GrantedExtensionDecided 27 October 2005

31, Thornhill Road, Mount Merrion, Co. Dublin

Demolition of a side garage to build a two storey side extension and single storey rear extension.

D05B/0667 · Dun Laoghaire Rathdown County Council · Lodged 6 September 2005

Reference: D05B/0667
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Permission
Received: 6 September 2005

Summary

AI-generated

The project involves demolishing a side garage and utility area to build a two storey side extension, a single storey rear extension, a front porch with ramp access, and upgrading an existing conservatory.

Extensionextensiondemolitionconservatory

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

For demolition of garage and utility area to side and build on its location a 2 storey hipped end extension with extended ground floor at the front across the extended house up to and including existing front room extension and a covered passage to the rear along the adjoining garage party wall, a new front porch steps and ramp access a single storey extension to the rear and the existing conservatory's upgrade with new tiled roof and rebuilt side glazed wall in masonary and the removal of th...

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
7 Clonmore Rd, Mount Merrion, Dublin	Sept 2025	€1,400,000	75 m
33 Clonmore Rd, Mount Merrion, Dublin	Apr 2026	€1,425,000	111 m
32 South Ave, Mount Merrion, Dublin	Jan 2026	€1,725,000	188 m
28 South Ave, Mount Merrion, Dublin	Sept 2025	€1,400,000	191 m
24 South Ave, Mount Merrion, Dublin	Dec 2025	€1,580,000	197 m
71 Trees Road, Mount Merrion, Co Dublin	Aug 2025	€1,480,000	204 m
13 Redesdale Rd, Mount Merrion, Dublin	Sept 2025	€850,000	204 m
98 Lr Kilmacud Rd, Stillorgan, Dublin	Jul 2025	€1,187,000	208 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 received6 September 2005
Decision issued27 October 2005

In the area

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