GrantedExtensionDecided 16 October 2025

40, Wilson Road, Mount Merrion, Blackrock, Dublin, A94H2Y9

Extension, refurbishment, and attic conversion of a house in Mount Merrion.

D25B/0472 · Dun Laoghaire Rathdown County Council · Lodged 25 August 2025

Reference: D25B/0472
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Permission
Received: 25 August 2025

Summary

AI-generated

The project involves the partial demolition of external walls and the existing rear hipped roof. It will include a ground-floor rear extension, an attic conversion with a redesigned rear roof, a pitched roof dormer to the front and side, and internal reorganisation.

Extensionextensionatticrefurbishmentdormer

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 extension, refurbishment and attic conversion. The development will consist of the partial demolition of external walls and the existing hipped roof to the rear of the property. We intend to construct (a) a ground floor extension to the rear of the property (b) convert the attic (c) extend and redesign the roof to the rear of the property (d) add a pitched roof dormer to the front and side of the property and (e) internal reorganisation.

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
19 Cypress Road, Mount Merrion, Dublin	Jun 2026	€1,210,000	109 m
55 Wilson Road, Mount Merrion, Blackrockprice excludes VAT	Nov 2025	€1,585,903	109 m
56 Wilson Road, Mount Merrion, Blackrockprice excludes VAT	Apr 2026	€1,475,771	116 m
19 Wilson Rd, Mount Merrion, Dublin	Mar 2026	€1,116,111	118 m
44 Deerpark Rd, Mount Merrion, Dublin	Dec 2025	€1,250,000	123 m
58 Wilson Road, Mount Merrion, Blackrockprice excludes VAT	Mar 2026	€1,550,660	127 m
47 Deerpark Rd, Mount Merrion, Blackrock	Mar 2025	€800,000	141 m
9 Cypress Road, Mount Merrion, Co Dublin	Jun 2026	€1,230,000	163 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 received25 August 2025
Decision due17 October 2025
Decision issued16 October 2025

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

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Community

Discussion

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