13 Thornhill Road, Mount Merrion, Co. Dublin.
Single-storey extension to the side and rear of the house with a new front porch.
D02B/0091 · Dun Laoghaire Rathdown County Council · Lodged 1 March 2002
- Reference
- D02B/0091
- Authority
- Dun Laoghaire Rathdown County Council
- Register status
- Decided
- Type
- Permission
- Received
- 1 March 2002
Summary
AI-generatedThe project consists of a single-storey extension to the side and rear of the existing residence. It also includes a new front porch and associated site works.
- Storey
- 1
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
Single storey extension to side and rear of existing residence with new porch and associated works. [location] 13 thornhill road, mount merrion, co. Dublin. [location]
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 |
|---|---|---|---|
| 33 Clonmore Rd, Mount Merrion, Dublin | Apr 2026 | €1,425,000 | 50 m |
| 28 South Ave, Mount Merrion, Dublin | Sept 2025 | €1,400,000 | 98 m |
| 32 South Ave, Mount Merrion, Dublin | Jan 2026 | €1,725,000 | 100 m |
| 24 South Ave, Mount Merrion, Dublin | Dec 2025 | €1,580,000 | 101 m |
| 14 South Avenue, Mount Merrion, Co Dublin | Sept 2025 | €920,000 | 154 m |
| 7 Clonmore Rd, Mount Merrion, Dublin | Sept 2025 | €1,400,000 | 160 m |
| Thornhill, Cherry Garth, Mount Merrion | Aug 2025 | €1,750,000 | 193 m |
| 62 Thornhill Oaks, Blackrock, Co. Dublinprice excludes VAT | Mar 2026 | €859,031 | 200 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 received1 March 2002
- Decision issued15 April 2002
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
Demolition of existing single storey extension to front, side and rear. Construction of new single storey…
15 Thornhill Road, Mount Merrion, Co. Dublin.
D02B/0895Dún Laoghaire–RathdownLodged 4 Dec 2002Extension
- GrantedAt this site
Raising pitched roof of existing extension to front. Alterations to front elevation including tyrolene…
15 Thornhill Road, Mount Merrion, Co. Dublin.
D02B/0436Dún Laoghaire–RathdownLodged 11 Jun 2002Extension
- GrantedAt this site
Permission for development at this site. The development will consist of — Demolition of existing garage
17, Thornhill Road, Mount Merrion, Dublin, A94EOW6
D20B/0358Dún Laoghaire–RathdownLodged 25 Feb 2021Extension
- GrantedAt this site
Permission for development consisting of the renovation of existing two storey house; the construction of a…
17, Thornhill Road, Mount Merrion, Co. Dublin
D13A/0256Dún Laoghaire–RathdownLodged 23 May 2013Extension
- Granted30 m away
The development will consist of the demolition of the existing garage, various outhouses and the removal of…
7, Thornhill Road, Mount Merrion, Blackrock, County Dublin, A94D1WS
D21A/0635Dún Laoghaire–RathdownLodged 7 Jul 2021Extension
- Granted40 m away
Permission for development at this site. The development will consist of widening the entrance gate to front…
18, Thornhill Road, Mount Merrion, Co. Dublin
D13A/0274Dún Laoghaire–RathdownLodged 29 May 2013Alterations
- Granted40 m away
Permission is being sought for the demolition of the existing ground floor garage and single storey extension…
5, Thornhill Road, Mount Merrion, Co. Dublin
D09A/0672Dún Laoghaire–RathdownLodged 19 Nov 2009Extension
- Granted50 m away
Permission for a domestic extension and alterations to existing semi-detached dwelling. The extension and…
3, Thornhill Road, Mount Merrion, Co. Dublin
D18B/0168Dún Laoghaire–RathdownLodged 11 Apr 2018Extension
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
Raising pitched roof of existing extension to front. Alterations to front elevation including tyrolene…
15 Thornhill Road, Mount Merrion, Co. Dublin.
D02B/0436Dún Laoghaire–RathdownLodged 11 Jun 2002
- GrantedExtension
Widening the front entrance and a single storey extension to the rear. [LOCATION] 1A Mather Road South, Mount…
1A Mather Road South, Mount Merrion, Co. Dublin.
D02A/0552Dún Laoghaire–RathdownLodged 14 Jun 2002
- RefusedExtension
Extension to the rear and side, roof conversion and alterations to the front entrance. [LOCATION] 106 The…
106 The Rise, Mount Merrion, Co. Dublin.
D02A/0079Dún Laoghaire–RathdownLodged 8 Feb 2002
- GrantedExtension
Ground floor extension to sides and rear, and for first floor extensions at sides. [LOCATION] 11 St. Thomas…
11 St. Thomas Mead, Mount Merrion, Co. Dublin.
D02B/0103Dún Laoghaire–RathdownLodged 5 Mar 2002
- GrantedExtension
168sqm extension to rear and side and roof conversion to 130 sqm house, and alterations to the front entrance…
106 The Rise, Mount Merrion, Co. Dublin
D02A/0419Dún Laoghaire–RathdownLodged 15 May 2002
- GrantedExtension
Demolish existing single storey side extension and chimney. Construct new side dormer extension and some…
1 Wilson Crescent, Mount Merrion, Co. Dublin.
D02B/0244Dún Laoghaire–RathdownLodged 25 Apr 2002
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.