Trimleston or Owenstown
Trimleston or Owenstown is a townland in the civil parish of Taney, barony of Rathdown, Co. Dublin. Its name in Irish is Baile Eoghain.
Parcel 5169801
- Area
- 296 m²
- Buildings
- 2 buildings touch it. Their footprint covers 199 m².
- Zoning
- R2 Objective A (Dún Laoghaire-Rathdown County Development Plan 2022-2028 (Variation No.1)) The objective
- Townland
- Trimleston or Owenstown
Planning applications on this parcel
28 Nov 2023Grant permission
Single storey rear extension. The construction of a 1st floor extension above
Permission · Dun Laoghaire Rathdown County Council, D23A/0757
15 Nov 2023Declare application invalid
A single storey rear extension, the construction of a 1st floor extension above
Permission · Dun Laoghaire Rathdown County Council, D23A/0715
20 Sept 2022Grant permission
Permission for the following: 1. New two storey side extension. 2. New shed and
Permission · Dun Laoghaire Rathdown County Council, D22A/0709
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 this parcel.
Recorded monuments around it
No zone of notification of a recorded monument touches this parcel.
Architectural heritage
No building of the National Inventory of Architectural Heritage stands on this parcel.
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).
Ground and risks
- Radon
- At the centre of this parcel, about 1 in 20 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 low.
- Terrain model
- LiDAR of the Office of Public Works, flown in 2011, at 2 m: tile OPW_3257 (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.
Download this parcel as DXF, in Irish Transverse Mercator metres, with its neighbours and buildings, for a drawing program. GeoJSON, in WGS 84, suits a map, and KML opens in Google Earth.
Registered freehold land, Tailte Éireann, CC BY 4.0. 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.
- Area
- 30.5 ha
- 75 acres
- Land parcels
- 234
- registered freehold, median 304 m²
- Zoning
- R2
- Objective A
- Planning
- 100
- applications since 2010
Land parcels
Registered freehold land, Tailte Éireann
234 registered freehold parcels lie mostly in Trimleston or Owenstown, from 5 m² to 6,195 m² (0.62 ha, 1.53 acres). The dashed line is the townland's boundary. 36 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.
Zoning
Development plans, national zoning
- R2Objective A (Existing residential)
Dún Laoghaire-Rathdown County Development Plan 2022-2028 (Variation No.1), Dún Laoghaire–Rathdown · 264 parcels The zoning objective in the plan - R2Z1: Sustainable Residential Neighbourhoods (Existing residential)
Development Plan 2022-2028 (Variation No. 11), Dublin City · 1 parcels The zoning objective in the plan - M3Objective NC (District, neighbourhood centre)
Dún Laoghaire-Rathdown County Development Plan 2022-2028 (Variation No.1), Dún Laoghaire–Rathdown · 1 parcels The zoning objective in the plan - G1Objective F (Open space, park)
Dún Laoghaire-Rathdown County Development Plan 2022-2028 (Variation No.1), Dún Laoghaire–Rathdown · 0 parcels The zoning objective in the plan - G5Z9: Amenity/Open Space Lands/Green Network (Mixed/general 'green'/recreation/conservation, other)
Development Plan 2022-2028 (Variation No. 11), Dublin City · 0 parcels The zoning objective in the plan
Source: Tailte Éireann and the Department of Housing (MyPlan), national zoning, CC BY 4.0.
Planning applications
Sites that touch the townland, newest first
12 Oct 2026Referral
The development will consist of the construction of i) a two storey extension t
Permission · Dun Laoghaire Rathdown County Council, D26A/0764/WEB
17 Sept 2026Assessment period
Permission is sought for new vehicular entrance and parking area (including ass
Permission · Dun Laoghaire Rathdown County Council, D26A/0697/WEB
10 Sept 2026Assessment period
Conversion of her attic to storage including changing her existing hipped end r
Permission · Dun Laoghaire Rathdown County Council, D26B/0494/WEB
27 Aug 2026Assessment period
Retention permission for hip to gable non habitable attic conversion; single sto
Permission for retention · Dun Laoghaire Rathdown County Council, D26A/0642/WEB
12 Aug 2026Grant permission
Conversion of existing attic space comprising of modification of existing roof
Permission · Dun Laoghaire Rathdown County Council, D26B/0450/WEB
24 Jul 2026Grant permission
Demolition of existing garage at the side, construction of a two storey, pitche
Permission · Dun Laoghaire Rathdown County Council, D26B/0424/WEB
3 Jul 2026Declare application invalid
Construction of a single-storey porch to the side, a two storey, pitched roof e
Permission · Dun Laoghaire Rathdown County Council, D26B/0385/WEB
24 Jun 2026Grant permission
A 26.5sqm. first floor extension to the side of the existing house requiring a
Permission · Dun Laoghaire Rathdown County Council, D26A/0472/WEB
4 Jun 2026S5 dec exempt
Installation of single roof window (Velux type) measuring approx 940mm x 1600mm
Section 5 · Dun Laoghaire Rathdown County Council, REF8626
25 May 2026Refuse permission for retention
A roofed storage area to side and slightly beyond the front facade
Permission for retention · Dun Laoghaire Rathdown County Council, D26B/0306/WEB
22 May 2026Grant permission
•Demolition of the existing single storey extension to the side, demolition of h
Permission · Dun Laoghaire Rathdown County Council, D26B/0303/WEB
9 Apr 2026S5 dec exempt
Proposed development consists of the installation of external wall insulation to
Section 5 · Dun Laoghaire Rathdown County Council, REF5426
7 Apr 2026Grant permission
The development will consist of:1. Demolition of single storey shed to the rear,
Permission · Dun Laoghaire Rathdown County Council, D26B/0209/WEB
7 Apr 2026Grant permission
The Development will consist of - The construction of a two-storey extension to
Permission · Dun Laoghaire Rathdown County Council, D26B/0211/WEB
1 Apr 2026Grant permission
Alterations and additions to an existing 2-storey detached dwelling comprising o
Permission · Dun Laoghaire Rathdown County Council, D26A/0254/WEB
9 Feb 2026Grant permission
a) single storey extension to rear of existing dwelling with rooflights; b) exis
Permission · Dun Laoghaire Rathdown County Council, D26A/0074/WEB
7 Jan 2026Grant permission
Permission is sought for the secondary use of 179 No. permitted and operational
Permission · Dun Laoghaire Rathdown County Council, D26A/0004/WEB
19 Dec 2025Grant permission
The development will consist of: •Alterations to previously permitted dormers (F
Permission · Dun Laoghaire Rathdown County Council, D25B/0724/WEB
3 Dec 2025S5 req ai
New 900mm wide, 1.6m high gate to the rear garden. From rear laneway establishe
Section 5 · Dun Laoghaire Rathdown County Council, REF18925
19 Nov 2025Grant permission
The development will consist of: (1) removal of existing guard hut and construc
Permission · Dun Laoghaire Rathdown County Council, D25A/0883/WEB
23 Oct 2025Grant permission
Planning permission for attic conversion with extended ridgeline to side from hi
Permission · Dun Laoghaire Rathdown County Council, D25B/0601/WEB
10 Oct 2025S5 dec exempt
Installation of a rendered external wall insulation system.
Section 5 · Dun Laoghaire Rathdown County Council, REF16325
29 Sept 2025Grant permission
The development will consist of the provision of a roof terrace on the flat roof
Permission · Dun Laoghaire Rathdown County Council, D25B/0538/WEB
13 Sept 2025Declare invalid (site notice)
Planning permission for attic conversion with extended ridgeline to side from hi
Permission · Dun Laoghaire Rathdown County Council, D25B/0502/WEB
9 Jul 2025Grant permission
The development will consist of: • Construction of no.1 dormer to rear and no.2
Permission · Dun Laoghaire Rathdown County Council, D25B/0390/WEB
The 25 most recent of over 100 applications.
Source: National Planning Applications, Department of Housing, Local Government and Heritage, CC BY 4.0. Applicants are not shown.
Nature and heritage
Designated sites and recorded monuments
Designated sites
No designated site (Special Area of Conservation, Special Protection Area, Natural Heritage Area or proposed one) touches the townland of Trimleston or Owenstown.
Recorded monuments
No recorded monument lies in the townland of Trimleston or Owenstown.
Architectural heritage
No building of the National Inventory of Architectural Heritage stands in the townland of Trimleston or Owenstown.
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).
Ground and risks
Radon, landslides, flooding
- Radon
- At the centre of the townland of Trimleston or Owenstown, about 1 in 20 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 low.
- Terrain model
- LiDAR of the Office of Public Works, flown in 2011, at 2 m: tile OPW_3257 (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.
Homes sold
Property Price Register
No address of the register names Trimleston or Owenstown with five sales or more. The sales of the area are on the page of Co. Dublin.
The townland
- Name
- Trimleston or Owenstown · Baile Eoghain
- Area
- 304,935 m² (30.49 ha, 75.35 acres)
- Civil parish
- Taney, and its townlands
- Barony
- Rathdown
- Electoral division
- Blackrock-Glenomena, the unit of the census
- Census 2022
- 2,000 people lived in 698 households in the Blackrock-Glenomena electoral division. 69% of households owned their home. 7% of homes were built since 2001. 7% of dwellings stood vacant on census night, and 0% were holiday homes.
- Neighbouring townlands
- Booterstown, Intake, Merrion, Mount Merrion or Callary, Priesthouse, Roebuck
- Placenames
- Trimleston or Owenstown 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.