Planning Register
South Dublin County Council · SD25B/0658W · Permission

20, Coolamber Park, Knocklyon, Dublin 16, D16E4W0

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

Council received 24 Nov 2025We first saw it 11 Sept 2026, 18:51 (292 days after receipt — sources refresh weekly)
Applications only for this county. Appeals, zoning, RZLT and consultations: Dún Laoghaire-Rathdown and Fingal only for now.

SD25B/0658W is a planning application for permission at 20, Coolamber Park, Knocklyon, Dublin 16, D16E4W0, received by South Dublin County Council on 24 Nov 2025 and first seen by Planning Register on 11 Sept 2026. The application describes: Construction of a single-storey flat-roof front extension. The council granted permission on 26 Jan 2026. The five-week observation window closed on 7 Jan 2026. A commencement notice (CN0140086SD) was lodged on 28 Mar 2026, so works have started on site. The site is zoned R2 — existing residential under the South Dublin County Council development plan. Within 500 m there are 77 other decided applications in the last five years and 1 appeal.

Appeal window closes 23 Feb 2026 closed 201 days ago
4 weeks from the council's decision (26 Jan 2026) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer)
Council registerSite report

Proposal

Construction of a single-storey flat-roof front extension.

Status
Final Grant
Decision
Grant permission on 26 Jan 2026
Final grant
12 Mar 2026
Permission expires
11 Mar 2031
Floor area
9 m²
Site (from polygon)
263 m²
Location precision
site (coords_polygon)

Timeline

  • 24 Nov 2025
    New application
    Observation window closed 7 Jan 2026
  • 26 Jan 2026
    Decision
    Appeal window closed 23 Feb 2026

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Appeal

Not appealed.

Commencement

  • Short commencement notice CN0140086SD
    28 Mar 202620 Coolamber Park, Knocklyon, South Dublin, D16 E4W0matched by ref_exact

Zoning at the site

R2 — Existing residential

RES: To protect and/or improve residential amenity

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.

  • NIAH-recorded building · 1
    Charleville House
  • Radon risk area · 1
    About 1 in 20 homes in this area is likely to have high radon levels

Provenance

Register row from the national planning applications feed (NPAD), fetched 11 Sept 2026, 18:51 (store id 97849). 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/southdublin/application-details/69346.

Source: npad · fetched 11 Sept 2026, 18:51
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npadCC-BY-4.011 Sept 2026, 18:51open