The construction of a first-floor extension over the existing single-storey flat-roof…
29, Avondale Lawn, Blackrock, Dublin, A94X8Y8
Proposed development
The construction of a first-floor extension over the existing single-storey flat-roof side/front section; alterations to the existing hipped roof to form a Dutch-hipped roof profile and a new projecting A-gable to the front elevation, incorporating burnt-larch cladding; conversion of the attic to ancillary domestic accommodation comprising a studio and office; construction of two dormer windows to the rear roof slope; installation of two rooflights to the front roof slope; alteration/reconstruction of the chimney stack; construction of a new internal staircase from first-floor level to the attic; internal alterations at first-floor level to accommodate the revised layout; associated new and altered window openings and external finishes; continued connection to the existing public foul and surface water drainage services; and all associated site and ancillary works, all to the existing two-storey semi-detached dwelling with existing single-storey flat-roof side/front section.
What happens next
The application has been lodged and validated. The council has eight weeks to decide, unless it asks for further information.
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About this page: the facts above come from the statutory public planning register kept by Dun Laoghaire Rathdown County Council and are refreshed weekly (last updated 10 Aug 2026). Applicant names and contact details are not shown. Status labels are PlanningLeads' plain-language reading of the register status and the "Use" label is classified by AI from the public description (see how we use AI); neither is legal advice and the council's file is the record. How we handle this data: privacy notice.
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