Planning Register
Dún Laoghaire-Rathdown County Council · D26A/0159/WEB · Permission

46, South Avenue, Mount Merrion, Co. Dublin, A94W9D8

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

Council received 3 Mar 2026We first saw it 11 Sept 2026, 15:18 (193 days after receipt — sources refresh weekly)

D26A/0159/WEB is a planning application for permission at 46, South Avenue, Mount Merrion, Co. Dublin, A94W9D8, received by Dún Laoghaire-Rathdown County Council on 3 Mar 2026 and first seen by Planning Register on 11 Sept 2026. The application describes: Full planning permission for the demolition of the existing single-story side g… The council granted permission on 23 Apr 2026. The five-week observation window closed on 7 Apr 2026. A commencement notice (CN0146325DR) was lodged on 24 Aug 2026, so works have started on site. The site is zoned R2 — existing residential under the Dún Laoghaire-Rathdown County Council development plan. Within 500 m there are 147 other decided applications in the last five years and 18 appeals.

Appeal window closes 21 May 2026 closed 114 days ago
4 weeks from the council's decision (23 Apr 2026) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer)
Council registerSite report

Proposal

Full planning permission for the demolition of the existing single-story side g

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 23 Apr 2026
Final grant
27 May 2026
Site (from polygon)
540 m²
Location precision
site (coords_polygon)

Timeline

  • 3 Mar 2026
    New application
    Observation window closed 7 Apr 2026
  • 23 Apr 2026
    Decision
    Appeal window closed 21 May 2026

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Appeal

Not appealed.

Commencement

  • Opt out commencement notice CN0146325DR
    24 Aug 202646 South Avenue, Blackrock, Dublin, A94 W9D8matched by ref_normalised

Zoning at the site

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.

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 · 1
    Thornhill House

Provenance

Register row from the national planning applications feed (NPAD), fetched 11 Sept 2026, 15:18 (store id 20602). 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=D26A/0159/WEB.

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