RefusedExtensionDecided 14 September 2023

50, Cherrygarth, Mount Merrion, Blackrock, Co. Dublin, A94H3A8

Demolition of a shed and construction of a single-storey extension for use as an ancillary family unit.

D23A/0402 · Dun Laoghaire Rathdown County Council · Lodged 23 August 2023

Reference: D23A/0402
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Permission
Received: 23 August 2023

Summary

AI-generated

The project involves the demolition of an existing single-storey detached shed to accommodate a new single-storey extension to the side of the existing two-storey semi-detached house. The extension is intended for use as an independent family unit ancillary to the main residence.

Extensionfamily flatdemolitionextension

Storey: 1

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 the demolition of existing single storey detached shed to accommodate the construction of a single storey extension to existing two storey semi-detached house for use as an independent family unit ancillary to the main residence for a family member, permission for new ground floor side window to replace existing door 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
50 Cherry Garth, Mount Merrion, Blackrock	May 2025	€1,275,000	2 m
49 Thornhill Oaks, Cherry Garth, Mount Merrionprice excludes VAT	Jan 2025	€1,145,374	91 m
49 Thornhill Oaks, Cherry Garth, Mount Merrion	Dec 2025	€1,430,135	94 m
50 Thornhill Oaks, Cherry Garth, Mount Merrion	Sept 2025	€1,500,000	96 m
14 South Avenue, Mount Merrion, Co Dublin	Sept 2025	€920,000	96 m
15 Cherry Garth, Mount Merrion, Blackrock	Apr 2025	€1,110,000	108 m
61 The Stables, Thornhill Oaks, Mount Merrionprice excludes VAT	Aug 2025	€889,868	132 m
24 South Ave, Mount Merrion, Dublin	Dec 2025	€1,580,000	135 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 August 2023
Decision due19 September 2023
Decision issued14 September 2023

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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