55, South Avenue, Mount Merrion, Co. Dublin
Demolition of a rear extension to build a new single-storey rear extension and convert the side garage into a habitable room.
D04B/0597 · Dun Laoghaire Rathdown County Council · Lodged 29 July 2004
- Reference
- D04B/0597
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 29 July 2004
Summary
AI-generatedThe project consists of demolishing an existing single-storey rear extension and replacing it with a new single-storey rear extension. Additionally, the existing side garage will be converted into a habitable room with a new pitched roof.
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) demolition of existing single storey extension to rear and construction of new single storey extension to rear. (b) conversion of existing garage to side to habitable room, complete with construction of new pitched roof over.
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 |
|---|---|---|---|
| 62 Thornhill Oaks, Blackrock, Co. Dublinprice excludes VAT | Mar 2026 | €859,031 | 41 m |
| Thornhill, Cherry Garth, Mount Merrion | Aug 2025 | €1,750,000 | 47 m |
| 63 Thornhill Oaks, Blackrock, Co. Dublin | May 2026 | €870,000 | 54 m |
| 32 South Ave, Mount Merrion, Dublin | Jan 2026 | €1,725,000 | 64 m |
| 28 South Ave, Mount Merrion, Dublin | Sept 2025 | €1,400,000 | 82 m |
| 24 South Ave, Mount Merrion, Dublin | Dec 2025 | €1,580,000 | 98 m |
| 49 Thornhill Oaks, Cherry Garth, Mount Merrionprice excludes VAT | Jan 2025 | €1,145,374 | 99 m |
| 49 Thornhill Oaks, Cherry Garth, Mount Merrion | Dec 2025 | €1,430,135 | 101 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 received29 July 2004
- Decision issued10 September 2004
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 development. The development will consist of: The demolition of the single storey extension to…
53 South Avenue, Mount Merrion, Co. Dublin, A94 E6W4
D21B/0045Dún Laoghaire–RathdownLodged 11 Feb 2021Extension
- GrantedAt this site
A) demolition of existing (single storey) garage/kitchen extension to side and removal of existing chimney to…
57, South Avenue, Mount Merrion, Stillorgan, Co. Dublin, A94A7P1
D26A/0019/WEBDún Laoghaire–RathdownLodged 16 Jan 2026Extension
- GrantedAt this site
Demolish an existing garage to side and single storey flat roof kitchen to therear of the existing semi…
51, SOUTH AVENUE, MOUNT MERRION, CO. DUBLIN
D04B/0703Dún Laoghaire–RathdownLodged 20 Sept 2004Extension
- Granted50 m away
Permission for conversion of garage to breakfast room, new hipped roof over existing first floor flat roof…
47 South Avenue, Mount Merrion, Co Dublin
D19B/0472Dún Laoghaire–RathdownLodged 12 Nov 2019Extension
- Granted50 m away
Demolition of the existing garage and the construction of a new two storey extension to the side with new…
84, Trees Road, Mount Merrion, Co. Dublin
D04B/0002Dún Laoghaire–RathdownLodged 15 Mar 2004Extension
- Part granted, part refused50 m away
Permission is sought for; a) A proposed first floor extension to front, above existing garage conversion; b)…
40 South Avenue, Mount Merrion, Blackrock, Co. Dublin, A94X5N0
D26B/0064/WEBDún Laoghaire–RathdownLodged 3 Feb 2026Extension
- Granted60 m away
Two storey with attic dormer, 4 bedroom detached dwelling incorporating alteration to existing driveway…
86, Trees Road Lower, Mount Merrion, Blackrock, Dublin, A94V2A0
D24A/0234Dún Laoghaire–RathdownLodged 10 Apr 2024New dwelling
- Compliance submission60 m away
Compliance with Condition No. 3 of Reg Ref No. D24A/0234
86, Trees Road Lower, Mount Merrion, Blackrock, Dublin, A94V2A0
D24A/0234/C2Dún Laoghaire–RathdownLodged 22 Jan 2025Other
Related developments
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Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.
- GrantedExtension
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WEB1478/24Dublin CityLodged 23 Apr 2024
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D07B/0770Dún Laoghaire–RathdownLodged 23 Aug 2007
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WEB2831/24Dublin CityLodged 23 Dec 2024
- GrantedExtension
Demolition of the existing garage to the side and the construction of new two storey extension with pitched…
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SD14B/0046South DublinLodged 25 Feb 2014
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Demolition of existing garage and construction of single storey extensions to side and rear of house and roof…
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