RefusedDecided 24 February 2026Dun Laoghaire Rathdown County Council

D25A/1004/WEB: (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.

Coolkeel, 33 Knocknacree Park, Dalkey, Dublin, A96V250
DecisionRefuse permission
Decided24 February 2026
Application typePermission
Source documents10

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