'Hillsbrook', Grove Avenue, Blackrock, Co. Dublin, A94PX95
Demolition of a garage and sunroom to build a two-storey side and rear extension and widen the driveway.
D26A/0340/WEB · Dun Laoghaire Rathdown County Council · Lodged 4 May 2026
- Reference
- D26A/0340/WEB
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 4 May 2026
Summary
AI-generatedThe development involves removing an existing side garage and rear sunroom. In their place, a two-storey side and rear extension will be built, featuring dormer windows, a new front bay window, and a widened 3.5-metre vehicular entrance.
- Storeys
- 2
- Floor area
- 294 m²
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
A) removal of existing garage to side and sunroom to rear, and b) the construction of a two-storey extension to side and rear of existing dwelling, with rooflights and dormer window to front and rear, c) new bay window and alterations to fenestration to front of dwelling, d) widening of existing vehicular entrance to 3.5m, and all associated site works. Existing dwelling 143.0sqm; proposed dwelling 293.8sqm.
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 |
|---|---|---|---|
| 1 Woodlands Grove, Woodlands Park, Blackrocknot full market price · price excludes VAT | Mar 2026 | €353,000 | 48 m |
| Unit B, 43 Woodlands Park, Blackrock | May 2025 | €2,250,000 | 75 m |
| 26 Woodlands Grove, Blackrockprice excludes VAT | Apr 2026 | €1,233,480 | 98 m |
| 8 Avoca Grove, Grove Avenue, Blackrockprice excludes VAT | Mar 2025 | €1,255,507 | 116 m |
| Apt No. 6 Old Meadow, Grove Avenue, Blackrock | Oct 2025 | €1,125,000 | 116 m |
| 9 Avoca Grove, Blackrock, Co. Dublinprice excludes VAT | Apr 2026 | €1,233,480 | 117 m |
| 13 Villa Nova, Mount Merrion Ave, Blackrock | Mar 2026 | €540,000 | 117 m |
| Apt 158 - The Elms, Mount Merrion Avenue, Co Dublin | Nov 2025 | €641,000 | 130 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 received4 May 2026
- Decision due29 June 2026
- Decision issued29 June 2026
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Granted30 m away
Permission is sought for retention of amendments to previously approved planning application no. D04B/0093.…
Gleneevin, Grove Avenue, Blackrock, Co. Dublin
D09B/0356Dún Laoghaire–RathdownLodged 13 Aug 2009Retention
- Granted30 m away
Demolitions, internal and external renovations (to include alterations to entrance gate and to front boundary…
Gleneevin, Grove Avenue, Blackrock, Co. Dublin.
D04B/0093Dún Laoghaire–RathdownLodged 11 Feb 2004Extension
- Granted30 m away
Permission is sought for the demolition of rear shed, the demolition of single storey ground floor…
Crannard, Grove Avenue, Blackrock, Dublin, A94TF25
D24A/0337/WEBDún Laoghaire–RathdownLodged 17 May 2024Extension
- Granted40 m away
Alterations to include alterations to window and door opes, replacement of existing windows with timber up…
Larchmont, Grove Avenue, Blackrock, Co. Dublin
D03A/0223Dún Laoghaire–RathdownLodged 5 Mar 2003Extension
- Granted50 m away
Permission for development consisting of an existing single storey kitchen / dining area on the west…
Kinara, 3, Priory Avenue, Stillorgan, Co. Dublin
D17A/1111Dún Laoghaire–RathdownLodged 18 Dec 2017Extension
- Granted60 m away
The demolition of the existing house and outhouses and construction of 3 No. 4-bedroom two storey detached…
Judeville, Grove Avenue, Blackrock, Co. Dublin
D08A/0889Dún Laoghaire–RathdownLodged 20 Mar 2009Housing estate
- Granted60 m away
Permission is sought for development comprising: (i) demolition of existing two storey dwelling and ancillary…
45 Woodlands Park, Blackrock, Co. Dublin (A94 F248)
D22A/0202Dún Laoghaire–RathdownLodged 28 Sept 2022Apartments
- Invalid60 m away
(a) the renovation and extension of the existing dwelling with partial demolition to create a part…
Judeville, Grove Avenue, Blackrock, Dublin, A94RC82
D26A/0086/WEBDún Laoghaire–RathdownLodged 11 Feb 2026Extension
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
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 2024
- GrantedExtension
Two storey extension to front, side and rear of existing dwelling with small balcony to rear; single storey…
11, Corrybeg, Templeogue, Dublin 6W
SD19B/0216South DublinLodged 29 May 2019
- RefusedExtension
Two storey extension to the side of existing dwelling with roof lights, new bay window to front, single…
42, Ballytore Road, Rathfarnham, Dublin 14, D14 FF22.
SD18B/0072South DublinLodged 27 Feb 2018
- GrantedExtension
Removal of existing garage and kitchen to side of dwelling; construction of a two-storey extension to front…
42, Ballytore Road, Rathfarnham, Dublin 14, D14 FF22
SD21B/0570South DublinLodged 11 Nov 2021
- GrantedExtension
Alterations to existing dwellinghouse, namely demolition of carport and sunroom to sides of dwelling,…
Cloverfield, Mitchellsfort, Watergrasshill, Co. Cork
195063corkLodged 26 Apr 2019
- GrantedExtension
Removal of existing single-storey garage and annex to side; construction of a two-storey extension to front…
40, Crannagh Park, Dublin 14
SD21B/0355South DublinLodged 22 Jun 2021
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