Grallagh

78 registered freehold parcels lie mostly in Grallagh, from 13 m² to 152,740 m² (15.27 ha, 37.74 acres). The dashed line is the townland's boundary; 37 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 Grallagh 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.

• 7 Apr 2026Conditional

  construct independent living unit associated with the existing dwelling house and permission to upgrade existing septic tank to effluent treatment system with associated site services

  Permission · Mayo County Council, 2675

• 7 Mar 2025Conditional

  Retention of domestic garage, retention of rear extension to dwelling house with minor alterations to front elevations and alterations to site layout Plan

  Retention · Mayo County Council, 2560127

• 14 Feb 2025N/a

  Retention of Domestic Garage, Rear Extension and alterations to elevations and site layout Plan

  Retention · Mayo County Council, 2560079

• 20 Dec 2024Refused

  construction of a new dwelling house, domestic garage, septic tank and percolation area along with ancillary site works

  Permission · Mayo County Council, 24539

• 25 Jul 2018Conditional

  REPLACEMENT AND RELOCATION OF EXISTING DOMESTIC WASTEWATER TREATMENT SYSTEM WITH NEW SYSTEM AND ASSOCIATED AND ANCILLARY DEVELOPMENT AND WORKS AND RETENTION FOR CONVERSION OF DORMER ATTIC AREA TO RESIDENTIAL USE, MODIFICATIONS TO ROOF AND ELEVATIONS OF EXISTING PERMITTED SINGLE STOREY DWELLING ([97/14 REFERS) AND ALTERATIONS TO PREVIOUSLY PERMITTED SITE LAYOUT AND BOUNDARIES (P97/14 REFERS) ALONG WITH ASSOCIATED AND ANCILLARY DEVELOPMENT AND WORKS

  Retention · Mayo County Council, 18565

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 Grallagh.

Recorded monuments

• MA070-124 Ringfort - rath
  Description

  In pasture on a W-facing slope. A subcircular area (int. diams. 38m E-W; 34m N-S) is enclosed by an inner earthen bank (int. H 0.2-0.6m; Wth 4m at E to 6m at NNE; ext. H 1.4m) and a flat-bottomed fosse (Wth 3m at E to 4.5m at S; D 0.3m at E to 0.7m at S). The inner bank and fosse have been dug away (D 0.8m) between NW and NNE, as shown on the OS 25-inch plan (1893). Traces of a second, outer bank of earth and stone (int. H 0.5m; Wth 4m; ext. H 0.7m) survive between SW and W. The interior slopes noticeably down towards the W and contains four large boulders in the W sector. Immediately outside the monument at WSW is a rectangular depression (L c. 16m NNW-SSE; Wth c. 3-4m), the result of relatively modern ground disturbance. A second ringfort (MA070-125----) stands just 16m to the E. Date of visit:13-05-2025   Compiled by: Gearóid Conroy

• MA070-125 Ringfort - rath
  Description

  In pasture on a W-facing slope. A roughly circular area (int. diams. 36m N–S; 4m E–W) is enclosed by an inner bank of earth and stone (int. H 1m; Wth 4m at N to 7m at WNW; ext. H 1.4m) with narrow livestock gaps at N, S and W.  The remains of a flat-bottomed fosse (Wth 3m) and a second, outer bank (int. H over base of fosse 0.8m; Wth 7m; ext. H 0.8m) only survive between ESE and S, with the bank poached by livestock along the SE. A later field boundary runs N-S immediately to the E and may incorporate part of the outer bank. The interior slopes slightly towards the SE. There is a dug-out area (L 8m E-W; Wth 7m; D 0.6m) abutting the inner face of the inner bank in the NW sector. A second rath (MA070-124----) stands 16m to the W.  Date of visit: 13-05-2025 Compiled by: Gearóid Conroy

• MA070-126 Ringfort - rath
  Description

  On a rise in undulating pasture overlooking a valley to the E through which a small stream flows N to join the Ashbrook River. A large densely overgrown, roughly circular area (int. diams. 50m E-W; 48m N–S, 50m E–W) is defined by an inner scarp (H 3m), a fosse (Wth 2-3m) and an outer earthen bank (int. H over base of fosse 0.5m; av. Wth 4m; ext. H 0.8-1.5m) which is overlain by a later field wall in the NE sector. The interior slopes slightly down towards the E and is briar and nettle covered. Date of visit: 13-08-2025 Compiled by: Gearóid Conroy

• MA071-063001 Ringfort - rath
  Description

  In pasture, located on a rise, with good views. There is a stream 140m to E. This well preserved rath consists of a substantially raised circular platform (39.3m N−S; 33.6m E−W) defined by a scarp (H 2m at N, 2.8m at S), and enclosed by a fosse (3.9m at N, 3m at S) with an external bank (Wth 6.8m at N, 6.3m at S; int. H 1.65m at N, 1.5m at S; ext. H 1.55m at N, 1m at S). Remnants of stone facing (H 1.2m) can be seen on the scarp on the N arc; this appears to be the result of modification of the scarp to serve as a field boundary in the modern era. The interior has a slight slope down from centre toward the E, where the entrance is located. The entrance features a broad, slumped section of scarp (Wth 4m) which drops to a causeway across the fosse, with a corresponding gap (Wth 3.5m) in the external bank. An E−W field fence cuts across the N side of the entrance. A souterrain (MA071-063002-), indicated as ‘Cave’on the 1838 and 1931 OS 6-inch maps, is located in the NW quadrant: The NE wall of a collapsed stone-built chamber is visible, and . Four close-set prostrate slabs lie on the ground surface 6m to S, probably displaced roof lintel. The rath perimeter is thickly ringed with hazel, hawthorn and blackthorn trees. The interior ground surface is rather uneven, with hummocks and hollows, and is moderately strewn with loose stones. Compiled by: Jane O’Shaughnessy Date of upload: 6 August 2021

• MA071-063002 Souterrain
  Description

  In a rath (MA071-063001-). This souterrain is marked as ‘Cave’ in the NW quadrant of the rath on the 1838 and 1931 OS 6-inch maps. A sunken oblong hollow (5.5m NE−SW) lies adjacent to the rath scarp at NW. This is a collapsed souterrain chamber or passage. The subsidence slumps down toward the NE end of the hollow where an intact drystone wall is exposed. The wall (H 2m) describes a gently curve N−E in plan, suggesting that it is the intact NE end of the oblong chamber (Wth 2m). It is constructed of ten courses of large stone blocks, gently corbelled towards the top to support a roof lintel. The top of the wall underlies a layer of sod and topsoil (D 0.3m). An E−W row of four large prostrate slabs lies embedded in the ground surface 6m to S, these may be roof lintels –possibly displaced. There is a slight hollow in ground surface adjacent to the eastern-most stone. Compiled by: Jane O’Shaughnessy Date of upload: 6 August 2021

• MA071-064 Enclosure
  Description

  In pasture, encompassing the top of a prominent rise, with a stream at the base of the slope to NE. This rath is shown as a circular embanked enclosure (diam. 20-25m) on the 1838 OS 6-inch map; it is not shown on later map editions. The barely discernible outline of an oval enclosure (c. 20m E–W; c. 25m N–S) is defined by traces of a scarp at NE−S, merging with the natural slope. A field boundary on an E−W axis crosses the N end. Compiled by: Jane O’Shaughnessy Date of upload: 6 August 2021

Architectural heritage

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

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 high, 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 Grallagh.

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 Grallagh with five sales or more. The sales of the area are on the page of Co. Mayo.

Name

Grallagh · An Ghreallach

Area

1,856,328 m² (185.63 ha, 458.71 acres)

Civil parish

Kildacommoge, and its townlands

Barony

Gallen

Electoral division

Strade, the unit of the census

Census 2022

Strade electoral division: 647 people in 239 households; 91% of households own their home; 27% of homes were built since 2001; 16% of dwellings stood vacant on census night, and 5% were holiday homes.

Neighbouring townlands

Ardcloon, Ashbrook, Carrowcastle, Carrownacross, Carrowroger, Cornanaff, Knockatemple, Lisgormin, Strade

Placenames

Grallagh 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.