Demolition of the existing two storey extension over garage to the side
11 Trees Avenue, Mount Merrion, Blackrock, Co. Dublin, A94 W2A8
up to 2 storeys · Lodged
Planning application D26B/0522/WEB to Dun Laoghaire Rathdown County Council: Demolition of the existing two storey extension over garage to the side and single storey glazed porch to front, at 11 Trees Avenue, Mount Merrion, Blackrock.
Timeline
- Application lodged
Key facts
Proposed development
Permission sought for: 1) Demolition of the existing two storey extension over garage to the side and single storey glazed porch to front; 2) Construction of a two storey extension to the side tieing into the existing roof profile; 3) Additional modifications to front elevation consisting of two bay windows at ground floor level either side of a central open porch feature; 4) Construction of a flat-roofed, single storey extension to the rear; 5) Construction of a new terrace at ground floor level to the rear over garden level storage below; 6) Incorporation of new rooflight over roof apex and solar panels to the front; 7) The development will include all associated landscaping, drainage and site development works.
Planning status
The application has been lodged and validated. The council has eight weeks to decide, unless it asks for further information.
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Nearby applications
Other applications on the Dun Laoghaire Rathdown register close to this address.
- REF1442520, Eastwood, Trees Avenue, Mount Merrion, Blackrock, DUBLIN, A94N5W9In Assessment
Proposed removal of two (2) double flue chimney stacks to eaves level on the nor
- D25B/0008/WEB9, Trees Avenue, Mount Merrion, Stillorgan, Co Dublin, A94A3Y0On Site
(a) demolition of existing single storey extens
- D24B/0534/WEBNo. 9, Trees Avenue, Mount Merrion, Stillorgan, Co. Dublin, A94A3Y0Closed
(a) demolition of existing single storey extens
Related
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 12 Oct 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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