3, Merrion Park, Blackrock, Co. Dublin, A94FR66
Ground floor extension and dormer attic conversion in Blackrock.
D26B/0176/WEB · Dun Laoghaire Rathdown County Council · Lodged 16 February 2026
- Reference
- D26B/0176/WEB
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- In progress
- Type
- Permission
- Received
- 16 February 2026
Summary
AI-generatedThe development consists of a ground floor extension to house an extended kitchen, dining, and snug living area. It also includes a dormer attic conversion to provide additional non-habitable space at the rear of the terraced house.
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 construction of a ground floor extension and dormer attic conversion to the rear of the existing two storey terraced house. The ground floor extension will house an extended kitchen and dining area, and will incorporate a new snug living area. The dormer attic conversion will provide additional non-habitable space. The proposal includes for localised alterations to existing landscaping, foul drainage connections, surface water drainage connections, and ancillary 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 |
|---|---|---|---|
| 87 Merrion Park, Hill Ave South, Blackrock | Dec 2025 | €840,000 | 87 m |
| 78 Merrion Park, Booterstown, Blackrock | Feb 2025 | €920,000 | 115 m |
| 17 Beechlawn, South Hill Ave, Blackrock | Nov 2025 | €602,002 | 118 m |
| 47 Merrion Park, Blackrock, Dublin | Nov 2025 | €790,101 | 125 m |
| 79 Merrion Park, Blackrock, Co Dublin | Nov 2025 | €1,330,000 | 126 m |
| 57 Merrion Park, Blackrock, Dublin | Apr 2025 | €760,000 | 128 m |
| 95 Merrion Park, Blackrock, Co. Dublin | Sept 2025 | €1,120,000 | 138 m |
| 13 Villa Nova, Mount Merrion Ave, Blackrock | Mar 2026 | €540,000 | 180 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 received16 February 2026
- Decision due20 May 2026
In the area
Applications near this site
Other planning applications within about 500 m — what else is being proposed or built nearby.
- Granted60 m away
Planning permission is sought for the construction of a two storey house extension to the side, a single…
26, Merrion Park, South Hill Avenue, Blackrock, Co. Dublin
D10B/0472Dún Laoghaire–RathdownLodged 26 Nov 2010Extension
- Granted60 m away
Permission is sought for the construction of a two storey house extension to the side and a single storey…
26, Merrion Park, South Hill Avenue, Blackrock, Co. Dublin.
D08B/0258Dún Laoghaire–RathdownLodged 9 Apr 2008Extension
- Granted60 m away
The development will consist of the addition of a dormer structure to the rear of the property to provide…
65, Merrion Park, Blackrock, Dublin, A94X279
D24B/0257/WEBDún Laoghaire–RathdownLodged 31 May 2024Retention
- Granted60 m away
For development consisting of two storey extension to the side part of which at the ground floor is to the…
65, Merrion Park, Blackrock, Co. Dublin
D06B/0820Dún Laoghaire–RathdownLodged 8 Sept 2006Extension
- Granted70 m away
Permission is sought for development. The development will consist of the construction of a single storey…
66 Merrion Park, Merrion, Blackrock, Co. Dublin, A94 D854
D20A/0543Dún Laoghaire–RathdownLodged 5 Aug 2020Extension
- Granted80 m away
Permission for conversion of attic space to non-habitable space with dormer to rear & velux rooflight to…
35 Merrion Park, Booterstown, Blackrock, Co. Dublin, A94D2X2
D21B/0443Dún Laoghaire–RathdownLodged 23 Aug 2021Extension
- Refused90 m away
Permission to construct 2 no. 2 storey dwelling houses with attic accommodation, 2 vehicular entrances and…
Hamilton Lodge (A Protected Structure Ref. RPS 374), Mount Merrion Avenue & South Hill Avenue, Blackrock, Co Dublin
D17A/0479Dún Laoghaire–RathdownLodged 26 May 2017New dwelling
- Granted90 m away
Permission is sought for the construction of one no. part single storey / part two storey dwelling houses,…
Rear of Hamilton Lodge (a Protected Structure Ref. RPS 374), Mount Merrion Avenue and South Hill Avenue, Blackrock, Co. Dublin
D18A/0611Dún Laoghaire–RathdownLodged 31 Aug 2018New 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.
- InvalidExtension
The development will consist of: Demolition of rear wall (partial) and all internal walls of existing…
67, Gordon Street, Ringsend, Dublin 4
2347/21Dublin CityLodged 8 Mar 2021
- GrantedExtension
Proposed attic conversion with new dormer window to the rear of the existing two storey terraced dwelling.…
47 Grosvenor Court, Clontarf, Dublin 3, D03XP68
3342/24Dublin CityLodged 8 Mar 2024
- GrantedExtension
Alterations and extensions to the existing 2 storey, dormer type terraced house. The development will consist…
32, Wainsfort Avenue, Terenure, Dublin 6W.
SD06B/0528South DublinLodged 12 Jul 2006
- GrantedExtension
The development consists of (i) a ground floor single storey extension to the side of existing dwelling with…
52 Hollybrook Road, Clontarf, Dublin 3
4580/22Dublin CityLodged 28 Jul 2022
- GrantedExtension
The development will consist of: (i) A new attic level conversion and dormer extension to include new…
19, Vernon Rise, Clontarf, Dublin 3
5080/22Dublin CityLodged 20 Oct 2022
- InvalidExtension
The development will consist alterations and extensions to the existing two-storey end of terrace house…
17 Ballyshannon Avenue, Kilmore, Dublin 5, D05EW92
3117/25Dublin CityLodged 14 Mar 2025
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