Carrownahaun

82 registered freehold parcels lie mostly in Carrownahaun, from 308 m² to 112,409 m² (11.24 ha, 27.78 acres). The dashed line is the townland's boundary; 30 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 Carrownahaun 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.

• 19 Nov 2025Conditional

  minor demolitions of two existing chimneys and 4.2m2 front porch to house. Provision of new 40.4m2 two storey extension to the south facing front elevation. Provision of a new wastewater treatment system of septic tank, tricel puraflo discharging to a polishing filter. Existing septic tank system to be decommissioned. Replacement of existing single glazed timber windows and doors with new double/triple glazed windows and external doors, as part of overall internal renovation works

  Permission · Mayo County Council, 25475

• 8 Sept 2020Conditional

  MINOR DEMOLITIONS OF REMOVAL OF CHIMNEY TO HOUSE. RETENTION OF EXISTING TWO STOREY HOUSE AND BARN IN REVISED SITE BOUNDARIES WITH THE PROVISION OF A NEW WASTE WATER TREATMENT SYSTEM INCLUDING PUMPED RAISED PERCOLATION AREA. EXISTING SEPTIC TANK SYSTEM TO BE DECOMMISSIONED, REPLACEMENT OF EXISTING SINGLE GLAZED TIMEBER WINDOWS AND DOORS WITH NEW DOUBLE/TRIPLE GLAZED WINDOWS AND EXTERNAL DOORS AS PRRT OF OVERRALL INTERNAL RENOVATON WORKS.

  Retention · Mayo County Council, 20648

• 30 Oct 2018Conditional

  CHANGE OF HOUSE TYPE TO PREVIOUSLY APPROVED PLANNING REFERENCE P11/464 AND P11/4640

  Permission, 1 home · Mayo County Council, 18851

• 30 Oct 2018Conditional

  CHANGE OF HOUSE TYPE TO PREVIOUSLY APPROVED PLANNING REFERENCE P11/463 & P11/4630

  Permission, 1 home · Mayo County Council, 18852

• 22 May 2018Conditional

  CONSTRUCT DWELLING HOUSE, DOMESTIC GARAGE, SEPTIC TANK AND PERCOLATION AREA AND ALL ANCILLARY WORKS

  Permission, 1 home · Mayo County Council, 18381

• 30 Jun 2017Conditional

  REPOSITION A SEWAGE TREATMENT PLANT AND POLISHING FILTER FROM PREVIOUS LOCATION GRANTED UNDER P10/1031. RETENTION FOR EXISTING STORAGE SHED AND GREENHOUSE. FULL PLANNNING PERMISSION FOR A KITCHEN EXTENSION TO THE REAR OF THE PROPERTY

  Permission · Mayo County Council, 17522

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 Carrownahaun.

Recorded monuments

• MA080-044 Well
  Description

  In improved pasture, at the base of a gentle S-facing slope. Named ‘Toberkeelty’ on the 1837 and 1919 OS 6-inch maps. Natural spring emerging from the base of the slope, where it collects as a small unenclosed pool, before flowing as a stream to SE through an area of wet ground. A concrete pipe has been inserted into the pool. There is no evidence that this well is of any great antiquity and no local tradition of use as a holy well. Compiled by: Jane O'Shaughnessy Date of upload: 13 July 2015

• MA091-001001 Earthwork
  Description

  In good pasture, located on a rise with excellent views to SW–N over rolling grassland, and an upland ridge to NE. This enigmatic monument is not shown on the 1838 and 1920 OS 6-inch maps, although the souterrain (MA091-001002) it contains is indicated on the 1920 edition as ‘Cave’. It consists of a natural hillock which appears to have been scarped and modified, creating a tiered effect of a mound on top of a platform. The base of the hillock forms a roughly circular platform (c. 55m NW-SE; c. 55.2m NE–SW) defined by a substantial scarp (H 2m at NW, 1.2m at SE). The platform is topped by an ovoid or leaf-shaped mound (32m NW–SE; 29.8m NE–SW; H 2.2m at NW, c. 2m at SE) with a level roughly oval top (10.8m NW–SE; 7.5m NE–SW) from which the sides fall steeply and broadly. The S slope is somewhat gentler and more ramp-like, and provides the easiest access to the top. The mound more or less occupies the centre of the platform, leaving a berm or terrace (W 11-14m) of clear space enclosing its base at NW–SE. The berm does not extend around the W side –here the mound is more broadly slumped expanding as far as the outer edge of the platform. This elongated W slope is where the souterrain (MA091-001002-) is inserted into the mound. A slumped section (Wth 6m) of the platform scarp at the NW may be the site of the entrance. Extending for c. 35m to NNW from this point there is a lower narrow elongation (Wth 8-10m) of the hillock, with a steep slope (H 2m) on the N side. This provides a natural routeway to the platform berm. At the NE of the platform a depression (Wth 4-6m), possibly a fosse, separates the platform from adjacent naturally rising ground. There is no evidence of an encircling fosse elsewhere. There are a number of grassed-over sand pits in the vicinity of the monument, including two roughly circular, grassy depressions (max. dim. 15m & 6m) abutting the platform scarp at S–SE. This is an unusual monument. When the souterrain was constructed, the mound may have been a form of rath, with the relatively small space at top used for habitation. Another possibility is that it is a prehistoric mound that was reused in the early historic period. It was first recorded by Knox (1911 221-2) who considered that it might be interpreted as ‘a very rough Norman motte and bailey’, if it were not for the presence of the souterrain. Compiled by: Jane O’Shaughnessy Date of upload: 11 February 2022

• MA091-001002 Souterrain
  Description

  In an earthwork (MA091-001001-). This stone-built souterrain is indicated on the 1920 edition as ‘Cave’. It is exposed at surface level on the broadly sloping W slope of the earthwork/mound. The W terminal of the passage is located at the base of the mound, and from there the passage zig-zags upslope to the crest of the mound, with a difference in level of over 2m between the E and W terminals of the passage. A short length (L 2.7m NE−SW) of the passage remains intact at its lower W end. Here the end wall is formed by an upright slab which rests on a single low foundation course of small stones. The end slab coincides with, and is set into, the lower outer scarp of the earthwork. A large boulder is set in the ground immediately outside (to W) of the end stone, possibly a support stone. A section (L 2.7m; Wth 1.35m; H 0.8m at SW end) of the passage, directly in front (to E) of the end wall, remains intact with side walls, three to four courses high, constructed of large stones or boulders, with slightly projecting corbels at the top of the walls supporting a row of three massive in situ limestone roof lintels. Earthen infill at the NE end of this intact section reduces the internal height to 0.54m. Elsewhere along its length, the passage is missing its roof lintels and is evident as a grassed-over depression (Wth 2.4m; D 0.4m), with stones protruding randomly from the sod-covered sides. From the W end wall the passage is level, extending to NE for 7.7m, then it turns to SSE for 7.3m rising gently with the lower contours of the mound, then it swings upslope to E for 6m ending at the top edge of the mound. Compiled by: Jane O’Shaughnessy Date of upload: 11 February 2022

Architectural heritage

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

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 Carrownahaun.

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

Name

Carrownahaun · Ceathrú an Átháin

Area

2,199,842 m² (219.98 ha, 543.59 acres)

Civil parish

Balla, and its townlands

Barony

Clanmorris

Electoral division

Balla, the unit of the census

Census 2022

Balla electoral division: 1,661 people in 631 households; 81% of households own their home; 41% of homes were built since 2001; 13% of dwellings stood vacant on census night, and 2% were holiday homes.

Neighbouring townlands

Ballyclogher, Carrowgarve, Craggagh, Derrowel Beg, Derrowel More, Derryvohy, Garhawnagh, Knocknamoghalaun, Pollavaddy

Placenames

Carrownahaun 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.