GrantedExtensionDecided 3 September 2021

12 Sans Souci Park, Booterstown, Co. Dublin, A94 W9X9

Demolition of a garage and construction of two-storey side and rear extensions, plus a new loft conversion with a rear dormer.

D21B/0365 · Dun Laoghaire Rathdown County Council · Lodged 16 July 2021

Reference: D21B/0365
Authority: Dun Laoghaire Rathdown County Council
Register status: Decided
Type: Permission
Received: 16 July 2021

Summary

AI-generated

The project involves extensions and alterations to an existing 133 sq.m dwelling. It includes the demolition of an existing garage, the construction of a new two-storey side extension and a two-storey/single-storey rear extension, and the addition of a new loft conversion with a rear dormer window.

Extensionextensiondormerdemolition

Floor area: 149 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

Full permission for extensions and alterations to an existing 133 sq. M dwelling. The development consists of: (a) the demolition of existing garage (b) a new two storey extension to side and two storey / single storey extension to rear of existing dwelling circa 105 sq. M. (c) the alteration and provision of new loft accommodation in a proposed new roof with a proposed new dormer window to rear and all associated rooflights - circa 44 sq. M. (d) amendments to plans and elevation with new two s...

Built & sold

What happened next

Beyond the decision: whether this development was built, and what property here has sold for.

Built — construction complete

A commencement notice records works starting on 27 June 2022.

Notified floor area: 282 m²

Recent sales nearby

within 500 m

Residential Property Price Register sales within 500 metres of this site
Address	Date	Price	Distance
9b Rosemount Terrace, Booterstown, Co Dublin	Apr 2025	€795,000	81 m
23 Cross Avenue, Blackrock, Co Dublin	Dec 2025	€2,375,000	92 m
37 Rosemount Court, Booterstown, Co Dublin	Mar 2025	€590,000	112 m
33 Rosemount Court, Booterstown Ave, Blackrock	Mar 2025	€490,000	117 m
38 Hampton Crescent, St Helens Wood, Booterstown Dublin	Apr 2026	€1,100,000	124 m
48 Rosemount Court, Booterstown, Blackrock	Oct 2025	€555,000	144 m
13 Hampton Crescent, St Helens Wood, Booterstown	Jul 2026	€912,000	157 m
12 Rosemount Court, Rosemount Terrace, Booterstown	Feb 2026	€547,500	158 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 received16 July 2021
Decision issued3 September 2021

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