33, Saint Cabríni, Mount Merrion Avenue, Blackrock, Dublin, A94P5X5
Demolition of a rear return section to build a new storey-and-a-half extension, with restoration works to a protected structure.
D23A/0578 · Dun Laoghaire Rathdown County Council · Lodged 6 September 2023
- Reference
- D23A/0578
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 6 September 2023
Summary
AI-generatedThis application proposes the demolition of a section of the existing rear return at upper ground floor level to construct a new storey-and-a-half extension. External modifications include the restoration of existing railings, granite steps, and refurbishment of windows and doors.
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
Demolition of a section of the existing rear return at the upper ground floor and the subsequent construction of a new storey & a half height extension to the rear. External modifications to include restoration of existing railings & granite entrance steps, refurbishment of all existing windows & doors (to include slimline double glazing). Modifications to front include a new door ope to s/w elevation at lower ground floor. Modifications to rear to include alterations to window opes on rear r...
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 21 January 2025.
Notified floor area: 294 m²
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 43 Mount Merrion Ave, Blackrock, Dublin | Feb 2025 | €865,000 | 50 m |
| 44 Westfield, Rock Rd, Sion Hill | Jan 2025 | €730,000 | 59 m |
| Apt 17 Westfield, Sion Hill, Blackrock Dublin | Jul 2025 | €476,000 | 83 m |
| 11 Westfield, Sion Hill, Blackrocknot full market price | Jun 2026 | €211,218 | 90 m |
| 2 Rock Road Place, Blackrockprice excludes VAT | Oct 2025 | €1,387,665 | 119 m |
| 2 Sydney Mews, Sydney Avenue, Blackrock | Jun 2025 | €1,300,000 | 131 m |
| 15 Brooklawn, Mount Merrion Ave, Blackrock | Mar 2025 | €875,000 | 148 m |
| 31 Castledawson, Sion Hill Rock Road, Blackrock | May 2026 | €620,000 | 157 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 received6 September 2023
- Decision issued27 October 2023
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- RefusedAt this site
Removal of a section of the existing random rubble north/east facing boundary wall at Peafield (Lane) &…
33, Saint Cabríni, Mount Merrion Avenue, (corner of Mount Merrion Avenue & Peafield) Blackrock, Dublin, A94P5X5
D23A/0709Dún Laoghaire–RathdownLodged 14 Nov 2023Alterations
- GrantedAt this site
Demolition of an existing non historic shed to the rear garden and subsequent construction of a new…
Saint Cabríni, 33 Mount Merrion Avenue, Blackrock, Dublin, A94P5X5
D24A/0199Dún Laoghaire–RathdownLodged 21 Oct 2024Alterations
- InvalidAt this site
Permission to demolish existing detached garage, and for the construction of a new detached garage/2 storey…
33, Mount Merrion Avenue, Blackrock, Co. Dublin
D16A/0174Dún Laoghaire–RathdownLodged 18 Mar 2016New dwelling
- GrantedAt this site
Demolition of the existing non-historic, single storey rear return extension at the upper ground floor level…
31, Mount Merrion Avenue, Blackrock, Dublin, A94Y0Y3
D24A/0495/WEBDún Laoghaire–RathdownLodged 21 Oct 2024Extension
- GrantedAt this site
Permission is sought for a rear single storey extension at hall floor level, an internal porch behind main…
37, Mount Merrion Avenue, Blackrock, Co. Dublin
D11A/0032Dún Laoghaire–RathdownLodged 18 May 2011Extension
- RefusedAt this site
Permission for the demolition of an existing single storey extension to the rear of a three storey terraced…
29, Mount Merrion Avenue, Blackrock, Co. Dublin
D19A/0411Dún Laoghaire–RathdownLodged 13 Jun 2019Extension
- Granted30 m away
The development will consist of the demolition of an existing garage to the rear and construction of a new…
Saint Annas, 27, Mount Merrion Avenue, Blackrock, Dublin, A94Y6V6 (A Protected Structure)
D25A/0168/WEBDún Laoghaire–RathdownLodged 4 Mar 2025Extension
- Exempt — no permission needed30 m away
Installation of 9no. Solar panels on roof of 27 Mount Merrion Avenue
Saint Annas, 27 Mount Merrion Avenue, Blackrock, Dublin, A94Y6V6 (A Protected Structure)
REF10824Dún Laoghaire–RathdownLodged 19 Sept 2024Energy
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
Demolition of existing single-storey extension to the side and rear. Construction of a two-storey pitched…
21 Butterfield Drive, Rathfarnham, Dublin 14, D14PX25
SD25B/0607WSouth DublinLodged 17 Oct 2025
- GrantedAlterations
Development consisting of part demolition and modified reconstruction of non original 2 storey rear return,…
2 Auburn Villas, Carrickbrennan Road, Monkstown, Co Dublin A94 HX03
D19A/0625Dún Laoghaire–RathdownLodged 23 Aug 2019
- GrantedExtension
Demolition of existing single storey return to the rear (5sq.m.); construction of new two storey extension to…
8, Willsbrook Avenue, Lucan, Co. Dublin
SD09B/0482South DublinLodged 14 Dec 2009
- GrantedExtension
Proposed demolition of the existing small two-storey rear return and lean-to structures and the construction…
14, Monkstown Crescent, Monkstown, Dublin, A94DE29. Protected Structure
D23A/0510Dún Laoghaire–RathdownLodged 6 Nov 2023
- GrantedExtension
Demolition of existing rear single storey extensions — Construction of new single storey flat roof rear…
Doonbeg, Silchester Road, Glenageary, Dublin, A96T3H2
D25A/0495Dún Laoghaire–RathdownLodged 20 Jun 2025
- GrantedExtension
The development will consist of:- * Demolition of existing single storey extension to rear; * Construction of…
112, Parnell Road, Dublin 12
4530/18Dublin CityLodged 4 Dec 2018
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.