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

Townland in the civil parish of Addergoole, barony of Tirawley, Co. Mayo; in Irish Dairbhín.

- Area (Tailte Éireann): 1,134,464 m² (113.45 ha, 280.33 acres)
- Land parcels (Tailte Éireann): 34 registered freehold parcels lie mostly in it, median 21,300 m² (2.13 ha, 5.26 acres)
- Zoning (national zoning, MyPlan): not in a zoned settlement
- Planning (National Planning Applications): 3 applications since 2010
- Civil parish: Addergoole, https://everytownland.com/mayo/parish/addergoole.md
- Barony: Tirawley
- Electoral division: Deel, the unit of the census
- Census 2022 (Central Statistics Office): 491 people lived in 179 households in the Deel electoral division. 90% of households owned their home. 21% of homes were built since 2001. 16% of dwellings stood vacant on census night, and 4% were holiday homes.
- County: Co. Mayo, https://everytownland.com/mayo.md
- Placenames Database of Ireland: https://www.logainm.ie/en/34372
- Townland number at Tailte Éireann: 151497
- Centre: latitude 54.051142, longitude -9.34509 (WGS 84)

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

34 registered freehold parcels lie mostly in Dervin, from 492 m² to 129,018 m² (12.9 ha, 31.88 acres); 27 neighbouring parcels touch its boundary. Largest first:

- Parcel 955608: 129,018 m² (12.9 ha, 31.88 acres), https://everytownland.com/parcel/955608.md
- Parcel 1007377: 119,557 m² (11.96 ha, 29.54 acres), https://everytownland.com/parcel/1007377.md
- Parcel 997035: 117,280 m² (11.73 ha, 28.98 acres), https://everytownland.com/parcel/997035.md
- Parcel 1008786: 84,821 m² (8.48 ha, 20.96 acres), https://everytownland.com/parcel/1008786.md
- Parcel 872340: 81,131 m² (8.11 ha, 20.05 acres), https://everytownland.com/parcel/872340.md
- Parcel 905807: 78,992 m² (7.9 ha, 19.52 acres), https://everytownland.com/parcel/905807.md
- Parcel 4178028: 41,114 m² (4.11 ha, 10.16 acres), https://everytownland.com/parcel/4178028.md
- Parcel 1010440: 39,331 m² (3.93 ha, 9.72 acres), https://everytownland.com/parcel/1010440.md
- Parcel 907788: 32,406 m² (3.24 ha, 8.01 acres), https://everytownland.com/parcel/907788.md
- Parcel 1009629: 29,174 m² (2.92 ha, 7.21 acres), https://everytownland.com/parcel/1009629.md
- Parcel 985489: 28,447 m² (2.84 ha, 7.03 acres), https://everytownland.com/parcel/985489.md
- Parcel 876631: 28,253 m² (2.83 ha, 6.98 acres), https://everytownland.com/parcel/876631.md
- Parcel 933106: 27,878 m² (2.79 ha, 6.89 acres), https://everytownland.com/parcel/933106.md
- Parcel 980686: 21,749 m² (2.17 ha, 5.37 acres), https://everytownland.com/parcel/980686.md
- Parcel 943683: 21,698 m² (2.17 ha, 5.36 acres), https://everytownland.com/parcel/943683.md
- Parcel 941052: 21,691 m² (2.17 ha, 5.36 acres), https://everytownland.com/parcel/941052.md
- Parcel 991919: 21,470 m² (2.15 ha, 5.31 acres), https://everytownland.com/parcel/991919.md
- Parcel 890340: 21,130 m² (2.11 ha, 5.22 acres), https://everytownland.com/parcel/890340.md
- Parcel 969465: 20,384 m² (2.04 ha, 5.04 acres), https://everytownland.com/parcel/969465.md
- Parcel 912465: 20,312 m² (2.03 ha, 5.02 acres), https://everytownland.com/parcel/912465.md
- Parcel 975316: 18,197 m² (1.82 ha, 4.5 acres), https://everytownland.com/parcel/975316.md
- Parcel 912086: 17,788 m² (1.78 ha, 4.4 acres), https://everytownland.com/parcel/912086.md
- Parcel 971577: 16,471 m² (1.65 ha, 4.07 acres), https://everytownland.com/parcel/971577.md
- Parcel 910338: 15,708 m² (1.57 ha, 3.88 acres), https://everytownland.com/parcel/910338.md
- Parcel 904048: 15,517 m² (1.55 ha, 3.83 acres), https://everytownland.com/parcel/904048.md
- Parcel 1011291: 14,788 m² (1.48 ha, 3.65 acres), https://everytownland.com/parcel/1011291.md
- Parcel 967360: 12,844 m² (1.28 ha, 3.17 acres), https://everytownland.com/parcel/967360.md
- Parcel 973705: 12,453 m² (1.25 ha, 3.08 acres), https://everytownland.com/parcel/973705.md
- Parcel 965335: 11,367 m² (1.14 ha, 2.81 acres), https://everytownland.com/parcel/965335.md
- Parcel 5471578: 7,751 m² (0.78 ha, 1.92 acres), https://everytownland.com/parcel/5471578.md
- Parcel 1006757: 2,229 m² (0.22 ha, 0.55 acres), https://everytownland.com/parcel/1006757.md
- Parcel 4800483: 2,119 m² (0.21 ha, 0.52 acres), https://everytownland.com/parcel/4800483.md
- Parcel 5945270: 1,346 m², https://everytownland.com/parcel/5945270.md
- Parcel 996066: 492 m², https://everytownland.com/parcel/996066.md

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

No zone of a development plan covers Dervin 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)

3 applications, newest first.

- 29 May 2023, Mayo County Council 23299: Conditional. Permission, 1 home. single storey dwelling house, domestic garage, boundary fencing/treatment and septic system, complete with all ancillary site development works. File: https://www.eplanning.ie/MayoCC/AppFileRefDetails/23299/0
- 15 Jun 2017, Mayo County Council 17462: Conditional. Permission, 1 home. CONSTRUCT EXTENSION TO THE SOUTH SIDE OF THE EXISTING DWELLING HOUSE, WITH MINOR ALTERATIONS AND RENOVATIONS TO EXISTING DWELLING HOUSE TO INCLUDE PROPOSED NEW SEPTIC TANK AND PERCOLATION AREA INCLUDING ALL OTHER ANCILLARY SITEWORK AND SERVICES. File: https://www.eplanning.ie/MayoCC/AppFileRefDetails/17462/0
- 3 Apr 2017, Mayo County Council 17233: Conditional. Permission, 1 home. CONSTRUCT NEW DWELLING HOUSE AND DOMESTIC GARAGE WITH EFFLUENT TREATMENT SYSTEM AND FOR ALL ASSOCIATED SITE WORKS. File: https://www.eplanning.ie/MayoCC/AppFileRefDetails/17233/0

Applicants are not shown.

## Designated sites (National Parks and Wildlife Service)

- Special Area of Conservation: River Moy SAC, site code 002298, https://www.npws.ie/protected-sites/sac/002298

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

- MA038-086: Ringfort - rath, https://heritagedata.maps.arcgis.com/apps/webappviewer/index.html?id=0c9eb9575b544081b0d296436d8f60f8&query=18a4b61b268-layer-9%2CSMRS%2CMA038-086----. In pasture, close to the boundary on the NW end of the townland, located on a rise, with a natural depression of wettish ground intervening at S–SW between it and another rise, 90m to S, on which an enclosure (MA038-087----) is located. Circular area (23m E–W; 23.8m N–S) defined by the remnants of a bank. The bank is evident on the W half as a low rise (Wth 3.8m; int. H 0.45m; ext. H 0.6m, at NNW) of earth and stone, quite dilapidated and broadly slumped; on the E half it has been largely levelled, surviving only as a slight scarp, clipped on its outer edge at NE–ESE by a later field fence. In the NW quadrant of the interior, there is a linear depression or trench (L 7.6m; Wth 2.3m; D 0.45-0.6m) on a NNE–SSW axis. At its SSW end, close to the inner face of the bank, it takes a right-angled turn and continues to SSE for 8.5m, then turns sharply again, possibly continuing for c. 4m to the E but this section is less clearly defined. Heaps of sod-covered earth or upcast border the trenches, and stones protrude from the sod in the base of the trenches. Compiled by: Jane O'Shaughnessy Date of upload: 1 August 2019
- MA038-087: Enclosure, https://heritagedata.maps.arcgis.com/apps/webappviewer/index.html?id=0c9eb9575b544081b0d296436d8f60f8&query=18a4b61b268-layer-9%2CSMRS%2CMA038-087----. In pasture, located on a rise with a fall of ground to N–NW, and good views of the surrounding landscape. Shown on the 1838 and 1922 OS 6-inch maps as a circular enclosure (diam. c. 20m). This enclosure has been levelled; a slight circular undulation (diam. 12m N–S; 14m E–W) can be discerned. There is a rath (MA038-086----) 90m to N, and another rath (MA038-088----) c. 160m to SE. Compiled by: Jane O'Shaughnessy Date of upload: 1 August 2019
- MA038-088: Ringfort - rath, https://heritagedata.maps.arcgis.com/apps/webappviewer/index.html?id=0c9eb9575b544081b0d296436d8f60f8&query=18a4b61b268-layer-9%2CSMRS%2CMA038-088----. In pasture, in the NE corner of a modern rectangular field, located on the E side of a low rise in undulating terrain. Slightly raised, broadly oval area (35.5m E–W; 40.4m N–S) defined by a bank. The bank (Wth 4.2m at SE, 4.6m at NW; int. H 0.6m at SE, 1.2m at NW; ext. H 1.5m at SE, 1.55m at NW) has an earthen scarp on its external face, but the body of the bank appears to be composed of earth and stones. There is a gap (Wth 2m) in the bank at E, which may be original entrance. Stones are visible protruding from the N terminal, but it is unclear if these represent an original stone facing. Immediately inside the bank, mirroring its circuit, there is a contiguous, partly sod-covered stone bank (Wth 3-4m; H 0.5m). It consists of heaps of loose stone pushed against the inner face of the earthen rath bank. This is an unusual feature, of uncertain significance –it seems likely to be the result of field clearance activity in the relatively recent past. The interior has an uneven surface, and slight linear N–S undulations are discernible, possibly the remnants of cultivation ridges. In the centre, there are three heaps (max. dim. c. 6m; H 0.6m) of loose stones. There is a mound (MA038-149---) 40m to N, and an enclosure (MA038-087----) c. 160m to NW. Compiled by: Jane O'Shaughnessy Date of upload: 1 August 2019
- MA038-149: Mound, https://heritagedata.maps.arcgis.com/apps/webappviewer/index.html?id=0c9eb9575b544081b0d296436d8f60f8&query=18a4b61b268-layer-9%2CSMRS%2CMA038-149----. In average pasture, in a thicket of blackthorn and brambles, located on the E side of a low rise. This mound is not indicated on the 1838 and 1922 OS 6-inch maps. It consists of a raised sub-circular concentration (12m E-W; 10m N-S, H c. 0.8m) of earth and stone, broadly slumped on the E side. There is a slight hollow or concave area at W. The top (diam. c. 7-8m) is covered with loose boulders amidst clusters of smaller stones that appear to be the result of field clearance. A rath (MA038-088) is located 40m to S. Compiled by: Jane O'Shaughnessy Date of upload: 15 August 2019

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 Dervin.

## 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 Dervin, about 1 in 10 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 moderately low, low, partly inferred.
- Terrain model: no LiDAR survey of the Office of Public Works covers the centre of the townland of Dervin.
- 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/dervin.dxf
- GeoJSON, in WGS 84, for a map: https://everytownland.com/mayo/dervin.geojson
- KML, for Google Earth: https://everytownland.com/mayo/dervin.kml

## Homes sold (Residential Property Price Register)

No address of the register names Dervin 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)

- Ballyduffy: https://everytownland.com/mayo/ballyduffy.md
- Ballymoyock: https://everytownland.com/mayo/ballymoyock.md
- Ballyvicmaha: https://everytownland.com/mayo/ballyvicmaha.md
- Castlehill: https://everytownland.com/mayo/castlehill-150826.md
- Doonbreedia: https://everytownland.com/mayo/doonbreedia.md
- Sranalaghta South: https://everytownland.com/mayo/sranalaghta-south.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/dervin
- In JSON: https://everytownland.com/api/townland/mayo/dervin