Planning Register
South Dublin County Council · SD25B/0286 · Permission

15, Liffey Terrace, Liffey Valley Park, Lucan, Co. Dublin K78 E278

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

Council received 21 May 2025We first saw it 11 Sept 2026, 18:51 (479 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/0286 is a planning application for permission at 15, Liffey Terrace, Liffey Valley Park, Lucan, Co. Dublin K78 E278, received by South Dublin County Council on 21 May 2025 and first seen by Planning Register on 11 Sept 2026. The application describes: Development will consist of a proposed new Dutch hip gable wall to the side of the existing house. A new flat roof dormer to the rear of the existing house roof converting the attic space into new bedroom. A new window at attic level in new side gable wall and all ancillary works. The council declared the application invalid on 26 Jun 2025. The five-week observation window closed on 25 Jun 2025. The site is zoned R2 — existing residential under the South Dublin County Council development plan. Within 500 m there are 79 other decided applications in the last five years and 1 appeal.

Appeal window closes 24 Jul 2025 closed 415 days ago
4 weeks from the council's decision (26 Jun 2025) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer)
Council registerSite report

Proposal

Development will consist of a proposed new Dutch hip gable wall to the side of the existing house. A new flat roof dormer to the rear of the existing house roof converting the attic space into new bedroom. A new window at attic level in new side gable wall and all ancillary works

Status
Invalid - Site Notice
Decision
Invalid - site notice on 26 Jun 2025
Floor area
28 m²
Site (from polygon)
207 m²
Location precision
site (coords_polygon)

Timeline

  • 21 May 2025
    New application
    Observation window closed 25 Jun 2025
  • 26 Jun 2025
    Decision
    Appeal window closed 24 Jul 2025

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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

    No OPW flood extent nearby.

    • Radon risk area · 3
      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; About 1 in 5 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 94447). 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/68281.

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