Derreenargan

131 registered freehold parcels lie mostly in Derreenargan, from 30 m² to 120,389 m² (12.04 ha, 29.75 acres). The dashed line is the townland's boundary; 33 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 Derreenargan 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.

• 26 Aug 2025Conditional

  Retention Permission for (a) extension to side of existing dwelling house and (b) domestic garage & storage shed with all associated site development works at

  Retention, 1 home · Roscommon County Council, 2560409

• 24 Mar 2017Conditional

  Planning permission for:- (a) Construction of extensions to the rear of existing dwelling house; (b) Construction of a new domestic garage; (c) Construction of new entrance wing walls and boundary walls along the public road and (d) Construction of temporary entrance onto the public road for construction traffic purposes during the proposed works with all associated site development works at

  Permission, 1 home · Roscommon County Council, 17125

• 20 Mar 2017N/a

  for (a) construction of extensions to the rear of existing dwelling house, (b) construction of a new domestic garage, (c) construction of new entrance wing walls & boundary walls along the public road and (d) construction of temporary entrance onto the public road for construction traffic purposes during the proposed works with all associated site development works at

  Permission · Roscommon County Council, 17114

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 Derreenargan.

Recorded monuments

No recorded monument lies in the townland of Derreenargan.

Architectural heritage

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

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 high, moderately low, low, on the 1:50,000 map.

Terrain model

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

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

Name

Derreenargan · Doirín Argan

Area

1,827,910 m² (182.79 ha, 451.69 acres)

Civil parish

Ardcarn, and its townlands

Barony

Boyle

Electoral division

Ballyformoyle, the unit of the census

Census 2022

Ballyformoyle electoral division: 173 people in 72 households; 86% of households own their home; 30% of homes were built since 2001; 3% of dwellings stood vacant on census night, and 21% were holiday homes.

Neighbouring townlands

Breanletter, Corglass, Derreenasoo, Derreenavicara, Dromore, Moyoran

Placenames

Derreenargan 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.