26 Trimleston Gardens, Booterstown, Blackrock, Co. Dublin
Dormer roof extension to the rear of the house to create a new bedroom and ensuite.
D22B/0255 · Dun Laoghaire Rathdown County Council · Lodged 23 May 2022
- Reference
- D22B/0255
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 23 May 2022
Summary
AI-generatedThe development will consist of a dormer roof extension to the rear roof plane to create a new habitable bedroom and ensuite bathroom at attic level. It includes internal alterations, a new stairs from the first floor, and three new Velux roof windows to the front roof plane.
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
Permission for dormer roof extension to rear roof plane as new habitable bedroom and internal alterations comprising (a) new stairs from first floor landing to new bedroom at attic level, (b) new enusite bathroom at attic level, (c) addition of 3 no. New velux roof windows to front roof plane and (e) 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 |
|---|---|---|---|
| 31 Trimleston Gardens, Booterstown, Blackrock | Oct 2025 | €968,000 | 43 m |
| 80 Trimleston Gardens, Booterstown, Dublin | Mar 2026 | €985,000 | 59 m |
| 46 Trimleston Gardens, Booterstown, Dublin | Jan 2025 | €1,200,000 | 69 m |
| 83 Fosterbrook, Stillorgan Rd, Mount Merrion | Apr 2026 | €1,106,000 | 107 m |
| 53 Trimleston Gardens, Booterstown, Dublin | May 2025 | €1,160,000 | 108 m |
| 106 Fosterbrook, Stillorgan Road, Blackrock | Jun 2026 | €905,000 | 121 m |
| 55 Trimleston Gardens, Booterstown, Co Dublin | Mar 2026 | €1,030,000 | 123 m |
| 76 Fosterbrook, Stillorgan Rd, Dublin | Dec 2025 | €905,000 | 126 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 received23 May 2022
- Decision issued15 July 2022
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
Permission for the widening of the existing pedestrian access gate (from c.1.1m to 3.5m) to provide a…
26 Trimleston Gardens, Booterstown, Co Dublin
D16A/0371Dún Laoghaire–RathdownLodged 24 May 2016Alterations
- Part granted, part refusedAt this site
Retention of existing widened vehicular entrance gateway to front and retention of existing covered decking…
27, Trimleston Gardens, Booterstown, Blackrock, Dublin, A94VK77
D24A/0057Dún Laoghaire–RathdownLodged 31 Jan 2024Retention
- InvalidAt this site
Vehicle entrance. [LOCATION] 27 Trimleston Gardens, Booterstown, Co. Dublin. [LOCATION]
27 Trimleston Gardens, Booterstown, Co. Dublin.
D02A/0282Dún Laoghaire–RathdownLodged 5 Apr 2002Alterations
- GrantedAt this site
Erection of a single storey extension to the rear and side at ground level together with the conversion of…
29, Trimleston Gardens, Booterstown, Co. Dublin
D04B/0846Dún Laoghaire–RathdownLodged 2 Mar 2005Extension
- GrantedAt this site
Permission. The proposed development will consist of a ground floor extension with 2 no. roof lights to the…
29 Trimleston Gardens, Booterstown, Blackrock, Co. Dublin
D21B/0520Dún Laoghaire–RathdownLodged 28 Sept 2021Extension
- Granted40 m away
Permission is sought for the demolition of an existing rear single storey lean-to extension; for the erection…
21, Trimleston Gardens, Booterstown, Co Dublin
D07B/0672Dún Laoghaire–RathdownLodged 23 Jul 2007Extension
- Invalid40 m away
Permission is sought for the demolition of an existing rear single storey lean-to extension; for the erection…
21, Trimleston Gardens, Booterstown, Co Dublin
D07B/0525Dún Laoghaire–RathdownLodged 13 Jun 2007Extension
- Granted40 m away
Permission for the widening of the existing driveway entrance and all associated site works
82 Trimleston Gardens, Booterstown, Co Dublin
D16A/0125Dún Laoghaire–RathdownLodged 26 Feb 2016Alterations
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
Planning permission for a dormer roof extension to rear roof plane and internal alterations comprising (a)…
34, Olivemount Road, Dublin 14, D14W354
D23B/0035Dún Laoghaire–RathdownLodged 1 Feb 2023
- GrantedExtension
Permission for a new dormer extension to create a new attic store room to rear with alterations to the…
296 Collinswood, Collins Avenue, Dublin 9
4288/23Dublin CityLodged 11 Aug 2023
- GrantedAlterations
Permission for Alterations to existing roof and storage space to include a dormer roof to the rear, new Velux…
63 Biscayne, Robswalls, Malahide, Co. Dublin
F24A/0399FingalLodged 2 May 2024
- GrantedExtension
Permission for the construction of — a single storey extension to the rear
6, Brookwood Lawn, Artane, Dublin 5
2990/21Dublin CityLodged 18 Jun 2021
- GrantedExtension
Permission for — New dormer type window extension to rear of converted attic space
2 Lakelands Drive, Stillorgan, Co. Dublin A94 AY96
D20B/0035Dún Laoghaire–RathdownLodged 10 Sept 2020
- GrantedExtension
Permission for rear extension & installation of dormer window & 2 velux windows to front existing roof. Works…
19, Willow Park Crescent, Glasnevin, Dublin 11
WEB1825/25Dublin CityLodged 14 Apr 2025
Community
Discussion
What local people think about this application.
Community sentiment
No votes yetNobody has voted on this application yet.
Community sentiment — a straw poll of people who visited this page, not a statutory submission. To make a valid observation you must submit it to the planning authority.
Sign in to have your say on this application.
No comments yet. Be the first to say what you think about this application.
Sign in to join the discussion on this application.
Comments are moderated and are the opinions of the people who wrote them. They form no part of the statutory planning process — to make a valid observation you must submit it to the planning authority.