13, Ardagh Crescent, Newtownpark Avenue, Blackrock, Co. Dublin, A94K702
Retention of a front extension and garage conversion, plus permission for a new garden room for home business use.
D24B/0451/WEB · Dun Laoghaire Rathdown County Council · Lodged 10 February 2025
- Reference
- D24B/0451/WEB
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 10 February 2025
Summary
AI-generatedThis application seeks retention permission for a front extension and partial garage conversion for ancillary family accommodation. It also seeks permission for a new extended garden room to be used for a small-scale home-based business.
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 retention of extension to front and partial garage conversion to side, with internal modifications to create family ancillary accommodation. Permission is also sought for a new extended garden room area at rear to create a small scale home based economic activity with 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.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 25 Ardagh Grove, Blackrock, Dublin | Nov 2025 | €765,000 | 83 m |
| 29 Belmont Lawn, Stillorgan Rd, Blackrock | Dec 2025 | €1,132,000 | 110 m |
| 2 Ardagh Grove, Blackrock, Dublin | Oct 2025 | €795,000 | 187 m |
| 50 Ardagh Park, Blackrock, Dublin | Jun 2025 | €855,000 | 199 m |
| 521 The Galloping Green, Stillorgan, Dublin | Aug 2025 | €575,000 | 231 m |
| Apt 509, Galloping Green, Stillorgan | Mar 2025 | €475,000 | 231 m |
| 54 Beechwood Court, Stillorgan, Dublin 18 | Oct 2025 | €470,000 | 241 m |
| 9 Ardagh Court, Blackrock, Dublin | Feb 2026 | €1,270,000 | 251 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 received10 February 2025
- Decision due7 March 2025
- Decision issued7 March 2025
- Appeal submitted3 April 2025
- Appeal decided16 July 2025
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. The development will consist of: Amendment to existing panning reference…
11 Ardagh Crescent, Galloping Green North, Blackrock, Co. Dublin, A94 YX47
D21B/0172Dún Laoghaire–RathdownLodged 12 Apr 2021Alterations
- GrantedAt this site
Permission for development. The development will consist of: First-floor attic conversion to give 3…
11 Ardagh Crescent, Galloping Green North, Blackrock, Co. Dublin, A94 YX47
D20B/0424Dún Laoghaire–RathdownLodged 21 Dec 2020Extension
- GrantedAt this site
Permission is sought to demolish existing front porch and garage at side, erect single storey extension at…
9, Ardagh Crescent, Blackrock, Co. Dublin
D12B/0075Dún Laoghaire–RathdownLodged 13 Mar 2012Extension
- Granted40 m away
Permission for new flat roofed glazed porch with door to side, at front
27 Ardagh Crescent, Blackrock, Co Dublin
D17B/0340Dún Laoghaire–RathdownLodged 18 Jul 2017Extension
- Granted50 m away
2 storey extension to rear. [LOCATION] 29 Ardagh Crescent, Blackrock, Co. Dublin. [LOCATION]
29 Ardagh Crescent, Blackrock, Co. Dublin.
D02B/0352Dún Laoghaire–RathdownLodged 23 May 2002Extension
- Granted50 m away
Permission for the construction of a part single-storey, part two-storey detached dwelling house to the east…
38 Belmont Lawn, Stillorgan, Co Dublin
D16A/0389Dún Laoghaire–RathdownLodged 27 May 2016New dwelling
- Granted50 m away
Permission is sought for an 8m2 single storey porch to the south east gable and a 26.5m2 first floor…
21, Ardagh Crescent, Blackrock,Co Dublin
D09A/0183Dún Laoghaire–RathdownLodged 2 Jun 2009Extension
- Refused50 m away
Permission is sought for a) Proposed side two storey extension with rear single storey extension with partial…
38, Belmont Lawn, Stillorgan Road, Blackrock, Co. Dublin
D15A/0691Dún Laoghaire–RathdownLodged 3 Nov 2015New dwelling
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedRetention
Permission is sought for retention of the ground and first floor rear and side extension, conversion of…
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D10A/0603Dún Laoghaire–RathdownLodged 3 Nov 2010
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216770corkLodged 12 Oct 2021
- Awaiting decision
Permission for development which consists of: construction of a first floor side extension, rear roof…
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2660214Galway CityLodged 22 Jun 2026
- GrantedRetention
Permission for the Retention of the conversion of a garage and utility room to habitable spaces; permission…
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D17B/0441Dún Laoghaire–RathdownLodged 25 Jan 2018
- InvalidExtension
Permission is sought for 1st floor extension over existing ground floor extension to rear, new ground floor…
49A, Plunkett Avenue, Finglas West, Dublin 11
WEB1711/19Dublin CityLodged 3 Dec 2019
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