GrantedExtensionDecided 2 June 2017

30 Thornhill Road, Mount Merrion, Co Dublin

Demolition of a garage and extensions to build new single and two-storey extensions to the front, side, and rear.

D17A/0333 · Dun Laoghaire Rathdown County Council · Lodged 11 April 2017

Reference: D17A/0333
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Permission
Received: 11 April 2017

Summary

AI-generated

The project involves demolishing an existing garage, sheds, rear extension, and front porch. The applicant plans to construct a new front porch, a ground floor side and rear extension, and a first-floor side extension, alongside widening the vehicular access.

Extensionextensiondemolitionrenovation

Floor area: 83 m²

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 the demolition of existing garage structure and sheds, rear single story extension and front porch (totalling 47.10 sqm). The construction of new domestic extensions comprising single storey porch and bay window to front (4.01 sqm), ground floor extension to side and rear (58.6 sqm, first floor extension to side, (20.3 sqm), totalling 83.0 sqm. The works will also entail the increase in width of the vehicular access to 3.2m, a rear terrace and associated site works.

Land-use zoning

What this land is zoned for

Objective ARS

“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 plan

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 5 September 2017.

Recent sales nearby

within 500 m

Residential Property Price Register sales within 500 metres of this site
Address	Date	Price	Distance
33 Clonmore Rd, Mount Merrion, Dublin	Apr 2026	€1,425,000	120 m
7 Clonmore Rd, Mount Merrion, Dublin	Sept 2025	€1,400,000	140 m
24 South Ave, Mount Merrion, Dublin	Dec 2025	€1,580,000	171 m
28 South Ave, Mount Merrion, Dublin	Sept 2025	€1,400,000	172 m
32 South Ave, Mount Merrion, Dublin	Jan 2026	€1,725,000	178 m
14 South Avenue, Mount Merrion, Co Dublin	Sept 2025	€920,000	195 m
98 Lr Kilmacud Rd, Stillorgan, Dublin	Jul 2025	€1,187,000	203 m
17 Dale Close, Stillorgan	Nov 2025	€920,000	216 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 received11 April 2017
Decision issued2 June 2017

In the area

Applications near this site

Other planning applications within about 500 m — what else is being proposed or built nearby.

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.