Auburn, 37 Saint Thomas Road, Mount Merrion, Blackrock, Dublin, A94EN83
Two-storey extension, roof alterations, and external insulation at a house in Mount Merrion.
D23B/0241 · Dun Laoghaire Rathdown County Council · Lodged 19 May 2023
- Reference
- D23B/0241
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 19 May 2023
Summary
AI-generatedThe project involves removing an existing dormer and two chimneys to construct a two-storey extension above the lower ground floor. It also includes raising the roof ridgeline, adding new dormer windows, installing external insulation, and changing the roof finish from tiles to slates.
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
A) removal of existing flat-roof dormer and 2no chimneys to side and rear of existing dwelling, and b) the construction of a two-storey extension above existing lower ground floor level. C) alterations to existing attic-floor level including new pitched-roof dormer to side, new mansard roof with dormer windows to side and rear, and rooflights. D) raise main ridgeline of roof to match existing high point, e) change of roof material finish from tiles to slates, f) external insulation to entire dwelling, and all associated 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 13 March 2024.
Notified floor area: 16 m²
2 commencement notices are linked to this development.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 32 St Thomas Rd, Mount Merrion, Dublin | Mar 2025 | €1,900,000 | 69 m |
| 14 St Thomas Road, Mount Merrion, Blackrock | Jul 2025 | €1,750,000 | 145 m |
| 14 Mather Rd North, Mount Merrion, Dublin | Jan 2026 | €1,845,000 | 201 m |
| 33 North Avenue, Mount Merrion, Blackrock | Sept 2025 | €2,365,000 | 221 m |
| 9 Cypress Road, Mount Merrion, Co Dublin | Jun 2026 | €1,230,000 | 252 m |
| 12 Foster Ave, Mt Merrion, Dublin | Oct 2025 | €1,410,000 | 259 m |
| 19 Cypress Road, Mount Merrion, Dublin | Jun 2026 | €1,210,000 | 293 m |
| Apartments 1-11, Fitzwilliam Court, The Rise Mount Merrion | Dec 2025 | €4,400,000 | 324 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 received19 May 2023
- Decision due13 July 2023
- Decision issued11 July 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
Alterations to D23B/0241. A) Extended living space to rear of dwelling with flat roof and rooflight, to…
37, Auburn, Saint Thomas' Road, Mount Merrion, Blackrock, Dublin, A94EN83
D23B/0572Dún Laoghaire–RathdownLodged 12 Dec 2023Alterations
- Awaiting decisionAt this site
Compliance with Condition No. 3 of Reg. Ref. D23B/0241
Auburn, 37 Saint Thomas Road, Mount Merrion, Blackrock, Dublin, A94EN83
D23B/0241/C1Dún Laoghaire–RathdownLodged 27 Mar 2024Other
- GrantedAt this site
Permission for two extensions to side of house, comprising of the extensions of lower ground floor dining…
Burnside, 39 Saint Thomas Road, Mount Merrion, Co Dublin
D15B/0113Dún Laoghaire–RathdownLodged 7 Apr 2015Retention
- GrantedAt this site
Permission for development is sought for alterations to previously approved planning permission reg. ref.…
Burnside, 39, Saint Thomas Road, Mount Merrion, Co Dublin
D17A/0576Dún Laoghaire–RathdownLodged 23 Jun 2017Alterations
- GrantedAt this site
Permission for retention of changes made to the site levels to the rear garden and permission for new screen…
Burnside, 39 Saint Thomas Road, Mount Merrion, Co Dublin
D19A/0113Dún Laoghaire–RathdownLodged 18 Feb 2019Retention
- GrantedAt this site
Permission for demolition of existing extensions to the side and rear and the construction of a single storey…
Burnside, St Thomas Road, Mount Merrion, Co Dublin
D16A/0438Dún Laoghaire–RathdownLodged 16 Jun 2016Extension
- WithdrawnAt this site
Retention Permission for development. Permission is sought for retention of changes made to the site levels…
Burnside, 39, Saint Thomas Road, Mount Merrion, Co Dublin
D18A/0553Dún Laoghaire–RathdownLodged 11 Dec 2018Retention
- Granted30 m away
Works to existing house including the demolition of existing garage and outhouse, and the construction of a…
33, Saint Thomas' Road, Mount Merrion, Co. Dublin
D08A/0427Dún Laoghaire–RathdownLodged 17 Oct 2008Extension
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
A) removal of 2no existing chimneys to side and rear of existing dwelling, and b) the construction of a…
11, Oakdown Road, Rathfarnham, Dublin 14, D14A263
D23B/0177Dún Laoghaire–RathdownLodged 20 Apr 2023
- GrantedExtension
(a) The construction of minor extensions to the ground floor and to the first floor area of the dwelling, (b)…
No. 12 Cork Street, Town-Plots, Kinsale, Co. Cork
205734corkLodged 13 Aug 2020
- GrantedExtension
Extension and alterations to existing dwelling to include: removal of 2 no. chimneys, replace existing roof…
41, Wilson Road, Blackrock, Dublin, A94P3X6
D23B/0458Dún Laoghaire–RathdownLodged 11 Oct 2023
- GrantedExtension
A) removal of existing chimney to side and existing extensions to side and rear, and b) the construction of a…
56, Trees Road Lower, Mount Merrion, Dublin, A94X9X5
D25B/0739/WEBDún Laoghaire–RathdownLodged 23 Dec 2025
- InvalidExtension
Extension and alterations to existing dwelling to include removal of 2 no. chimneys, replace existing roof…
41, Wilson Road, Mount Merrion, Blackrock, Dublin, A94P3X6
D23B/0427Dún Laoghaire–RathdownLodged 15 Sept 2023
- GrantedExtension
(A) The removal of the existing single storey extension to the front of the existing dwelling, (B) The…
Chimney Corner , Old Long Hill Kilmacanogue , Co. Wicklow
23868WicklowLodged 28 Nov 2023
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