Planning Register
South Dublin County Council · SD25B/0563W · Retention

The Beeches, Firhouse Road, Knocklyon, Dublin 16, D16 N4T8

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

Council received 19 Sept 2025We first saw it 11 Sept 2026, 18:51 (358 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/0563W is a planning application for retention at The Beeches, Firhouse Road, Knocklyon, Dublin 16, D16 N4T8, received by South Dublin County Council on 19 Sept 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 declared the application invalid on 25 Sept 2025. The five-week observation window closed on 24 Oct 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.

Observations close 24 Oct 2025 closed 323 days ago
5 weeks from receipt (19 Sept 2025) · s.34 Planning and Development Act 2000 · art. 29 Regulations 2001 · €20 to the council
Council registerSite report

Proposal

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

Status
Invalid Application
Decision
Invalidate application on 25 Sept 2025
Site (from polygon)
948 m²
Location precision
site (coords_polygon)

Timeline

  • 19 Sept 2025
    New application
    Observation window closed 24 Oct 2025
  • 25 Sept 2025
    Decision
    Appeal window closed 23 Oct 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 110471). 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/68988.

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