GrantedExtensionDecided 19 May 2026

Rossbeg, 24 Deerpark Road, Mount Merrion, Co Dublin, A94E0P4

Demolition of sheds and major extension of a detached house in Mount Merrion to create a six-bedroom home.

D26A/0228/WEB · Dun Laoghaire Rathdown County Council · Lodged 24 March 2026

Reference: D26A/0228/WEB
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Permission
Received: 24 March 2026

Summary

AI-generated

The project involves the demolition of two rear garden sheds and extensive alterations to an existing single-storey, three-bedroom house. It will be extended to a six-bedroom dwelling, presenting as two storeys at the front and three storeys at the rear, including a new pitched roof and a multi-level rear extension.

Extensionextensiondemolitionrenovation

Storeys: 3

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

Alterations and extensions to the existing single storey, three bedroom detached dwelling that will include: demolition of the two garden sheds and other structures to the rear; alterations and extensions to the existing single storey, three bedroom detached dwelling to create an extended six bedroom detached dwelling, that presents as being two storey to the front, and three storey to the rear that will be facilitated by the following works: internal alterations to the existing house; removal of the roof; and elevational changes to the front, side and rear of the existing house; an additional storey plus new pitched roof with hipped roof elements, above the existing house; a new two storey, and part three storey rear extension (at lower ground, ground and 1st floor level). The ground floor extension will connect to a terrace that will sit over the lower ground floor extension and will connect via external stairs to the rear garden; alterations to the front boundary wall that will create a new pedestrian entrance gate and widened vehicular entrance with sliding gate off deer park road with an amended driveway; and all landscaping, boundary treatments, drainage, suds and all ancillary works required to facilitate the development.

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.

Recent sales nearby

within 500 m

Residential Property Price Register sales within 500 metres of this site
Address	Date	Price	Distance
24 Deerpark Road, Mount Merrion, Co Dublin	Jun 2025	€1,270,000	9 m
4 Wilson Crescent, Mount Merrion, Dublin	Nov 2025	€1,210,000	42 m
6 Wilson Crescent, Mount Merrion, Dublin	Jul 2025	€980,000	76 m
19 Wilson Rd, Mount Merrion, Dublin	Mar 2026	€1,116,111	88 m
44 Deerpark Rd, Mount Merrion, Dublin	Dec 2025	€1,250,000	110 m
Innisfallen, 26 Mather Rd South, Mount Merrion	Sept 2025	€1,325,000	114 m
8 Wilson Road, Mount Merrion, Co Dublin	Nov 2025	€900,000	124 m
4 Deerpark Road, Mount Merrion, Co Dublin	Nov 2025	€1,590,000	156 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 March 2026
Decision due19 May 2026
Decision issued19 May 2026

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.