Planning Register
South Dublin County Council · SD22B/0178 · Permission

Blackthorn Hill, Coolmine, Saggart, Co. Dublin

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

Council received 10 Mar 2023We first saw it 11 Sept 2026, 18:51 (1282 days after receipt — sources refresh weekly)
Applications only for this county. Appeals, zoning, RZLT and consultations: Dún Laoghaire-Rathdown and Fingal only for now.

SD22B/0178 is a planning application for permission at Blackthorn Hill, Coolmine, Saggart, Co. Dublin, received by South Dublin County Council on 10 Mar 2023 and first seen by Planning Register on 11 Sept 2026. The application describes: Alterations to the existing roof structure of existing habitable dwelling; construction of a single storey extension to the rear and side of the existing dwelling including changes to all elevations; construction of a single storey porch to the front of existing dwelling including changes to all elevations; construction of a raised patio area to the rear elevation of the existing dwelling; decommissioning of existing septic tank and installation of a wastewater treatment plant and percolation area and all ancillary site works. The council granted permission on 3 Apr 2023. The five-week observation window closed on 14 Apr 2023. The site is zoned G3 — high amenity under the South Dublin County Council development plan. Within 500 m there is 1 other decided application in the last five years.

Appeal window closes 2 May 2023 closed 1230 days ago
4 weeks from the council's decision (3 Apr 2023) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer)
Council registerSite report

Proposal

Alterations to the existing roof structure of existing habitable dwelling; construction of a single storey extension to the rear and side of the existing dwelling including changes to all elevations; construction of a single storey porch to the front of existing dwelling including changes to all elevations; construction of a raised patio area to the rear elevation of the existing dwelling; decommissioning of existing septic tank and installation of a wastewater treatment plant and percolation area and all ancillary site works.

Status
Final Grant
Decision
Grant permission on 3 Apr 2023
Final grant
15 May 2023
Floor area
67 m²
Site (from polygon)
7,561 m²
Location precision
site (coords_polygon)

Timeline

  • 22 Jun 2022
    Further information requested
  • 22 Sept 2022
    Further information received
  • 10 Mar 2023
    New application
    Observation window closed 14 Apr 2023
  • 3 Apr 2023
    Decision
    Appeal window closed 2 May 2023

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Appeal

Not appealed.

Commencement

No commencement notice matched to this reference.

    Zoning at the site

    G3 — High amenity

    HA-DM: To protect and enhance the outstanding natural character of the Dublin Mountains Area

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

    P1 — Rural

    RU: To protect and improve rural amenity and to provide for the development of agriculture

    Zoned to protect agriculture, rural enterprise and biodiversity. New houses are restricted to demonstrated local need.

    Designations within 250 m

    No OPW flood extent nearby.

    • Radon risk area · 4
      About 1 in 10 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; About 1 in 5 homes in this area is likely to have high radon levels
    • Recorded monument · 2
      Mound; R149320

    Provenance

    Register row from the national planning applications feed (NPAD), fetched 11 Sept 2026, 18:51 (store id 118426). 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/62305.

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