Ballyderg

72 registered freehold parcels lie mostly in Ballyderg, from 74 m² to 259,075 m² (25.91 ha, 64.02 acres). The dashed line is the townland's boundary. 42 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.

• P1Agriculture
  Ballina Local Area Plan, Mayo · 2 parcels The zoning objective in the plan

Source: Tailte Éireann and the Department of Housing (MyPlan), national zoning, CC BY 4.0.

• 9 Jul 2025Conditional

  The application will consist of planning permission to Retain existing bus/vehicle parking area, carry out alterations to existing access from public road L1121, install oil & fuel separation chamber/interceptor with associated works, and carry out all ancillary site works.

  Retention · Mayo County Council, 2560454

• 19 Jun 2024Conditional

  carry out alterations and extension to existing dwelling house, construct entrance gate and to install new wastewater treatment system along with all ancillary works

  Permission · Mayo County Council, 2460378

• 9 Jun 2022Conditional

  CONSTRUCT DWELLING HOUSE, PROPRIETARY EFFLUENT TREATMENT UNIT, PERCOLATION AREA AND DETACHED DOMESTIC GARAGE INCLUDING ALL ANCILLARY SITE WORKS

  Permission, 1 home · Mayo County Council, 22471

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 Ballyderg.

Recorded monuments

• MA039-047 Ringfort - rath
  Description

  In pasture, on the gentle S-facing slope of a N–S ridge. A broad expanse of bog lies 100m to E. Slightly raised circular area (diam. 25-30m) defined by an earthen bank (Wth 3.5-4m; int. H 0.6-0.8m; 0.7m at N, 1.2m at W). The bank has a low, broadly slumped internal face. There is a gap (Wth 2m) in the bank at ESE, and another (Wth 2m) at SW. On the E arc the bank has been adapted to serve as a field fence. The rath perimeter is ringed with hazel and hawthorn trees. The interior is obscured by an impenetrable thicket of blackthorn and brambles. Compiled by: Jane O’Shaughnessy Date of upload: 4 February 2020

• MA039-048 Enclosure
  Description

  In pasture, located on the narrow top of a N–S ridge which provides good views in all directions. This possible enclosure is not shown on the 1838 OS 6-inch map; on the 1930 edition, a D-shaped area (c. 25m N–S; c. 25m E–W) is outlined by a dashed line, bordered on the straight side to W by a N–S field boundary. The outline of the D-shaped area can no longer be traced. At the location is an area of disturbed ground incorporating an irregular-shaped depression (c. 12m NE–SW; 4-6m NW–SE; D 0.8m), partly infilled with stones, and with hazel trees growing in and around it. The N–S field boundary on its W side has been removed. Compiled by: Jane O’Shaughnessy Date of upload: 27 January 2020

• MA039-071 Crannog
  Description

  In a flat expanse of wet pasture, formerly a lake, which is named Ballybeg Lough on the 1838 OS 6-inch map. This possible crannog is shown on the 1838 OS 6-inch map as a circular island, named ‘Gull Island’, located in the centre of Ballybeg Lough; by the time of the 1930 edition, the lake had been drained and the island is not shown. It consists of a low, subcircular grass-covered rise or platform (15.4m E–W; 14.5m N–S) defined by a low, broadly sloping scarp (H 0.4-0.5m), and is distinguished by a covering of rich green grass which differs from the surrounding rough bog sedges. A band (Wth 3m) of rushes encircles it. The platform appears to be composed of peaty soil incorporating some stones, but no features are visible to definitively confirm that it is an artificial construction rather than a natural island. A few hawthorn, holly and willow bushes grow around the perimeter. Compiled by: Jane O’Shaughnessy Date of upload: 25 March 2020

Architectural heritage

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

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 Ballyderg, about 1 in 5 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 low, low, partly inferred.

Terrain model

LiDAR of the Office of Public Works, flown in 2011, at 2 m: tile OPW_375 (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 Ballyderg with five sales or more. The sales of the area are on the page of Co. Mayo.

Name

Ballyderg · Baile Uí Dheirg

Area

1,672,822 m² (167.28 ha, 413.36 acres)

Civil parish

Ballynahaglish, and its townlands

Barony

Tirawley

Electoral division

Carrowmore, the unit of the census

Census 2022

896 people lived in 323 households in the Carrowmore electoral division. 88% of households owned their home. 33% of homes were built since 2001. 11% of dwellings stood vacant on census night, and 5% were holiday homes.

Neighbouring townlands

Ballybeg, Carrowmore, Cloonturk, Cloonyvollow, Corroy, Derrynamuck

Placenames

Ballyderg 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.