First floor extension to front, side & rear of dwelling at 48, Deerpark Road
48, Deerpark Road, Mount Merrion, Co Dublin, A94K3T7
0.04 ha · Declared invalid
Planning application D26B/0316/WEB to Dun Laoghaire Rathdown County Council: First floor extension to front, side & rear of dwelling, Conversion of attic space, at 48, Deerpark Road, Mount Merrion. Declared invalid by the council on 29 May 2026.
Timeline
- Application lodged
- Declared invalid
Key facts
Proposed development
The development will consist of a first floor extension to front, side & rear of dwelling (floor area 31.30m.sq.), Conversion of attic space and replacement of the existing 'hipped roof' structure with a 'gable end' roof structure incorporating the raising of the first floor side wall of the dwelling, together with a dormer & windows on the rear elevation and associated internal modifications (floor area 30.0m.sq.), Bike shed (3.0m.sq.) to be located in front garden and associated site works
Planning status
The application was declared invalid by the council. A corrected application may be lodged again.
Is this your application?
Say it is yours and you will see which building firms and trades have asked to work on it, with the contact details they chose to leave. It is free and takes an email address. Nothing is shared with anyone unless you choose to contact them.
Nearby applications
Other applications on the Dun Laoghaire Rathdown register close to this address.
- D26B/0323/WEB48, Deerpark Road, Mount Merrion, Co Dublin, A94K3T7Granted
A first floor extension to front, side & rear of dwelling (floor area 31.30m.sq.)…
- D25A/0790/WEB29, Wilson Road, Mount Merrion, Dublin, A94K8H2Granted
New dormer window in the roof on the front o
- D25A/0467/WEB47, Deerpark Road, Mount Merrion, Co. DublinOn Site
Internal alterations to existing groun
- D26A/0488/WEB47, Deerpark Road, Mount Merrion, Co. Dublin, A94A9X5Granted
The proposed amendment consists of the omission of the previously permitted detached garden studio from the approved development. All other elements…
- D26B/0337/WEB36, Deerpark Road, Mount Merrion, Blackrock, Co Dublin, A94Y3K5Granted
Ground level single storey rear extension, alterations to existing rear extension + 2No. flat roof rooflights to rear extension area with internal alterations…
- D25B/0046/WEB39 Wilson Road, Mount Merrion, Blackrock, Co. Dublin, A94P3Y9On Site
Attic conversion to habitable status with the pr
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 14 Sept 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.
Remove my application from this page
If this is your application and you would rather it did not appear here, tell us and we will take the page down. No account, no questions asked: we only email you a link to confirm it was you. This is your right to object under GDPR Article 21.