Planning Register
South Dublin County Council · SD22A/0423 · Permission

Leixlip Water Treatment Plant, Cooldrinagh, Leixlip, Co. Dublin

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

Council received 7 Nov 2022We first saw it 11 Sept 2026, 18:51 (1405 days after receipt — sources refresh weekly)
Applications only for this county. Appeals, zoning, RZLT and consultations: Dún Laoghaire-Rathdown and Fingal only for now.

SD22A/0423 is a planning application for permission at Leixlip Water Treatment Plant, Cooldrinagh, Leixlip, Co. Dublin, received by South Dublin County Council on 7 Nov 2022 and first seen by Planning Register on 11 Sept 2026. The application describes: Opening up of the existing facade to facilitate the installation of 2 new windows into the first floor office area of the existing water treatment building. The council granted permission on 11 Jan 2023. The five-week observation window closed on 12 Dec 2022. The site is zoned G3 — high amenity under the South Dublin County Council development plan. Within 500 m there are 12 other decided applications in the last five years and 1 appeal.

Appeal window closes 8 Feb 2023 closed 1312 days ago
4 weeks from the council's decision (11 Jan 2023) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer)
Council registerSite report

Proposal

Opening up of the existing facade to facilitate the installation of 2 new windows into the first floor office area of the existing water treatment building.

Status
Registered Application
Decision
Grant permission on 11 Jan 2023
Final grant
20 Feb 2023
Site (from polygon)
2.34 ha
Location precision
site (coords_polygon)

Timeline

  • 7 Nov 2022
    New application
    Observation window closed 12 Dec 2022
  • 11 Jan 2023
    Decision
    Appeal window closed 8 Feb 2023

Around this site this application first, then everything within 500 m

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Appeal

Not appealed.

Commencement

No commencement notice matched to this reference.

    Zoning at the site

    G3 — High amenity

    HA-LV: To protect and enhance the outstanding character and amenity of the Liffey 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 · 6
      Leixlip Hydro Power Station; walled garden; Cooldrinagh House
    • Radon risk area · 4
      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
    • Recorded monument · 8
      Barrow - ring-barrow; Prehistoric site - lithic scatter; Icehouse

    Provenance

    Register row from the national planning applications feed (NPAD), fetched 11 Sept 2026, 18:51 (store id 119979). 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/63421.

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