Planning application · Dun Laoghaire Rathdown County Council

3 homes at 57, Deerpark Road

57, Deerpark Road, Mount Merrion, Dublin, A94F761

D26A/0493/WEB · Dun Laoghaire RathdownGranted

3 homes · up to 2 storeys · 0.0383 ha · Granted · permission to Aug 2031 (estimate)

Planning application D26A/0493/WEB to Dun Laoghaire Rathdown County Council for 3 homes at 57, Deerpark Road, Mount Merrion. Granted by the council on 24 August 2026. The permission normally runs to August 2031 (an estimate: the grant plus five years).

Timeline

  1. Application lodged
  2. Council granted
  3. Permission normally ends (estimate)

The end date is an estimate: the grant plus five years, the normal life of a permission. An extension or a commencement changes it.

Key facts

Reference
D26A/0493/WEB
Planning authority
Dun Laoghaire Rathdown County Council
Received
30 Jun 2026
Decided
24 Aug 2026
Status
Granted
Application type
Mixed
Use
Mixed_use
Dwellings
3
Site area
0.0383 ha

Proposed development

The development will include the demolition of - the existing end of terrace part single-storey rear storage structure, front outdoor seating glass screen, garage door, roof hip and chimney. The development will consist of reconfiguration and extension of - an existing mixed-use unit currently consisting of a restaurant at ground floor and 3-bedroom own-door apartment at first floor into a retail unit at ground floor and 2 no. triplex own-door 2-bedroom apartments at ground floor, first floor and attic level, with a flat roof rear extension at first floor level and winter garden glass structures, and lowering of first floor. Attic conversion with 2 no. dormers windows to the rear of the existing block to serve the proposed triplex units. The development will consist of construction of - a two-storey infill duplex apartment unit to the rear. Each residential unit will have access to private amenity spaces at ground and first floor level, bicycle storage and bin stores in curtilage of apartments, a communal external store in the courtyard, and all associated site development works

Planning status

Permission was granted on 24 Aug 2026. The four-week appeal period has passed with no appeal recorded, so the permission is final. Works can start once a commencement notice is lodged; the permission normally runs to Aug 2031 (estimate).

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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 2 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.

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