Mountdelvin

93 registered freehold parcels lie mostly in Mountdelvin, from 12 m² to 100,164 m² (10.02 ha, 24.75 acres). The dashed line is the townland's boundary; 41 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 Mountdelvin 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.

• 6 Feb 2026Conditional

  Permission for the following: 1: Demolish the existing extension to the south of the dwelling house and the existing storage shed toward the rear of the dwelling, 2: Construct extensions to both sides of the dwelling house and to construct a new domestic garage/fuel store, 3: Install a new waste water treatment system with percolation area and all ancillary site works at

  Permission · Roscommon County Council, 2660044

• 29 Jan 2026N/a

  Permission for the following: 1: Demolish the existing extension to the south of the dwelling house, permission also sought to demolish the existing storage shed toward the rear of the dwelling. 2: Full planning permission sought to construct extensions to both sides of the dwelling house, full planning also sought to construct a new domestic garage / fuel store 3: Full planning sought to install a new waste water treatment system with percolation area and all ancillary site works at

  Permission · Roscommon County Council, 2660036

• 1 Sept 2023Conditional

  Permission sought to renovate the existing derelict dwelling house, construct and extension to the existing derelict dwelling house, install a new wastewater treatment system and percolation area and all ancillary site works at

  Permission, 1 home · Roscommon County Council, 2360088

• 11 Aug 2023N/a

  Permission sought to renovate the existing derelict dwelling house, construct and extension to the existing derelict dwelling house, install a new wastewater treatment system and percolation area and all ancillary site works at

  Permission · Roscommon County Council, 2360045

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

Designated sites

• Special Area of Conservation: Lough Corrib SAC 000297

Recorded monuments

No recorded monument lies in the townland of Mountdelvin.

Architectural heritage

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

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 5 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.

Terrain model

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

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

Name

Mountdelvin

Area

1,840,403 m² (184.04 ha, 454.77 acres)

Civil parish

Kiltullagh, and its townlands

Barony

Castlereagh

Electoral division

Kiltullagh, the unit of the census

Census 2022

Kiltullagh electoral division: 1,185 people in 460 households; 84% of households own their home; 44% of homes were built since 2001; 15% of dwellings stood vacant on census night, and 6% were holiday homes.

Neighbouring townlands

Ballinross, Benmore, Cloondergan (Co. Galway), Kilvine (Co. Mayo), Pollaphuca

Placenames

Mountdelvin 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.