Derrycashel

34 registered freehold parcels lie mostly in Derrycashel, from 368 m² to 73,946 m² (7.39 ha, 18.27 acres). The dashed line is the townland's boundary; 21 neighbouring parcels touch it.

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

No zone of a development plan covers Derrycashel 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.

• 13 Jun 2025Conditional

  Planning permission to construct a single storey extension, make alterations to the existing dwelling including adding additional windows/making alterations to existing windows and installing a new treatment system and percolation area, and all ancillary site development works at

  Permission, 1 home · Roscommon County Council, 2560284

• 31 May 2025N/a

  Planning Permission to construct a single storey extension, new treatment system and percolation area and all ancillary site development works at

  Permission · Roscommon County Council, 2560266

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 Derrycashel.

Recorded monuments

• RO003-016 Crannog
  Description

  Marked only on the 1837 ed. of the OS 6-inch map as a circular island (diam. c. 5m), barely 5m from the NE shore of Derrynasallagh Lough (dims. c. 500m N-S; c. 250m E-W). It is not visible now and is not known locally as a crannog, but it might be incorporated into the shore of the lake. Compiled by: Michael Moore Date of upload: 24 August 2010

• RO003-029 Ringfort - rath
  Description

  On top of a drumlin. Circular grass and rush-covered area (diam. 26.5m E-W; 26.3m N-S) defined by a grass-covered earthen bank (Wth 2.7-4m; int. H 0.1-0.25m; ext. H 0.4-0.9m), with an outer fosse (Wth of top 3-3.5m; D 0.1m) NE-WSW. The entrance (Wth 2.5m) is at S. The perimeter is slightly truncated by a N-S field bank at W and an E-W field bank at N, while a N-S field bank which had overlain the interior at E has been removed. 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 Derrycashel.

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 moderately low, low, low (inferred), on the 1:50,000 map; parts are water.

Terrain model

No LiDAR survey of the Office of Public Works covers the centre of the townland of Derrycashel.

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 Derrycashel with five sales or more. The sales of the area are on the page of Co. Roscommon.

Name

Derrycashel

Area

1,040,245 m² (104.02 ha, 257.05 acres)

Civil parish

Ardcarn, and its townlands

Barony

Boyle

Electoral division

Kilbryan, the unit of the census

Census 2022

Kilbryan electoral division: 400 people in 144 households; 89% of households own their home; 34% of homes were built since 2001; 11% of dwellings stood vacant on census night, and 22% were holiday homes.

Neighbouring townlands

Bodorragha, Clerragh, Cornagrea, Derreentunny, Derrynaslieve (Co. Sligo), Derrywanna, Shanvoley

Placenames

Derrycashel 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.