20, Springhill Park, Blackrck, Co. Dublin, A94H671
Construction of a rear kitchen extension, garage conversion to a granny flat, and attic conversion.
D26A/0005/WEB · Dun Laoghaire Rathdown County Council · Lodged 8 January 2026
- Reference
- D26A/0005/WEB
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 8 January 2026
Summary
AI-generatedThe development consists of a single-storey rear kitchen extension, the conversion and extension of an existing garage for use as a granny flat, and an attic conversion for non-habitable space with a rear dormer window and front Velux windows.
- Storey
- 1
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
The development will consist of a single storey rear kitchen extension, conversion and extension of existing garage to use as a granny flat, conversion of the existing attic as non habitable space with dormer window to rear and 2 no. Velux to front and widening of the existing vehicular gate.
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 |
|---|---|---|---|
| 32 Springhill Park, Blackrock, Dublinnot full market price | Dec 2025 | €533,333 | 70 m |
| 17 Deansgrange Road, Blackrock, Co Dublin | Aug 2025 | €1,020,000 | 93 m |
| Rock View, Deans Grange Rd, Blackrock | Jun 2026 | €1,142,500 | 101 m |
| 18 Springhill Ave, Blackrock, Dublin | Sept 2025 | €770,000 | 170 m |
| 29a Brookville Park, Blackrock, Co Dublinnot full market price | Jan 2025 | €392,000 | 184 m |
| 70 Mount Albany, Blackrock, Dublin | Dec 2025 | €800,000 | 187 m |
| 12 Grange Grove, Stradbrook, Blackrock | Feb 2026 | €580,000 | 192 m |
| 3 St Fintans Villas, Deans Grange, Dublin | Mar 2026 | €525,000 | 212 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 received8 January 2026
- Decision due4 March 2026
- Decision issued12 February 2026
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
The development will consist of Retention of the extension and conversion of an existing garage for use as a…
20, Springhill Park,Blackrock, Dublin, A94H671
D26A/0191/WEBDún Laoghaire–RathdownLodged 11 Mar 2026Retention
- InvalidAt this site
The development will consist of Retention of the extension and conversion of an existing garage for use as a…
20, Springhill Park, Blackrock, Dublin, A94H671
D26A/0167/WEBDún Laoghaire–RathdownLodged 4 Mar 2026Retention
- Granted40 m away
For single storey porch/bathroom extension to front
9 Deansgrange Road, Blackrock, Dublin 18
D06B/0210Dún Laoghaire–RathdownLodged 14 Mar 2006Extension
- Granted40 m away
Single storey extension to the front of the existing house, internal alterations and associated external works
10, Deansgrange Road, Deansgrange, Dublin, A94T9C5
D26B/0104/WEBDún Laoghaire–RathdownLodged 18 Feb 2026Extension
- Granted40 m away
Attic conversion for storage use, including a rear dormer, two rooflights to the front roof slope, and a…
28, Springhill Park, Blackrock, Dublin, A94H027
D25B/0307/WEBDún Laoghaire–RathdownLodged 31 May 2025Extension
- Granted50 m away
Attic conversion with dormer to rear roof to accomodate stairs to allow conversion of attic into non…
7, Deansgrange Road, Blackrock, Dublin, A94T9V2
D23B/0499Dún Laoghaire–RathdownLodged 31 Oct 2023Extension
- Granted60 m away
Permission for a single storey development consisting of the conversion and extension of an attached garage…
21 Springhill Park, Deansgrange, Blackrock, Co Dublin A94 KX82
D18A/0517Dún Laoghaire–RathdownLodged 31 May 2018Extension
- Granted60 m away
Planning permission for the addition of an obscure glass attic gable window to existing house
19, Springhill Park, Deansgrange, Blackrock, Co. Dublin, A94EP94
D22B/0307Dún Laoghaire–RathdownLodged 24 Jun 2022Alterations
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
The development will consist of Retention of the extension and conversion of an existing garage for use as a…
20, Springhill Park,Blackrock, Dublin, A94H671
D26A/0191/WEBDún Laoghaire–RathdownLodged 11 Mar 2026
- GrantedExtension
Development will consist of a new gable wall to the side of the existing house. A new window at attic level…
131 Riverside Park, Clonshaugh, Dublin 17, D17 YF80
3046/25Dublin CityLodged 7 Feb 2025
- InvalidExtension
The development will consist of a porch to front , a single storey granny flat extension to side comprising…
96A Griffith Road, Glasnevin, Dublin 11
3240/25Dublin CityLodged 5 Jun 2025
- Part granted, part refusedExtension
Development will consist of a proposed new dormer roof to the side & rear of the existing house roof. A new…
50, Riverside Grove, Clonshaugh, Dublin 17
2443/19Dublin CityLodged 8 Mar 2019
- GrantedExtension
The development will consist of a new first floor flat roofed side extension to accommodate a new granny…
50, Auburn Road, Glenageary, Co. Dublin, A96T2H1
D26A/0291/WEBDún Laoghaire–RathdownLodged 13 Apr 2026
- GrantedExtension
Construction of a single storey rear extension to existing dwellinghouse, alterations to the window and door…
3 Maglin Drive, Maglin Road, Ballincollig,
146117corkLodged 1 Oct 2014
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