# Derryool, Co. Mayo: townland, land parcels and planning

Townland in the civil parish of Ballyhean, barony of Carra, Co. Mayo; in Irish Doire Ghabhla.

- Area (Tailte Éireann): 568,406 m² (56.84 ha, 140.46 acres)
- Land parcels (Tailte Éireann): 9 registered freehold parcels lie mostly in it, median 14,482 m² (1.45 ha, 3.58 acres)
- Zoning (national zoning, MyPlan): not in a zoned settlement
- Planning (National Planning Applications): 6 applications since 2010
- Civil parish: Ballyhean, https://everytownland.com/mayo/parish/ballyhean.md
- Barony: Carra
- Electoral division: Castlebar Rural, the unit of the census
- Census 2022 (Central Statistics Office): 7,935 people lived in 2,987 households in the Castlebar Rural electoral division. 68% of households owned their home. 39% of homes were built since 2001. 7% of dwellings stood vacant on census night, and 1% were holiday homes.
- County: Co. Mayo, https://everytownland.com/mayo.md
- Placenames Database of Ireland: https://www.logainm.ie/en/35723
- Townland number at Tailte Éireann: 151486
- Centre: latitude 53.822115, longitude -9.280168 (WGS 84)

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

9 registered freehold parcels lie mostly in Derryool, from 339 m² to 204,215 m² (20.42 ha, 50.46 acres); 20 neighbouring parcels touch its boundary. Largest first:

- Parcel 970979: 204,215 m² (20.42 ha, 50.46 acres), https://everytownland.com/parcel/970979.md
- Parcel 970980: 183,780 m² (18.38 ha, 45.41 acres), https://everytownland.com/parcel/970980.md
- Parcel 910804: 132,910 m² (13.29 ha, 32.84 acres), https://everytownland.com/parcel/910804.md
- Parcel 5873661: 23,339 m² (2.33 ha, 5.77 acres), https://everytownland.com/parcel/5873661.md
- Parcel 5873689: 14,482 m² (1.45 ha, 3.58 acres), https://everytownland.com/parcel/5873689.md
- Parcel 2657934: 5,275 m² (0.53 ha, 1.3 acres), https://everytownland.com/parcel/2657934.md
- Parcel 954821: 2,246 m² (0.22 ha, 0.56 acres), https://everytownland.com/parcel/954821.md
- Parcel 2711710: 1,940 m², https://everytownland.com/parcel/2711710.md
- Parcel 5873655: 339 m², https://everytownland.com/parcel/5873655.md

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

No zone of a development plan covers Derryool in the national zoning. Outside zoned towns and villages, the county development plan's rural policies apply to each application.

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

6 applications, newest first.

- 29 Jun 2026, Mayo County Council 2660508: N/a. Permission. Mountain Dew Property Company Ltd. intends to apply for a 10-year planning permission for development at Derryool, Rocklands, Castlebar, Co. Mayo, comprising: The development will consist of the re-contouring of agricultural land by the use of imported by-product of soil and stone over an area of 0.79 hectares on an overall site area of 1.05 hectares for the benefit of agricultural land. The deposition area will accommodate 25,200 tonnes of soil and stone. Permission is sought for access, fencing and all associated site development works and services and any mitigation measures such as silt fencing to protect watercourses. Permission is also sought for the retention of an existing access road and pre-existing deposits of topsoil and stone that were claimed from these lands.. File: https://www.eplanning.ie/MayoCC/AppFileRefDetails/2660508/0
- 19 Jun 2026, Mayo County Council 2660483: N/a. Permission. Mountain Dew Property Company Ltd. intends to apply for a 10-year planning permission for development at Derryool, Rocklands, Castlebar, Co. Mayo, comprising: The development will consist of the re-contouring of agricultural land by the use of imported by-product of soil and stone over an area of 0.79 hectares on an overall site area of 1.05 hectares for the benefit of agricultural land. The deposition area will accommodate 25,200 tonnes of soil and stone. Permission is sought for access, fencing and all associated site development works and services and any mitigation measures such as silt fencing to protect watercourses. Permission is also sought for the retention of an existing access road and pre-existing deposits of topsoil and stone that were claimed from these lands.. File: https://www.eplanning.ie/MayoCC/AppFileRefDetails/2660483/0
- 6 Dec 2025, Mayo County Council 2560886: N/a. Permission. The re-contouring of agricultural land by the use of imported by-product of soil and stone over an area of 0.79 hectares on an overall site area of 1.05 hectares for the benefit of agricultural land. The deposition area will accommodate 25,200 tonnes of soil and stone. Permission is sought for access, fencing and all associated site development works and services and any mitigation measures such as silt fencing to protect watercourses. Permission is also sought for the retention of an existing access road. A Natura Impact Statement is also included with the application documents.. File: https://www.eplanning.ie/MayoCC/AppFileRefDetails/2560886/0
- 17 Nov 2025, Mayo County Council 2560817: N/a. Permission. The re-contouring of agricultural land by the use of imported by-product of soil and stone over an area of 0.79 hectares on an overall site area of 1.05 hectares for the benefit of agricultural land. The deposition area will accommodate 25,200 tonnes of soil and stone. Permission is sought for access, fencing and all associated site development works and services and any mitigation measures such as silt fencing to protect watercourses. Permission is also sought for the retention of an existing access road. A Natura Impact Statement is also included with the application documents.. File: https://www.eplanning.ie/MayoCC/AppFileRefDetails/2560817/0
- 17 Feb 2025, Mayo County Council 2560083: Conditional. Permission, 1 home. The construction of a new dwelling house and domestic garage, on-site wastewater treatment system, a new access road, connections to public services and ancillary site development works above and below ground.. File: https://www.eplanning.ie/MayoCC/AppFileRefDetails/2560083/0
- 25 Apr 2024, Mayo County Council 2460236: Refused. Permission. The construction of a new dwelling house and domestic garage, on-site wastewater treatment system, a new access road, connections to public services and ancillary site development works above and below ground.. File: https://www.eplanning.ie/MayoCC/AppFileRefDetails/2460236/0

Applicants are not shown.

## Designated sites (National Parks and Wildlife Service)

No designated site (Special Area of Conservation, Special Protection Area, Natural Heritage Area or proposed one) touches the townland of Derryool.

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

- MA078-049: Ringfort - rath, https://heritagedata.maps.arcgis.com/apps/webappviewer/index.html?id=0c9eb9575b544081b0d296436d8f60f8&query=18a4b61b268-layer-9%2CSMRS%2CMA078-049----. The Archaeological Survey of Ireland (ASI) is in the process of providing information on all monuments on The Historic Environment Viewer (HEV). Currently the information for this record has not been uploaded. To access available information for research purposes please make an appointment in advance with the Archive Unit (open Fridays 10.00 am – 5.00 pm), Department of Housing, Local Government and Heritage, The Custom House, Dublin 1 D01W6XO or email NMarchive@housing.gov.ie.

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)

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

## 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 Derryool, 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 low.
- Terrain model: LiDAR of the Office of Public Works, flown in 2011, at 2 m: tile OPW_343, https://gsi.geodata.gov.ie/downloads/LiDAR/OPW_NASC/OPW_343.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/mayo/derryool-151486.dxf
- GeoJSON, in WGS 84, for a map: https://everytownland.com/mayo/derryool-151486.geojson
- KML, for Google Earth: https://everytownland.com/mayo/derryool-151486.kml

## Homes sold (Residential Property Price Register)

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

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

- Cornamarrow: https://everytownland.com/mayo/cornamarrow.md
- Cregganbell: https://everytownland.com/mayo/cregganbell.md
- Curry: https://everytownland.com/mayo/curry-151327.md
- Derreenmulroy: https://everytownland.com/mayo/derreenmulroy.md
- Drumkeaghta: https://everytownland.com/mayo/drumkeaghta.md
- Lisnaponra North: https://everytownland.com/mayo/lisnaponra-north.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/mayo/derryool-151486
- In JSON: https://everytownland.com/api/townland/mayo/derryool-151486