Trouthill or Knockbrack

30 registered freehold parcels lie mostly in Trouthill or Knockbrack, from 864 m² to 140,990 m² (14.1 ha, 34.84 acres). The dashed line is the townland's boundary. 24 neighbouring parcels touch it.

Download the townland as DXF, in Irish Transverse Mercator metres, with its boundary, parcels and buildings, or as GeoJSON or KML.

No zone of a development plan covers Trouthill or Knockbrack 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 Dec 2025Conditional

  retention permission for an existing dwelling house as constructed, along with planning permission for alterations and extension to same, new septic tank treatment system along with all ancillary site works

  Permission · Mayo County Council, 25518

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: River Moy SAC 002298

Recorded monuments

• MA062-074 Enclosure
  Description

  In the SE corner of a pasture field, located on an island of gently elevated ground surrounded by poorly drained or boggy land. Shown on the 1837 OS 6-inch map as an oval embanked enclosure (max. dim. c. 20m), with a farmstead/cluster of vernacular buildings immediately to E. A very slight rise is evident in this part of the field, but otherwise there is no visible trace of the enclosure at ground level. The field is bordered on the S by an old E−W road/farm track, which may clip or overlie the S edge of the enclosure. Compiled by: Jane O’Shaughnessy Date of upload: 7 December 2020

• MA062-134 Enclosure
  Description

  In improved pasture, located on the broad, undulating top of a ridge, providing good views over surrounding grassland and flat expanses of bog. The Sonnagh River skirts the base of the ridge, c. 180m to SW. This possible rath is shown on the 1837 and 1919 OS 6-inch maps as a circular enclosure (diam. c. 30m). It enclosure has been levelled; there is no visible trace at ground level. It may have contained a souterrain (MA062-134001-). Compiled by: Jane O’Shaughnessy Date of upload: 26 January 2021

Architectural heritage

No building of the National Inventory of Architectural Heritage stands in the townland of Trouthill or Knockbrack.

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

At the centre of the townland of Trouthill or Knockbrack, about 1 in 10 homes in this area is likely to have high radon levels. Testing a home

Landslides

The 1:50,000 map rates the landslide susceptibility here as moderately high, moderately low, low, partly inferred.

Terrain model

LiDAR of the Office of Public Works, flown in 2011, at 2 m: tile OPW_746 (ZIP).

Flooding

The Office of Public Works publishes its flood maps on floodinfo.ie.

Radon Risk Map of Ireland, Environmental Protection Agency, and Landslide Susceptibility Classification, Geological Survey Ireland, both under 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 Trouthill or Knockbrack with five sales or more. The sales of the area are on the page of Co. Mayo.

Name

Trouthill or Knockbrack · An Cnoc Breac

Area

804,088 m² (80.41 ha, 198.69 acres)

Civil parish

Kilbeagh, and its townlands

Barony

Costello

Electoral division

Sonnagh, the unit of the census

Census 2022

1,242 people lived in 457 households in the Sonnagh electoral division. 76% of households owned their home. 32% of homes were built since 2001. 17% of dwellings stood vacant on census night, and 6% were holiday homes.

Neighbouring townlands

Cartron, Killeen, Mullenmadoge, Tomboholla

Placenames

Trouthill or Knockbrack 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.