RefusedExtensionDecided 24 February 2026

1 Cowper Road and Cowper Mews, Rathmines, Dublin 6, D06X3Y1

Construction of rear and dormer extensions to an existing house.

3504/25 · Dublin City Council · Lodged 22 December 2025

Reference: 3504/25
Authority: Dublin City Council
Register status: Decided
Type: Permission
Received: 22 December 2025

Summary

AI-generated

The development consists of a new 11.5 sq m extension to the rear of the house at second-floor level. It also includes a 4.5 sq m dormer extension to the rear at the third-floor/attic level to provide additional and enlarged bedrooms.

Extensionextensiondormerattic

Storeys: 4
Floor area: 16 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

The development will consist of a new 11.5sq m extension to rear of house at 2nd floor level and a new 4.50 sq. M dormer extension to thr rear of the house at 3rd. Floor/attic level . The proposed extensions will proviide for additional and enlarged bedrooms .

Land-use zoning

What this land is zoned for

Z2: Residential Neighbourhoods (Conservation Areas)RS

“To protect and/or improve the amenities of residential conservation areas.”

National zoning type: Existing residential

Objective set by the 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
4 Cowper Road, Rathmines, Dublin 6	Jun 2026	€1,608,050	23 m
173 Upper Rathmines Rd, Dartry, Dublin 6	Jul 2025	€1,230,000	40 m
188 Upper Rathmines Rd, Rathmines, Dublin 6	Mar 2025	€1,415,000	52 m
10 Cowper Road, Rathmines, Dublin 6	Sept 2025	€1,750,000	62 m
197 Upper Rathmines Rd, Rathmines, Dublin 6	Apr 2026	€1,560,000	71 m
176 Rathmines Road Upper, Rathmines, Dublin	Jun 2026	€293,750	74 m
72 Cowper Road, Rathmines, Dublin 6	Apr 2026	€1,825,000	90 m
46 Frankfort Ave, Rathgar, Dublin 6	Sept 2025	€1,335,000	105 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 received22 December 2025
Decision due24 February 2026
Decision issued24 February 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

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Community

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