40 Trimleston Gardens, Booterstown, Blackrock, Co Dublin, A94WP63
Rear ground floor extension, attic conversion with a dormer, and entrance relocation.
D22B/0403 · Dun Laoghaire Rathdown County Council · Lodged 9 September 2022
- Reference
- D22B/0403
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 9 September 2022
Summary
AI-generatedThe development involves removing the existing pitched roof over a rear extension to build a single-storey flat-roofed extension, relocating the entrance door, and converting the attic with a rear dormer extension.
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 is sought for development consisting of the removal of (i) the existing pitched roof with rooflights over the existing rear extension and a construction of (ii) a single storey flat roofed ground floor extension to the rear. (iii) entrance door relocation. (iv) attic conversion, including construction of flat roofed dormer attic floor extension to the rear. (v) 2 no. Velux rooflights to side pitch of main roof and 1 no. Velux to proposed dormer attic extension. (vi) internal modifi...
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 | 38 m |
| 46 Trimleston Gardens, Booterstown, Dublin | Jan 2025 | €1,200,000 | 48 m |
| 83 Fosterbrook, Stillorgan Rd, Mount Merrion | Apr 2026 | €1,106,000 | 60 m |
| 106 Fosterbrook, Stillorgan Road, Blackrock | Jun 2026 | €905,000 | 62 m |
| 80 Trimleston Gardens, Booterstown, Dublin | Mar 2026 | €985,000 | 97 m |
| 76 Fosterbrook, Stillorgan Rd, Dublin | Dec 2025 | €905,000 | 100 m |
| 53 Trimleston Gardens, Booterstown, Dublin | May 2025 | €1,160,000 | 106 m |
| 74 Fosterbrook, Stillorgan Rd, Stillorgan | May 2025 | €845,000 | 113 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 received9 September 2022
- Decision issued2 November 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
Conversion of the ground floor level garage to habitable living space — The construction of an additional…
40, Trimleston Gardens, Blackrock, Dublin
D08A/0803Dún Laoghaire–RathdownLodged 11 Jul 2008Extension
- GrantedAt this site
Permission for a single storey flat roof extension to rear. First floor extension to side over previously…
38 Trimleston Gardens, Booterstown, Co Dublin A94 H314
D19B/0055Dún Laoghaire–RathdownLodged 5 Feb 2019Extension
- GrantedAt this site
For proposed garage conversion and extension at first floor with pitched roof to match existing roof. New…
42, Trimleston Gardens, Booterstown, Co. Dublin
D05B/0677Dún Laoghaire–RathdownLodged 13 Sept 2005Extension
- Granted40 m away
To provide for a driveway entrance
44, Trimleston Gardens, Booterstown, Co. Dublin
D05A/1232Dún Laoghaire–RathdownLodged 23 Sept 2005Alterations
- Granted40 m away
Permission is sought for development which consists of an attic conversion (gross floor area 25 sq.m) to…
86, Fosterbrook, Blackrock, Co. Dublin
D12B/0238Dún Laoghaire–RathdownLodged 17 Jul 2012Extension
- Invalid40 m away
Provision of structure to support deck, to rear of garden
32, Trimleston Gardens, Blackrock, Co. Dublin
D08B/0822Dún Laoghaire–RathdownLodged 11 Dec 2008Extension
- Refused40 m away
Permission sought for the construction of a 100sqm approx three bedroom, two storey detached dwelling house…
37, Trimleston Gardens, Booterstown, Co Dublin
D06A/1951Dún Laoghaire–RathdownLodged 21 Dec 2006New dwelling
- Refused40 m away
Provision of structure to support deck, to rear of garden
32, Trimleston Gardens, Booterstown, Co. Dublin
D09B/0054Dún Laoghaire–RathdownLodged 6 Feb 2009Alterations
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
Permission is sought to demolish the side garage, kitchen/dining rooms and chimney and to construct single…
16, Whitebarn Road, Churchtown, Dublin 14
D12A/0282Dún Laoghaire–RathdownLodged 21 Sept 2012
- GrantedExtension
The development for which permission is sought consists of construction of a single storey flat roof…
86 Latchford Park, Castaheny, Dublin 15, D15 FH51
FW25A/0560EFingalLodged 23 Dec 2025
- GrantedExtension
Permission is sought for extension, demolition and alteration works comprising of the removal of ground floor…
4 Dale Drive (on the corner of Dale Close), Stillorgan, Co. Dublin, A94 ED28
D22B/0316Dún Laoghaire–RathdownLodged 1 Jul 2022
- GrantedExtension
Permission is sought. The proposed development consist of; (i) demolition of existing single storey extension…
'Kephas', 4 Corrig Road, Dalkey, Co. Dublin
D20A/0545Dún Laoghaire–RathdownLodged 1 Apr 2021
- GrantedExtension
Permission is sought for development which consists of — Demolition for rear outhouses and partial demolition…
Seaverge, Coliemore Road, Dalkey, Co. Dublin
D13A/0001Dún Laoghaire–RathdownLodged 31 May 2013
- GrantedExtension
Permission is sought for the extension of gable wall to meet extended roof, the conversion of the existing…
87, Trimleston Gardens, Booterstown, Blackrock, Dublin, A94P209
D24B/0383/WEBDún Laoghaire–RathdownLodged 29 Aug 2024
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