56, Trees Road Lower, Mount Merrion, Dublin, A94X9X5
Demolition of existing extensions and construction of a new two-storey side extension and single-storey rear extension in Mount Merrion.
D25B/0739/WEB · Dun Laoghaire Rathdown County Council · Lodged 23 December 2025
- Reference
- D25B/0739/WEB
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 23 December 2025
Summary
AI-generatedThe project involves removing an existing side chimney and extensions to the side and rear. A new two-storey side extension with an extended ridge height, a single-storey rear extension, and alterations to the rear dormer with a small roof terrace will be constructed.
- Storeys
- 2
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 chimney to side and existing extensions to side and rear, and b) the construction of a new two-storey extension to side of dwelling, extending the existing ridge height and roof profile, with rooflights to front, c) new single-storey extension to rear, with rooflight, d) alterations to existing flat roof dormer to rear, with small roof terrace to side gable at attic level, e) alterations to fenestration and main entrance to front of dwelling, and all associated site works.
Built & 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 |
|---|---|---|---|
| 56 Trees Rd, Mount Merrion, Blackrock | Apr 2025 | €1,285,000 | 8 m |
| 56 Thornhill Oaks, Mount Merrionprice excludes VAT | Mar 2025 | €775,330 | 57 m |
| 31 Trees Rd, Mount Merrion, Blackrock | Nov 2025 | €1,740,000 | 60 m |
| 2 Cherrygarth, Mount Merrionprice excludes VAT | Oct 2025 | €881,057 | 65 m |
| 4 Cherry Garth, Mount Merrion, Blackrock | Aug 2025 | €1,650,000 | 103 m |
| Apt.28 - Thornhill Oaks, Cherry Garth - Mount Merrion, Blackrock | Jul 2025 | €999,999 | 113 m |
| 117 The Rise, Mount Merrion, Dublin | Mar 2025 | €1,701,001 | 117 m |
| 61 The Stables, Thornhill Oaks, Mount Merrionprice excludes VAT | Aug 2025 | €889,868 | 120 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 December 2025
- Decision due25 February 2026
- Decision issued24 February 2026
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