4, Ardagh Crescent, Blackrock, Dublin, A94R523
Extension and attic conversion of a house in Blackrock, including new dormer windows and a changed roof profile.
D23B/0140 · Dun Laoghaire Rathdown County Council · Lodged 30 March 2023
- Reference
- D23B/0140
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 30 March 2023
Summary
AI-generatedThe application seeks permission for a side extension and a change of the roof profile from hipped to a straight 'A' profile. It includes an attic conversion to create two bedrooms with dormer windows to the front and rear, a single-storey rear extension, and a two-storey mansard roof extension to the front.
- Storeys
- 3
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
Extension to side and change roof profile from hipped roof to straight 'a' profile. (2) attic conversion and to create two no. Bedrooms in the attic area. (3) two no. Dormer windows to rear and one no. Dormer window to front. (4) single storey extension to rear. (5) two storey mansard roof extension to front.
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 | 81 m |
| 14 Ardagh Avenue, Blackrock, Dublin | Sept 2025 | €875,000 | 156 m |
| 24 Ardagh Avenue, Blackrock, Dublin | Jun 2025 | €790,000 | 175 m |
| 29 Belmont Lawn, Stillorgan Rd, Blackrock | Dec 2025 | €1,132,000 | 177 m |
| 2 Ardagh Grove, Blackrock, Dublin | Oct 2025 | €795,000 | 190 m |
| 40 Ardagh Avenue, Blackrock, Dublin | Dec 2025 | €820,000 | 225 m |
| 50 Ardagh Park, Blackrock, Dublin | Jun 2025 | €855,000 | 226 m |
| Majella, Newtownpark Ave, Blackrock | Oct 2025 | €1,037,000 | 232 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 received30 March 2023
- Decision due24 May 2023
- Decision issued5 April 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
Extension to side and change roof profile from hipped to straight A profile. (2) Attic conversion and to…
4, Ardagh Crescent, Blackrock, Dublin, A94R523
D23B/0169Dún Laoghaire–RathdownLodged 12 Apr 2023Extension
- InvalidAt this site
Full planning permission for the following to the existing single storey fully serviced semi-detached house…
2, Ardagh Crescent, Blackrock, Dublin, A94W8C1
D25B/0561/WEBDún Laoghaire–RathdownLodged 2 Oct 2025Extension
- WithdrawnAt this site
Full planning permission for the following to the existing single storey fully serviced semi-detached house…
2, Ardagh Crescent, Blackrock, Co. Dublin, A94W8C1
D25B/0545/WEBDún Laoghaire–RathdownLodged 1 Oct 2025Extension
- Part granted, part refusedAt this site
Intend to apply for full planning permission for the following to the existing single storey fully serviced…
2, Ardagh Crescent, Newtownpark Avenue, Blackrock, Co. Dublin, A94W8C1
D25B/0568/WEBDún Laoghaire–RathdownLodged 7 Oct 2025Extension
- GrantedAt this site
Full planning permission for the following to the existing single storey fully serviced semi-detached house…
2, Ardagh Crescent, Blackrock, Dublin, A94W8C1
D25B/0738/WEBDún Laoghaire–RathdownLodged 23 Dec 2025Extension
- Granted30 m away
Retention for Alterations to D19B/0051 to include slight increase in size to 2 no. Dormers to front roof.…
3, Ardagh Drive, Blackrock, Dublin, A94VX86
D23B/0156Dún Laoghaire–RathdownLodged 5 Apr 2023Extension
- Granted30 m away
Permission for converting existing hipped roof to a side gable, two new dormer windows to front slope of…
3 Ardagh Drive, Blackrock, Co Dublin A94 VX86
D19B/0051Dún Laoghaire–RathdownLodged 5 Feb 2019Extension
- Granted40 m away
First floor attic conversion to give 2 additional bedrooms and bathroom. Raised gable to the side,…
12, Ardagh Crescent, Blackrock, Dublin, A94X240
D24B/0018Dún Laoghaire–RathdownLodged 19 Jan 2024Extension
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
Extension to side and change roof profile from hipped to straight A profile. (2) Attic conversion and to…
4, Ardagh Crescent, Blackrock, Dublin, A94R523
D23B/0169Dún Laoghaire–RathdownLodged 12 Apr 2023
- GrantedExtension
New two storey extension to side and a new single storey extension to rear; conversion of attic to useable…
1, Ellensborough Downs, Kiltipper, Tallaght, Dublin 24
SD16B/0152South DublinLodged 12 Aug 2016
- RefusedExtension
A two storey extension to the side / front, a single storey extension to the front, a single storey extension…
62, Balally Park, Dublin 16
D08A/1398Dún Laoghaire–RathdownLodged 22 Dec 2008
- GrantedExtension
Single storey extension to front and rear and a new two storey extension to side of existing house, for…
64, Old Bawn Avenue, Tallaght, Dublin 24
SD06B/0348South DublinLodged 15 May 2006
- GrantedExtension
Change of roof profile from hipped end to half hipped gable end and extending over existing two storey flat…
25, Barton Drive, Dublin 14
SD20B/0106South DublinLodged 25 Mar 2020
- GrantedExtension
Two storey extension to the front; attic conversion with 2 dormer windows to the side and rear of the main…
30, Ferncourt Avenue, Firhouse, Dublin 24.
SD15B/0007South DublinLodged 16 Jan 2015
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