Planning Register
Dún Laoghaire-Rathdown County Council · D25B/0739/WEB · Permission

56, Trees Road Lower, Mount Merrion, Dublin, A94X9X5

Data updated 12 Sept 2026 · register lag up to 7 days · sources & freshness

Council received 23 Dec 2025We first saw it 11 Sept 2026, 15:18 (263 days after receipt — sources refresh weekly)

D25B/0739/WEB is a planning application for permission at 56, Trees Road Lower, Mount Merrion, Dublin, A94X9X5, received by Dún Laoghaire-Rathdown County Council on 23 Dec 2025 and first seen by Planning Register on 11 Sept 2026. The application describes: a) removal of existing chimney to side and existing extensions to side and rear… The council granted permission on 24 Feb 2026. The five-week observation window closed on 5 Feb 2026. A commencement notice (CN0147477DR) was lodged on 17 Sept 2026, so works have started on site. The site is zoned G1 — open space with recreation under the Dún Laoghaire-Rathdown County Council development plan. Within 500 m there are 133 other decided applications in the last five years and 16 appeals.

Appeal window closes 24 Mar 2026 closed 172 days ago
4 weeks from the council's decision (24 Feb 2026) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer)

Proposal

a) removal of existing chimney to side and existing extensions to side and rear

The description is truncated at source (80 characters in the national feed). The full text is on the council register.

Status
Final Grant
Decision
Grant permission on 24 Feb 2026
Final grant
1 Apr 2026
Site (from polygon)
711 m²
Location precision
site (coords_polygon)

Timeline

  • 23 Dec 2025
    New application
    Observation window closed 5 Feb 2026
  • 24 Feb 2026
    Decision
    Appeal window closed 24 Mar 2026

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Appeal

Not appealed.

Commencement

  • Opt out commencement notice CN0147477DR
    17 Sept 202656 Trees Road Lower, Blackrock, Dublin, A94 X9X5matched by ref_exact

Zoning at the site

G1 — Open space with recreation

Objective F: F To preserve and provide for open space with ancillary active recreational amenities.

Open space with active recreational amenities — pitches, courts, play areas.

R2 — Existing residential

Objective A: A To provide residential development and improve residential amenity while protecting the existing residential amenities

An established residential area. The objective is to protect existing residential amenity as well as to provide housing — which is the objective a neighbour's objection to an overbearing extension is usually argued under.

G1 — Open space with recreation

Objective F: F To preserve and provide for open space with ancillary active recreational amenities.

Open space with active recreational amenities — pitches, courts, play areas.

R2.6 — Existing residential

Objective A: A To provide residential development and improve residential amenity while protecting the existing residential amenities

An established residential area. The objective is to protect existing residential amenity as well as to provide housing — which is the objective a neighbour's objection to an overbearing extension is usually argued under.

Designations within 250 m

No OPW flood extent nearby.

  • Radon risk area · 2
    About 1 in 10 homes in this area is likely to have high radon levels; About 1 in 20 homes in this area is likely to have high radon levels
  • Record of Protected Structures · 2
    Mount Merrion House Stables; Thornhill House

Provenance

Register row from the national planning applications feed (NPAD), fetched 11 Sept 2026, 15:18 (store id 26053). Deadlines were computed by the store from the received / decided dates under the Planning and Development Act 2000 and are recorded as events, not recomputed here. Council register: https://planning.agileapplications.ie/dunlaoghaire/application-details/?ref=D25B/0739/WEB.

Source: npad · fetched 11 Sept 2026, 15:18
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npadCC-BY-4.011 Sept 2026, 15:18open