RefusedDecided 22 April 2021Dun Laoghaire Rathdown County Council

D21A/0161: Permission for development. The proposed development will consist of: Conservation works to Thornhill House, to upgrade the house as a single family residence 494 sqm; the provision of 5No. own door two storey 2 bed dwellings to the rear of Thornhill House through the renovation, conversion and extension of an existing return and outbuildings located around an existing rear stable yard; and the provision of a terrace of 5 No. one-and-a-half storey mews dwellings located to the south of Thornhill House. The proposed conservation works and interventions to the house are to include - (i) Formation of new ope in partition to proposed kitchen in basement, (ii) Removal of door and alteration to window to rear hall at ground floor level; (iii) Modifications to WC and bathroom t landing level; (iv) Modifications to master ensuite at first floor level' (v) Removal of inappropriate internal doors to basement; and external architectural interventions / enhancements to include - (i) Removal of existing perspex screens to front portico, (ii) Removal of security grilles to windows and the rationalisation of soil pipes to the elevations (iii) Provision of new painted hardwood doors replacing inappropriate modern joinery elements to basement (iv) Improvements to external areas on eastern and western sides at basement level, (v) Removal of fixed maintenance ladders and gates to rear courtyard wall and provision of a private garden with associated railings, gates, soft and hard landscaping to the south and west of Thornhill House. Works to return and outbuildings to include creation of new opes, removal of sections of external wall and interior partitions, roofs to be removed and existing slates to be reused in new extension, removal of external courtyard wall and removal of corrugated roof over covered external space, wrought iron trusses and column supports, provision of new sash windows, refurbishment of existing original sash windows, replacement of non-original windows / doors, demolition of existing boiler room and WC to south-east of external courtyard. the proposed development will consist of the reconfiguration of the permitted ( Dun Laoghaire Rathdown County Council Reg. Ref. D17A/0240; An Bord Pleanála Ref. PL06D.300244) internal road layout, amendments to hard and soft landscaping, boundary treatment works including the provision of opes in the existing eastern stone wall and replacement of low wall and railings and all associated works above and below ground.

Site of c. 1.39 ha, Thornhill House, Cherry Garth, Mount Merrion, Blackrock, Co.Dublin A Protected Structure (RPS No. 936)
DecisionRefuse permission
Decided22 April 2021
Application typePermission
Source documents19

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