GrantedExtensionDecided 13 March 2026

3, The Foster's, Mount Merrion, Dublin, A94TK64

Demolition of a garage and construction of a first floor extension and single storey rear/side extension to a house in Mount Merrion.

D26A/0035/WEB · Dun Laoghaire Rathdown County Council · Lodged 23 January 2026

Reference: D26A/0035/WEB
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Permission
Received: 23 January 2026

Summary

AI-generated

The proposed development consists of widening the vehicular entrance to 3.5m and demolishing the existing garage and garden structure. It also includes raising the roof ridge height to construct a first floor structure, alongside a single storey extension to the rear and side containing a new garage and plant room.

Extensionextensiondemolitionsuburban

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

The proposed development shall consist of
Alterations to existing vehicular entrance to increase in width to 3.5m. 2)demolition of the existing garage and single storey garden structure to rear
Alterations to the existing roof structure to increase ridge height and allow for construction of a first floor structure. 4)single storey extension to the rear and side including for new garage and plant room
All associated alterations and demolitions, site, drainage, landscaping and ancillary 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

Residential Property Price Register sales within 500 metres of this site
Address	Date	Price	Distance
12 Foster Ave, Mt Merrion, Dublin	Oct 2025	€1,410,000	94 m
14 St Thomas Road, Mount Merrion, Blackrock	Jul 2025	€1,750,000	116 m
Apartments 1-11, Fitzwilliam Court, The Rise Mount Merrion	Dec 2025	€4,400,000	178 m
32 St Thomas Rd, Mount Merrion, Dublin	Mar 2025	€1,900,000	209 m
Apartment 4 Greygates, Roebuck Ave, Mount Merrionprice excludes VAT	Jan 2026	€190,000	224 m
5 Greygates, Stillorgan Road, Mount Merrion	Jun 2025	€1,690,000	278 m
Apt 100, Belfield Park, Stillorgan Road	Jan 2026	€465,000	279 m
47 Belfield Park, Stillorgan Rd, Dublin	Dec 2025	€380,000	324 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 January 2026
Decision due19 March 2026
Decision issued13 March 2026
Appeal submitted8 April 2026
Appeal decided6 July 2026

Related developments

Similar applications

Ranked by what these developments actually propose, not by matching words — so you can see how comparable applications were decided.

Community

Discussion

What local people think about this application.

Nobody watching yet

Community sentiment

No votes yet

Nobody 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.

No comments yet. Be the first to say what you think about 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.