14 Thornhill Road, Mount Merrion, Co Dublin
Renovation and extension of a house in Mount Merrion, including converting the garage and adding a bedroom above.
D16B/0199 · Dun Laoghaire Rathdown County Council · Lodged 24 August 2016
- Reference
- D16B/0199
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 24 August 2016
Summary
AI-generatedThe project involves renovating and extending the existing ground and first-floor levels to the rear and side of the dwelling. It also includes converting the existing integral garage with a new first-floor bedroom built over it.
- 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
Permission for renovation and extension of existing dwelling at ground and first floor levels to rear and side of dwelling, conversion of existing integral garage with first floor bedroom over.
Built & sold
What happened next
Beyond the decision: whether this development was built, and what property here has sold for.
Built — construction complete
A commencement notice records works starting on 16 November 2016.
Recent sales nearby
within 500 m| Address | Date | Price | Distance |
|---|---|---|---|
| 24 South Ave, Mount Merrion, Dublin | Dec 2025 | €1,580,000 | 99 m |
| 28 South Ave, Mount Merrion, Dublin | Sept 2025 | €1,400,000 | 107 m |
| 33 Clonmore Rd, Mount Merrion, Dublin | Apr 2026 | €1,425,000 | 108 m |
| 14 South Avenue, Mount Merrion, Co Dublin | Sept 2025 | €920,000 | 109 m |
| 32 South Ave, Mount Merrion, Dublin | Jan 2026 | €1,725,000 | 123 m |
| 49 Thornhill Oaks, Cherry Garth, Mount Merrionprice excludes VAT | Jan 2025 | €1,145,374 | 197 m |
| 50 Cherry Garth, Mount Merrion, Blackrock | May 2025 | €1,275,000 | 198 m |
| 49 Thornhill Oaks, Cherry Garth, Mount Merrion | Dec 2025 | €1,430,135 | 206 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 received24 August 2016
- Decision issued16 September 2016
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 for a development consisting of alterations and extension to existing dwelling house consisting of…
12 Ath Lethan , Racecourse Road , Dundalk
17508LouthLodged 3 Jul 2017
- Awaiting decisionExtension
Permission for renovation of existing dwelling, construction of rear extension and domestic garage, plus all…
Deerpark Townland , Drum , Boyle
22327RoscommonLodged 29 Jun 2022
- GrantedExtension
Permission for erection of extension to rear of existing dwelling house and alterations to front elevation,…
44 Rockgrove, Midleton, Co. Cork,
1056013corkLodged 3 Nov 2010
- GrantedExtension
Permission is sought for proposed conversion of existing garage with first floor extension over and…
30, Sweetmount Park, Dundrum, Dublin 14
D17B/0351Dún Laoghaire–RathdownLodged 27 Jul 2017
- GrantedExtension
Permission for the conversion of existing garage to side of to habitable use with first floor extension over…
48 Delaney Park , Dublin Hill , Cork
2241389Cork CityLodged 9 Sept 2022
- InvalidExtension
Permission for a garage conversion to residential use, single storey extension to rear and first floor…
77 Fosters Avenue, Mount Merrion, Co Dublin
D20B/0068Dún Laoghaire–RathdownLodged 10 Mar 2020
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.