GrantedNew dwellingDecided 20 March 2026

rear of 4 & 4a, Proby Square, Blackrock, Co. Dublin

Extension of duration for a two-storey, three-bedroom mews house with parking and site works.

D21A/0136/E1 · Dun Laoghaire Rathdown County Council · Lodged 29 January 2026

Reference: D21A/0136/E1
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Extension Of Duration Of Permission
Received: 29 January 2026

Summary

AI-generated

This application seeks an extension of duration for a previously permitted development. The project involves lowering the ground level to construct a two-storey, three-bedroom mews dwelling, along with new boundary walls, a parking area, a turning circle, and drainage works.

New dwellingmewsinfillextension of duration

Residential unit: 1
Storeys: 2

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 development. The proposed development will consist of: a. Partial excavation and lowering of ground level with associated site works. B. The construction of 1 no. 3 bedroom two storey mews dwelling. C. Construction of new boundary walls to the rear of the proposed dwelling and adjacent dwelling at no. 5 proby square mews. D. Construction of a parking area and a turning circle accessed from laneway. E. Installation of new foul and surface drainage runs under adjoining laneway, and all 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.

Recent sales nearby

within 500 m

Residential Property Price Register sales within 500 metres of this site
Address	Date	Price	Distance
46 Avondale Lawn, Blackrock, Dublin	Sept 2025	€1,470,000	40 m
45 Avondale Lawn, Blackrock, Dublin	Jan 2026	€1,158,000	46 m
8 Proby Square, Blackrock, Co Dublin	Sept 2025	€1,520,000	48 m
11 Avondale Park, Blackrock, Co Dublin	Apr 2026	€999,000	67 m
5 Proby Gardens, Blackrock, Dublin	Nov 2025	€1,010,000	98 m
34 Avondale Lawn, Blackrock, Dublin	Apr 2026	€960,000	145 m
16a Proby Sq, Blackrock, Dublin	Aug 2025	€815,000	145 m
2 Avondale Lawn, Carysfort Ave, Blackrock	Apr 2026	€930,000	150 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 received29 January 2026
Decision due25 March 2026
Decision issued20 March 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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