GrantedExtensionDecided 24 February 2026

2, Ardagh Crescent, Blackrock, Dublin, A94W8C1

Attic conversion with new dormers, a side extension, and partial garage demolition in Blackrock.

D25B/0738/WEB · Dun Laoghaire Rathdown County Council · Lodged 23 December 2025

Reference: D25B/0738/WEB
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Permission
Received: 23 December 2025

Summary

AI-generated

The project involves converting the existing attic with new front and rear dormer windows and a side gable window. It also includes a redesign of the front porch, partial demolition of the domestic garage, and the addition of a split-level single-storey side extension.

Extensionextensionattic conversionsuburban

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

Full planning permission for the following to the existing single storey fully serviced semi-detached house with hipped roof, with adjoining domestic garage & single storey extension to the rear and porch to front with a flat roof. Full planning permission is sought to convert the existing attic with new dormer window boxes to the front & rear, with rooflight also to the rear , a proposed ‘a’ pitched roof with side gable window on first floor landing. A redesign of the front porch. Addition of a split level single storey side extension with a flat roof, demolishing part of existing adjoining domestic garage to achieve the new design. Minor changes internally to allow the new design. Maintain connection to public sewerage and surface water and all ancillary 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.

Recent sales nearby

within 500 m

Residential Property Price Register sales within 500 metres of this site
Address	Date	Price	Distance
25 Ardagh Grove, Blackrock, Dublin	Nov 2025	€765,000	80 m
14 Ardagh Avenue, Blackrock, Dublin	Sept 2025	€875,000	145 m
24 Ardagh Avenue, Blackrock, Dublin	Jun 2025	€790,000	166 m
29 Belmont Lawn, Stillorgan Rd, Blackrock	Dec 2025	€1,132,000	179 m
2 Ardagh Grove, Blackrock, Dublin	Oct 2025	€795,000	184 m
39 Ardagh Park, Blackrock, Dublin	Mar 2025	€765,000	219 m
40 Ardagh Avenue, Blackrock, Dublin	Dec 2025	€820,000	221 m
50 Ardagh Park, Blackrock, Dublin	Jun 2025	€855,000	222 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 December 2025
Decision due25 February 2026
Decision issued24 February 2026

In the area

Applications near this site

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Related developments

Similar applications

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