Planning Register
South Dublin County Council · SD25B/0577W · Retention

The Beeches, Firhouse Road, Knocklyon, Dublin 16, D16N4T8

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

Council received 1 Oct 2025We first saw it 11 Sept 2026, 18:51 (346 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/0577W is a planning application for retention at The Beeches, Firhouse Road, Knocklyon, Dublin 16, D16N4T8, received by South Dublin County Council on 1 Oct 2025 and first seen by Planning Register on 11 Sept 2026. The application describes: Amendments to the previously approved application (SD18B/0452) consisting of a reduction of the first floor rear extension. The council granted permission on 21 Nov 2025 (retention). The five-week observation window closed on 5 Nov 2025. The site is zoned G3 — high amenity under the South Dublin County Council development plan. Within 500 m there are 46 other decided applications in the last five years and 5 appeals.

Appeal window closes 19 Dec 2025 closed 267 days ago
4 weeks from the council's decision (21 Nov 2025) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer)
Council registerSite report

Proposal

Amendments to the previously approved application (SD18B/0452) consisting of a reduction of the first floor rear extension.

Status
Final Grant
Decision
Grant permission for retention on 21 Nov 2025
Final grant
6 Jan 2026
Permission expires
5 Jan 2031
Site (from polygon)
946 m²
Location precision
site (coords_polygon)

Timeline

  • 1 Oct 2025
    New application
    Observation window closed 5 Nov 2025
  • 21 Nov 2025
    Decision
    Appeal window closed 19 Dec 2025

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Appeal

Not appealed.

Commencement

No commencement notice matched to this reference.

    Zoning at the site

    G3 — High amenity

    HA-DV: To protect and enhance the outstanding character and amenity of the Dodder Valley

    Protected high-amenity landscape. Development is resisted to preserve the character of the area.

    Designations within 250 m

    OPW flood extent nearby — flag only (licence); floodinfo.ie.

    • NIAH-recorded building · 2
      Bellavista Mill; Knocklyon Cross
    • 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

    Provenance

    Register row from the national planning applications feed (NPAD), fetched 11 Sept 2026, 18:51 (store id 110465). 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/69029.

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