Planning Register
South Dublin County Council · SD26B/0148W · Permission

1, Washington Park, Rathfarnham, Dublin 14, D14 X510

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

Council received 1 Apr 2026We first saw it 11 Sept 2026, 18:51 (164 days after receipt — sources refresh weekly)
Applications only for this county. Appeals, zoning, RZLT and consultations: Dún Laoghaire-Rathdown and Fingal only for now.

SD26B/0148W is a planning application for permission at 1, Washington Park, Rathfarnham, Dublin 14, D14 X510, received by South Dublin County Council on 1 Apr 2026 and first seen by Planning Register on 11 Sept 2026. The application describes: Single storey extension to the rear of existing property and all associated site works. The council granted permission on 15 May 2026. The five-week observation window closed on 6 May 2026. The site is zoned R2 — existing residential under the South Dublin County Council development plan. Within 500 m there are 119 other decided applications in the last five years and 4 appeals.

Appeal window closes 12 Jun 2026 closed 92 days ago
4 weeks from the council's decision (15 May 2026) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer)
Council registerSite report

Proposal

Single storey extension to the rear of existing property and all associated site works.

Status
Final Grant
Decision
Grant permission on 15 May 2026
Final grant
25 Jun 2026
Permission expires
24 Jun 2031
Floor area
16 m²
Site (from polygon)
587 m²
Location precision
site (coords_polygon)

Timeline

  • 1 Apr 2026
    New application
    Observation window closed 6 May 2026
  • 15 May 2026
    Decision
    Appeal window closed 12 Jun 2026

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Appeal

Not appealed.

Commencement

No commencement notice matched to this reference.

    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

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

    • NIAH-recorded building · 2
      Orchardstown House; Washington House
    • 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
    • Recorded monument · 5
      Burial ground; Ecclesiastical enclosure; Enclosure

    Provenance

    Register row from the national planning applications feed (NPAD), fetched 11 Sept 2026, 18:51 (store id 110459). 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/70082.

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