RefusedExtensionDecided 24 February 2026

Coolkeel, 33 Knocknacree Park, Dalkey, Dublin, A96V250

Retrofit, partial demolition, and extension of a detached house to include a private spa and basement works.

D25A/1004/WEB · Dun Laoghaire Rathdown County Council · Lodged 23 December 2025

Reference: D25A/1004/WEB
Authority: Dun Laoghaire Rathdown County Council
Register status: Appealed
Type: Permission
Received: 23 December 2025

Summary

AI-generated

The project involves upgrading and extending a 1960s detached dwelling, increasing its size from 236 sqm to 388 sqm. The works include partial demolition, a contemporary flat-roofed extension, and a lower ground floor level featuring a private spa with a steam room, sauna, and hot tub.

Extensionretrofitspaluxury

Floor area: 388 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

(i) the retrofit, upgrade and extension of the existing 1960’s, two-storey over sub-basement detached three-bedroom dwelling (c. 236sq. M), including refurbishment and internal reconfiguration; (ii) partial demolition of sections of the existing dwelling, including removal of portions of external and internal walls, floors, and roof structures as necessary to facilitate proposed works; (iii) extension of the existing dwelling resulting in a two-storey over sub-basement, three-bedroom contemporary flat roofed dwelling (c. 388sq. M). The lower ground floor level of the proposed development will comprise a private spa, including a steam room, sauna, sunken hot tub, wc and plant rooms. The ground floor level of the proposed dwelling will comprise the kitchen/dining, utility, washroom, wc and living room, with the bedrooms at first floor level; (iv) alterations to all elevations including revised fenestration, insulation, new wall and roof finishes (v) installation of rooflights; (vi) the proposed pedestrian and vehicular access to the subject site will be via the north, off knocknacree park. A new pedestrian gate is proposed on the northern site boundary; (vii) refurbishment of the existing rustic timber cabin located to the rear of the site; and (viii) the proposed development also includes: all ancillary site works, inclusive of tree removal and replacement landscaping, boundary treatments, lighting, suds drainage, and all other engineering/drainage works necessary to facilitate the development.

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
14 Knock Na Cree Park, Dalkey, Dublin	Dec 2025	€1,500,000	112 m
The Octagon, Ardeevin Road, Dalkey	Oct 2025	€1,440,000	122 m
Arranmore, Cunningham Road, Dalkey	Jul 2025	€2,750,000	159 m
6 Dalkey Rock, Ardbrugh Rd, Dalkey	Dec 2025	€1,260,000	170 m
9 Craiglands, Ardeevin Road, Dalkey	Aug 2025	€540,000	195 m
9 Craiglands, Ardeevin Road, Dalkey	Aug 2025	€550,000	195 m
Inishowen, Knocknacree Rd, Dalkey	Oct 2025	€1,900,000	199 m
Ravello, Cunningham Rd, Dalkey	Jan 2025	€2,595,000	214 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
Appeal submitted23 March 2026

In the area

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Related developments

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