Planning Register
South Dublin County Council · SD26B/0109W · Permission

21, Tynan Hall Avenue, Dublin 24, Dublin, D24C1Y2

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

Council received 16 Mar 2026We first saw it 11 Sept 2026, 18:51 (180 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/0109W is a planning application for permission at 21, Tynan Hall Avenue, Dublin 24, Dublin, D24C1Y2, received by South Dublin County Council on 16 Mar 2026 and first seen by Planning Register on 11 Sept 2026. The application describes: The demolition of the existing single storey rear extension. Permission for single storey extension to the rear of the existing dwelling with tiled roof, roof lights, internal alterations. Attic conversion with a dormer roof and window, removal of existing hip roof, new gable wall and roof, Window to side gable elevation, front porch extension and all ancillary works necessary to facilitate the development. The council granted permission on 11 May 2026. The five-week observation window closed on 20 Apr 2026. The site is zoned R2 — existing residential under the South Dublin County Council development plan. Within 500 m there are 35 other decided applications in the last five years and 3 appeals.

Appeal window closes 8 Jun 2026 closed 96 days ago
4 weeks from the council's decision (11 May 2026) · s.37 Planning and Development Act 2000 · €220 to An Coimisiún Pleanála (€110 observer)
Council registerSite report

Proposal

The demolition of the existing single storey rear extension. Permission for single storey extension to the rear of the existing dwelling with tiled roof, roof lights, internal alterations. Attic conversion with a dormer roof and window, removal of existing hip roof, new gable wall and roof, Window to side gable elevation, front porch extension and all ancillary works necessary to facilitate the development.

Status
Final Grant
Decision
Grant permission on 11 May 2026
Final grant
25 Jun 2026
Permission expires
24 Jun 2031
Floor area
40 m²
Site (from polygon)
203 m²
Location precision
site (coords_polygon)

Timeline

  • 16 Mar 2026
    New application
    Observation window closed 20 Apr 2026
  • 11 May 2026
    Decision
    Appeal window closed 8 Jun 2026

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

    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 · 2
      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

    Provenance

    Register row from the national planning applications feed (NPAD), fetched 11 Sept 2026, 18:51 (store id 95270). 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/69995.

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