43, Mount Merrion Avenue, Blackrock, Dublin, A94D2N4 (A Protected Structure)
Demolition of rear structures and construction of new extensions at a protected structure in Blackrock.
D25A/0181 · Dun Laoghaire Rathdown County Council · Lodged 3 June 2025
- Reference
- D25A/0181
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 3 June 2025
Summary
AI-generatedThe development involves removing an existing two-storey return, outhouse, conservatory, and shed. It proposes constructing a new two-storey return, a double-height extension, and a single-storey extension to the rear, alongside conservation-grade window upgrades and internal refurbishment.
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 is sought for (a) the removal of the existing two-storey return (part demolished to neighbouring property), modern single-storey timber outhouse, conservatory and shed, all to the rear. (b) the construction of a two-storey return with associated rooflight, a double height extension with associated rooflight and a single storey extension with a canopy, all to the rear. (c) minor internal reconfiguration, refurbishment and associated restoration works throughout the house. (d) a new conservation grade roof-light to the rear/ north-west facing main roof. (e) refurbishment/upgrade works to existing timber sash windows with slimlite double glazing and replacement of modern windows with timber sash windows. (f) all ancillary site, boundary and landscaping works. (a protected structure)
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 |
|---|---|---|---|
| 43 Mount Merrion Ave, Blackrock, Dublin | Feb 2025 | €865,000 | 6 m |
| 44 Westfield, Rock Rd, Sion Hill | Jan 2025 | €730,000 | 77 m |
| Apt 17 Westfield, Sion Hill, Blackrock Dublin | Jul 2025 | €476,000 | 130 m |
| 11 Westfield, Sion Hill, Blackrocknot full market price | Jun 2026 | €211,218 | 135 m |
| 15 Brooklawn, Mount Merrion Ave, Blackrock | Mar 2025 | €875,000 | 139 m |
| 2 Sydney Mews, Sydney Avenue, Blackrock | Jun 2025 | €1,300,000 | 155 m |
| 4 Cross Avenue, Blackrock, Co Dublin | Apr 2025 | €1,890,000 | 159 m |
| 2 Rock Road Place, Blackrockprice excludes VAT | Oct 2025 | €1,387,665 | 161 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 received3 June 2025
- Decision due30 June 2025
- Decision issued30 June 2025
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Compliance submissionAt this site
Compliance with Condition No.3 of Reg Ref No. D25A/0181
43, Mount Merrion Avenue, Blackrock, Dublin, A94D2N4 (A Protected Structure)
D25A/0181/C1Dún Laoghaire–RathdownLodged 19 Aug 2025Other
- Compliance submissionAt this site
Compliance with Condition No.4 of Reg Ref No. D25A/0181
43, Mount Merrion Avenue, Blackrock, Dublin, A94D2N4 (A Protected Structure)
D25A/0181/C3Dún Laoghaire–RathdownLodged 15 Jan 2026Other
- Compliance submissionAt this site
Compliance with Condition No.5 of Reg Ref No. D25A/0181
43, Mount Merrion Avenue, Blackrock, Dublin, A94D2N4 (A Protected Structure)
D25A/0181/C2Dún Laoghaire–RathdownLodged 19 Aug 2025Other
- Granted30 m away
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
- Invalid50 m away
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
- Refused50 m away
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
- Granted50 m away
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
- Granted50 m away
Demolition of a section of the existing rear return at the upper ground floor and the subsequent construction…
33, Saint Cabríni, Mount Merrion Avenue, Blackrock, Dublin, A94P5X5
D23A/0578Dún Laoghaire–RathdownLodged 6 Sept 2023Extension
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
PROTECTED STRUCTURE: Permission is sought for works to a protected structure incorporating the demolition of…
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4396/22Dublin CityLodged 5 Jul 2022
- GrantedExtension
PROTECTED STRUCTURE: Planning permission is sought for the demolition of existing single storey utility/wc…
18, Cambridge Road, Rathmines, Dublin 6, D06 R2V4
3228/22Dublin CityLodged 7 Feb 2022
- GrantedExtension
Permission for development. The development will consist of works to a Protected Structure; the demolition of…
1 De Vesci Terrace, Dun Laoghaire, Co. Dublin, A96 HX48
D22A/0117Dún Laoghaire–RathdownLodged 27 May 2022
- RefusedExtension
PROTECTED STRUCTURE: Planning permission is sought for proposed works consisting of the following principal…
70, Brighton Road, Dublin 6
3959/19Dublin CityLodged 9 Sept 2019
- GrantedExtension
PROTECTED STRUCTURE: Planning permission is sought for (i) Removal of 2 non-original single-storey extensions…
No. 55, Mountpleasant Avenue Lower, Dublin 6, D06 W017 (backing onto Fortescue Lane)
2700/20Dublin CityLodged 14 May 2020
- GrantedExtension
Permission is sought for the (1) construction of a new single storey extension to the rear of the house…
39, Sandycove Road, Dun Laoghaire, Co. Dublin
D20A/0187Dún Laoghaire–RathdownLodged 14 Sept 2020
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