8, Greenfield Road, Mount Merrion, Blackrock, Dublin, A94D2E9
Alterations to a previously approved extension, including a deeper rear extension and a new dormer window for an attic conversion.
D24A/1036/WEB · Dun Laoghaire Rathdown County Council · Lodged 26 February 2025
- Reference
- D24A/1036/WEB
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 26 February 2025
Summary
AI-generatedThe applicant is seeking changes to a previously granted planning permission. The alterations include adding 1.0m in depth to the ground and first-floor rear extensions, a new flat-roof dormer window to the rear roof slope for an attic conversion, and changes to the attic rooflights.
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
Alterations to previously granted planning (under reg. Ref d24a/0817/web) for development at 8 greenfield road, mount merrion, blackrock, co. Dublin, a94 d2e9. The proposed alterations will consist of a) additional 1.0m in depth to proposed rear extensions to ground and first floor, b) new flat-roof dormer window to rear of existing roof slope to facilitate attic conversion, c) changes to rooflights at attic level, 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.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 18 Greenfield Road, Mount Merrion, Blackrock | Oct 2025 | €1,350,000 | 110 m |
| 28 Merrion Hall, Mount Merrion Ave, Blackrock | Feb 2025 | €600,000 | 140 m |
| St Anthonys, 19 Greygates, Stillorgan Rd | Oct 2025 | €1,650,000 | 146 m |
| Apartment 28, Booterstown Wood, Booterstown Avenue | Aug 2025 | €448,000 | 180 m |
| 25 Booterstown Wood, Booterstown Ave, Booterstown | Dec 2025 | €538,000 | 180 m |
| 26 Ashurst, Mount Merrion Ave, Blackrock | Aug 2025 | €510,500 | 201 m |
| Apartment No. 7, Greysgate Hall, Mount Merrion | Jan 2025 | €640,000 | 208 m |
| 41 Booterstown Wood, South Hill Park, Booterstown | May 2026 | €565,000 | 213 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 received26 February 2025
- Decision due25 March 2025
- Decision issued19 March 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
A) removal of existing single-storey extension, sheds and garage to side and rear of dwelling, and b) the…
8, Greenfield Road, Mount Merrion, Blackrock, Co. Dublin, A94 D2E9
D24A/0817/WEBDún Laoghaire–RathdownLodged 10 Oct 2024Extension
- InvalidAt this site
Alterations to previously granted planning (under Reg. Ref D24A/0817/WEB) for development at 8 Greenfield…
8, Greenfield Road, Mount Merrion, Blackrock, Co. Dublin, A94D2E9
D24A/1003/WEBDún Laoghaire–RathdownLodged 17 Dec 2024Alterations
- Compliance submissionAt this site
Compliance with Condition No.5 of Reg Ref No. D24A/0817/WEB
8, Greenfield Road, Mount Merrion, Blackrock, Co. Dublin, A94 D2E9
D24A/0817/WEB/C1Dún Laoghaire–RathdownLodged 11 Jul 2025Other
- GrantedAt this site
Extension, part single and part 2 storey to side and rear of existing dwelling. The works also include…
6, Greenfield Road, Mount Merrion, Co. Dublin.
D04A/1287Dún Laoghaire–RathdownLodged 8 Nov 2004Extension
- Granted50 m away
Retention of single storey garden studio with canopy over patio area (52.05m2 footprint)
6, Sycamore Road, Mount Merrion, Dublin, A94C3H7
D23B/0063Dún Laoghaire–RathdownLodged 17 Feb 2023Retention
- Refused50 m away
Permission sought for change of use from domestic residential to short term lets residential
6, Sycamore Road, Mount Merrion, Blackrock, Dublin, A94C3H7
D23A/0428Dún Laoghaire–RathdownLodged 27 Jun 2023Change of use
- Granted60 m away
Permission is sought for the extension and alterations of existing semi-detached dwelling. The development…
26 Greygates, Mount Merrion, County Dublin, A94 P3X4
D21A/0799Dún Laoghaire–RathdownLodged 7 Sept 2021Extension
- Granted60 m away
Permission is sought for the extension and alterations of existing semi-detached dwelling. The development…
26 Greygates, Mount Merrion, County Dublin, A94 P3X4
D21A/0178Dún Laoghaire–RathdownLodged 3 Mar 2021Extension
Related developments
Similar applications
Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- InvalidAlterations
Alterations to previously granted planning (under Reg. Ref D24A/0817/WEB) for development at 8 Greenfield…
8, Greenfield Road, Mount Merrion, Blackrock, Co. Dublin, A94D2E9
D24A/1003/WEBDún Laoghaire–RathdownLodged 17 Dec 2024
- GrantedExtension
The applicants intend to apply for permission for the development of an existing semi-detached dwelling at…
51, Sycamore Road, Mount Merrion, Blackrock, Dublin, A94K8X7
D25A/0121/WEBDún Laoghaire–RathdownLodged 18 Feb 2025
- GrantedExtension
Renovations and extensions to the existing two-storey, detached house at 46 Wilson Road, Mount Merrion,…
46, Wilson Road, Mount Merrion, Blackrock, Dublin, A94E8F5
D25B/0120/WEBDún Laoghaire–RathdownLodged 6 Mar 2025
- InvalidExtension
Permission for development at 22 Woodlands Park, Mount Merrion Avenue, Blackrock, Co. Dublin, A94 PF22. The…
22, Woodlands Park, Mount Merrion Avenue, Blackrock, Co. Dublin, A94PF22
D24A/0763/WEBDún Laoghaire–RathdownLodged 24 Sept 2024
- GrantedExtension
Extension to rear of existing dwelling part single storey, part two storey, including associated ground works…
5 Greenfield Road, Mount Merrion, Co. Dublin.
D02B/0434Dún Laoghaire–RathdownLodged 10 Jun 2002
- GrantedRetention
Retention planning permission is sought by the applicant at 25 Green Road Blackrock, Co. Dublin, A94 A9P1.…
25, Green Road, Blackrock, Dublin, A94A9P1
D23B/0485/WEBDún Laoghaire–RathdownLodged 24 Oct 2023
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