Planning Register
South Dublin County Council · SD21B/0649

3, Knocklyon Avenue, Dublin 16

  1. 10 Mar 2022Received
  2. 6 Apr 2022Grant permission
  3. 17 May 2022Final grant
  4. 20 Aug 2026Commenced
Applications only for this county. Appeals, zoning, RZLT and consultations: Dún Laoghaire-Rathdown and Fingal only for now.
Status
Commenced
Decision
Grant permission · 6 Apr 2022
Council
South Dublin County Council
Type
Permission
Site
330 m²

What’s proposed

Alterations to existing house to include a ground floor extension to rear & side; first floor extension to side, new roof to include attic conversion with dormer windows to front & rear and associated site works

SD21B/0649 is a planning application to South Dublin County Council for alterations to existing house to include a ground floor extension to rear & side; first, received on 10 Mar 2022; permission was granted on 6 Apr 2022.

Planning details

Reference
SD21B/0649
Local authority
South Dublin County Council
Status
Commenced · register status “Decision Following A.I.
Received
10 Mar 2022
Observations close
14 Apr 2022 (closed 1614 days ago)
Decision due
6 Apr 2022 · decided 6 Apr 2022
Decision
Grant permission on 6 Apr 2022
Proposed development
Alterations to existing house to include a ground floor extension to rear & side; first floor extension to side, new roof to include attic conversion with dormer windows to front & rear and associated site works
As published by the register.
Site area
330 m² from the mapped boundary, not the council's figure
Applicant
Not published — the national feed carries no applicant name council register

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

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Full planning report for 53.28675, -6.32260

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Appeal

Not appealed.

Commencement

  • Opt out commencement notice CN0146352SD
    20 Aug 20263 Knocklyon Avenue, Dublin 16, Dublin, D16 Y9P0matched by ref_exact

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 20 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 98118). 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/61732.

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