8, St Thomas Road, Mount Merrion, Blackrock, Co Dublin, A94Y598
Revisions to a previously approved development to include a reduced utility room and a first-floor ensuite extension.
D22A/0980 · Dun Laoghaire Rathdown County Council · Lodged 8 December 2022
- Reference
- D22A/0980
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 8 December 2022
Summary
AI-generatedThe application seeks revisions to planning permission D20A/0962. Changes include a reduced single-storey utility and plant room to the rear, and a new first-floor ensuite and dressing room extension to the east gable.
Generated from the description above by an AI model and may contain mistakes. The council’s description is the authoritative record.
Official record
Development description
Permission for development consisting of revisions to previously approved development d20a/0962 to include reduced single storey utility and plant room to rear and new first floor ensuite and dressing room extension to east gable serving existing first floor bedroom and all associated roof and site works.
Land-use zoning
What this land is zoned for
“A To provide residential development and improve residential amenity while protecting the existing residential amenities”
Objective set by the COUNTY DEVELOPMENT PLAN 2022-2028 (2022–2028). The planning authority decides each application on its own merits — this is the zoning context, not a compliance assessment.
Read the zoning objectives in the development planBuilt & sold
What happened next
Beyond the decision: whether this development was built, and what property here has sold for.
Built — construction complete
A commencement notice records works starting on 14 November 2023.
Notified floor area: 405.8 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 14 St Thomas Road, Mount Merrion, Blackrock | Jul 2025 | €1,750,000 | 44 m |
| Apartments 1-11, Fitzwilliam Court, The Rise Mount Merrion | Dec 2025 | €4,400,000 | 152 m |
| 32 St Thomas Rd, Mount Merrion, Dublin | Mar 2025 | €1,900,000 | 176 m |
| Apartment 4 Greygates, Roebuck Ave, Mount Merrionprice excludes VAT | Jan 2026 | €190,000 | 184 m |
| 5 Greygates, Stillorgan Road, Mount Merrion | Jun 2025 | €1,690,000 | 188 m |
| 12 Foster Ave, Mt Merrion, Dublin | Oct 2025 | €1,410,000 | 205 m |
| Apartment No. 7, Greysgate Hall, Mount Merrion | Jan 2025 | €640,000 | 267 m |
| Apartment 9 Greygates, Roebuck Ave, Mount Merrionprice excludes VAT | Jan 2026 | €190,000 | 276 m |
Nearby properties, not this site — a guide to local values.
Sources: Building Control Management System (commencement notices) and the Residential Property Price Register, licensed under CC BY 4.0. Records are matched to this application by location and may not be exhaustive; always confirm against the official source before relying on them.
Key dates
Timeline
- Application received8 December 2022
- Decision issued9 February 2023
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- GrantedAt this site
Permission for development consisting of replacement single storey kitchen/pantry and utility room/plant room…
8, St Thomas Road, Mount Merrion, Blackrock, Co Dublin, A94Y598
D20A/0962Dún Laoghaire–RathdownLodged 17 Dec 2020Extension
- GrantedAt this site
New single storey garden room to rear of existing house and new relocated roof light over existing side…
8 St. Thomas Road,, Mount Merrion,, Co. Dublin.
D06B/0843Dún Laoghaire–RathdownLodged 18 Sept 2006Extension
- GrantedAt this site
Permission for demolition of existing 2 storey dwelling house and attached garage and construction of new…
Saint Penryst, 6 Saint Thomas Road, Mount Merrion, Blackrock, Co Dublin
D15A/0855Dún Laoghaire–RathdownLodged 8 Mar 2016New dwelling
- Granted40 m away
Redevelopment of existing 2 storey 3 bedroom semi-detached house. Works to include the demolition of existing…
14, Saint Thomas Road, Mount Merrion, Blackrock, Co. Dublin, A94 AE89
D25B/0626/WEBDún Laoghaire–RathdownLodged 6 Nov 2025Extension
- Refused40 m away
The development willconsist of the demolition of an existing shed, the provision of a detached two storey,…
4, Saint Thomas Road, Mount Merrion, County Dublin
D06A/1793Dún Laoghaire–RathdownLodged 7 Dec 2006New dwelling
- Granted40 m away
Permission for development consisting of demolition of existing single storey extensions, construction of…
4, Saint Thomas Road, Mount Merrion, Co. Dublin
D13A/0290Dún Laoghaire–RathdownLodged 11 Jun 2013Extension
- Granted50 m away
The development will consist of the demolition of an existing conservatory and outdoor wc/shed to rear and…
5, The Rise, Mount Merrion, Co. Dublin
D05A/0776Dún Laoghaire–RathdownLodged 20 Jun 2005Extension
- Granted60 m away
Permission for a domestic extension and alterations to existing semi-detached dwelling comprised of: single…
11 The Rise, Mount Merrion, Co. Dublin
D21A/0036Dún Laoghaire–RathdownLodged 15 Jan 2021Extension
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedExtension
Permission for development. The proposed development will consist of an amendment to previously granted…
4, Edward Terrace, Sorrento Road, Dalkey, Co Dublin
D21A/0925Dún Laoghaire–RathdownLodged 20 Oct 2021
- RefusedExtension
Permission for development. The development will consist of changes to previously approve planning…
20 Balally Drive, Dundrum, Dublin 16
D21B/0360Dún Laoghaire–RathdownLodged 15 Jul 2021
- GrantedAlterations
Permission sought for alterations to works given permission under planning permission ref. D22A/0720, with…
87 Monkstown Ave, Monkstown, Co. Dublin, A94 PK70
D23B/0330Dún Laoghaire–RathdownLodged 11 Jul 2023
- GrantedAlterations
Permission for development consisting of alterations to previously granted planning permission ref. D19A/0472…
4 Farmleigh Close, Stillorgan, Co. Dublin A94 KA06
D20B/0029Dún Laoghaire–RathdownLodged 13 Feb 2020
- GrantedExtension
Permission for the construction of single storey extension to rear of existing dwellinghouse consisting of…
Monacnapa , Blarney , Co.Cork
2039653Cork CityLodged 5 Nov 2020
- RefusedCommercial
Permission is sought to amend previously permitted development (Reg. Ref. D09A/0891) by changing the single…
Aclare House Nursing Home, 4/5, Tivoli Terrace South, Dun Laoghaire, Co. Dublin
D11A/0056Dún Laoghaire–RathdownLodged 7 Feb 2011
Community
Discussion
What local people think about this application.
Community sentiment
No votes yetNobody has voted on this application yet.
Community sentiment — a straw poll of people who visited this page, not a statutory submission. To make a valid observation you must submit it to the planning authority.
Sign in to have your say on this application.
No comments yet. Be the first to say what you think about this application.
Sign in to join the discussion on this application.
Comments are moderated and are the opinions of the people who wrote them. They form no part of the statutory planning process — to make a valid observation you must submit it to the planning authority.