25 St. Thomas Road, Mount Merrion, Co Dublin.
Construction of a second-storey extension, a new front porch, and a front sunroom.
D07B/0951 · Dun Laoghaire Rathdown County Council · Lodged 26 November 2007
- Reference
- D07B/0951
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 26 November 2007
Summary
AI-generatedThe development includes a second-storey extension over an existing single-storey side structure. It also proposes a new front porch, a new front sunroom, and general alterations to the existing house.
- Storeys
- 2
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
Second storey extension over existing single storey (reconstructed) to side, new porch to front, new sun room to front, together with alterations to existing house.
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.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 14 St Thomas Road, Mount Merrion, Blackrock | Jul 2025 | €1,750,000 | 52 m |
| 32 St Thomas Rd, Mount Merrion, Dublin | Mar 2025 | €1,900,000 | 128 m |
| 12 Foster Ave, Mt Merrion, Dublin | Oct 2025 | €1,410,000 | 179 m |
| Apartments 1-11, Fitzwilliam Court, The Rise Mount Merrion | Dec 2025 | €4,400,000 | 212 m |
| Apartment 4 Greygates, Roebuck Ave, Mount Merrionprice excludes VAT | Jan 2026 | €190,000 | 253 m |
| 5 Greygates, Stillorgan Road, Mount Merrion | Jun 2025 | €1,690,000 | 274 m |
| 33 North Avenue, Mount Merrion, Blackrock | Sept 2025 | €2,365,000 | 276 m |
| 14 Mather Rd North, Mount Merrion, Dublin | Jan 2026 | €1,845,000 | 308 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 received26 November 2007
- Decision issued29 January 2008
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
Planning Permission is sought by the applicants for widening of existing vehicular entrance gate with 2no.…
23, St. Thomas Road, Mount Merrion, Blackrock, Co. Dublin, A94H778
D24A/0674Dún Laoghaire–RathdownLodged 30 Aug 2024Alterations
- Not exempt — permission neededAt this site
Element A — Replacement of existing Dormer window structure Element B
23 St Thomas' Road, Mount Merrion, Blackrock, Co.Dublin, A94H778
REF7224Dún Laoghaire–RathdownLodged 9 Jul 2024Alterations
- Granted50 m away
Permission for development consisting of works to existing house in particular the demolition of detached…
21 St Thomas Road, Mount Merrion, Co Dublin
D13B/0074Dún Laoghaire–RathdownLodged 6 Mar 2013Extension
- Granted60 m away
Permission for the demolition of existing detached dormer dwelling, single storey family flat to rear and…
29, Saint Thomas Road, Mount Merrion, Co. Dublin
D13A/0538Dún Laoghaire–RathdownLodged 22 Oct 2013New dwelling
- Granted60 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
- Granted60 m away
Permission for: (a) Single storey extension to rear (24 sqm) with slate finish roof and feature roof glazing.…
20, Saint Thomas Road, Mount Merrion, Co. Dublin
D14B/0140Dún Laoghaire–RathdownLodged 2 Jul 2014Extension
- Granted70 m away
Permission for development. The development will consist of alterations to existing 2 storey dwelling to…
Rear and side of, 22, St. Thomas Road, Mount Merrion, Blackrock, Co Dublin
D20A/0665Dún Laoghaire–RathdownLodged 18 Sept 2020Extension
- Granted70 m away
Permission for development to widen existing front vehicular site entrance
31, Saint Thomas Road, Mount Merrion, Blackrock, Co. Dublin
D13A/0268Dún Laoghaire–RathdownLodged 27 May 2013Alterations
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
Two storey extension at side with single storey porch to front and sunroom to rear of existing house and…
10, Tibradden Drive, Greenpark, Dublin 12
SD10B/0086South DublinLodged 15 Mar 2010
- GrantedExtension
Two storey extension to side with new sunroom, attic dormer and single storey extension to rear plus single…
1, Whitethorn Way, Palmerstown, Dublin 22.
SD06B/0119South DublinLodged 2 Mar 2006
- InvalidExtension
Two storey extension to front, side and rear of existing dwelling house including alterations to the existing…
The Orchard, Talbotstown, Brittas, Co.Dublin
SD03B/0381South DublinLodged 11 Jul 2003
- GrantedExtension
Two storey extension to side of existing house, placement of pitched roof over existing front porch, building…
32 Templeville Road, Templeogue, Dublin 6W.
S00B/0202South DublinLodged 31 Mar 2000
- GrantedExtension
(1) New upper storey extension to side, (2) new porch extension to front, (3) new sun room extension to rear,…
98, Cappaghmore Estate, Dublin 22
SD16B/0336South DublinLodged 13 Oct 2016
- GrantedExtension
Alterations & to construct first floor level extension, to replace existing first floor level accommodation &…
9, Salzburg, Clonskeagh, Dublin 14
D06B/0597Dún Laoghaire–RathdownLodged 30 Jun 2006
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