Source: National Planning Applications, Department of Housing, Local Government and Heritage, CC BY 4.0. Applicants are not shown.
Nature and heritage
Designated sites and recorded monuments
Designated sites
No designated site (Special Area of Conservation, Special Protection Area, Natural Heritage Area or proposed one) touches the townland of Gortnasillagh.
Recorded monuments
- RO021-069001 Field system
Description
On a level landscape. An area of c. 17 ha (c. 42 acres) contains relict field banks creating rectangular fields (dims c. 50m x 100m to c. 100m x 200m) defined by earthen banks (Wth c. 2m; H c. 0.4m). Also within the area are lines of pits (RO021-069003-) (dims c. 10m x 2m; D 0.3m) aligned E-W which are placed c. 10-30m apart, the lines being c. 30-40m apart. At the S edge of the fields there is an E-W roadway (RO021-069002-) (Wth 6-8m; surviving L c. 200m) defined by earth and stone banks (Wth 1.5-2m; int. H 0.4m; ext. H 0.6-0.8m). A drystone wall and townland boundary with Gortnasillagh is its N boundary. It is indicated as extending c. 300m further W on the 1837 OS 6-inch map, and it would have met road (RO027-013----) c. 350m E of the surviving section. Attached to the road on the N side is a rectangular enclosure (RO021-069004-) (int. dims 29.5m E-W; 19m N-S) defined by earth and stone banks (Wth 2.3-2.7m; int. H 0.4-0.7m; ext. H 0.4-1m) and a silted fosse or drain (Wth c. 2m; D 0.2-0.5m) on all sides except the S. There is local knowledge of a church site (RO021-069005-) S of the roadway in Glenvela in an area which is now reclaimed. Compiled by: Michael Moore Date of upload: 24 August 2010
- RO021-069003 Pitfield
Description
On a level landscape. Also within the area of field system (RO021-069001-) are lines of pits (dims c. 10m x 2m; D 0.3m) aligned E-W which are placed c. 10-30m apart, the lines being c. 30-40m apart. Compiled by: Michael Moore Date of upload: 24 August 2010
- RO021-069004 Enclosure
Description
On a level landscape. Attached to the road (RO021-069002-) at N is a rectangular area (int. dims 29.5m E-W; 19m N-S) defined by earth and stone banks (Wth 2.3m-2.7m; int. H 0.4m-0.7m; ext. H 0.4m-1m) and a silted fosse or drain (Wth c. 2m; D 0.2m-0.5m) on all sides except the S. Compiled by: Michael Moore Date of upload: 24 August 2010
- RO021-074002 Pitfield
Description
On a level landscape. A area of c. 9 ha, which is now largely reclaimed contained pits and earthworks, but apart from the known surviving enclosures there is hardly anything visible at ground level in pasture. Compiled by: Michael Moore Date of upload: 24 August 2010
- RO021-079 Ringfort - rath
Description
Visible as a subcircular enclosure (diam. c. 40m) defined by an earthen bank and fosse on aerial photographs (ACAP: V206/10-11), and situated on a slight rise in a level landscape. It is not now visible at ground level in reclaimed pasture. Compiled by: Michael Moore Date of upload: 24 August 2010
- RO021-080 Ringfort - rath
Description
Just off the NE-facing slope of a slight NW-SE ridge. Circular grass-covered platform (diam. 24.3m ENE-WSW; 22.8m WNW-ESE; H 1.7m at E to 2.2-2.7m generally) defined by a flat-bottomed fosse (Wth of top 7.6-8.7m; Wth of base 3-4m; D 0.4-0.9m), and a slight outer bank (Wth 4m; H 0.1-0.2m) S-NNW. There are traces of the fosse NNW-ENE (max. ext. diam. 44.5m ENE-WSW), but there is no identifiable original entrance. A WNW-ESE field bank and hedge overlie the base of the platform at N, and the SE quadrant has been quarried (D 0.6-1m). Described as a ring-barrow (Herity 1983, 137). Compiled by: Michael Moore Date of upload: 24 August 2010
- RO021-082 Pitfield
Description
Visible on aerial photographs (ACAP: V206/11, 12) and situated on a plateau. An area of c. 4 ha (c. 10 acres) contains some pits (dims c. 10-13m x 2-3m; D 1m). Compiled by: Michael Moore Date of upload: 24 August 2010
Architectural heritage
No building of the National Inventory of Architectural Heritage stands in the townland of Gortnasillagh.
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).
Ground and risks
Radon, landslides, flooding
- Radon
- At the centre of the townland of Gortnasillagh, 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 low, partly inferred.
- Terrain model
- No LiDAR survey of the Office of Public Works covers the centre of the townland of Gortnasillagh.
- 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.
Homes sold
Property Price Register
No address of the register names Gortnasillagh with five sales or more. The sales of the area are on the page of Co. Roscommon.
The townland
- Name
- Gortnasillagh
- Area
- 1,713,648 m² (171.36 ha, 423.45 acres)
- Civil parish
- Baslick, and its townlands
- Barony
- Castlereagh
- Electoral division
- Castleplunket, the unit of the census
- Census 2022
- 563 people lived in 208 households in the Castleplunket electoral division. 85% of households owned their home. 29% of homes were built since 2001. 19% of dwellings stood vacant on census night, and 4% were holiday homes.
- Neighbouring townlands
- Balloony, Carnakit, Castleruby, Drishaghaun West, Glenvela, Kanefield, Kilmurry, Rathfuadagh, Rathmoyle
- Placenames
- Gortnasillagh 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.