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South Dublin County Council · SD25B/0122W

16 Castlefield Green, Knocklyon, Dublin 16, D16C9N1

Approved in Jun 2025. Building started in 2025.

  1. 10 Mar 2025Received
  2. 29 Apr 2025Approved
  3. 10 Jun 2025Final approval
  4. 5 Sept 2025Building started
Status
Building startedi
Decision
Approved · 29 Apr 2025
Council
South Dublin County Council
Type
Permission
Site
300 m²

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What’s proposed

For the construction of double storey side extension to existing semi-detached house, extension of existing single storey rear extension, conversion of existing attic to 2 No. Bedrooms with individual dormer windows and all associated works. Works on ground floor of double storey side extension consist of new utility area, and roller shutter door to house a vehicle securely in ground floor space and first floor consists of 2 new bedrooms with landing area. Demolition works include existing front side boundary wall and existing rear extension wall

Planning details

Reference
SD25B/0122W
Local authority
South Dublin County Council
Status
Commenced · register status “Final Grant”
Received
10 Mar 2025
Observations close
14 Apr 2025 (closed 556 days ago)
Decision due
5 May 2025 · decided 29 Apr 2025
Decision
Grant permission on 29 Apr 2025
Site area
300 m² from the mapped boundary, not the council's figure

Nearby 42 · 500 m · 5 years

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Building started

  • 5 Sept 2025 · Builder told the council work was starting (opted out of the finish sign-off) CN0132908SD

Zoning

G1 — Open space with recreation

Open space with active recreational amenities — pitches, courts, play areas.

R2 — Existing residential

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.

Protections nearby 250 m

  • Recorded monument · 4
    Ringfort - unclassified; Fulacht fia

Where this comes from

National planning feed (NPAD), fetched 11 Sept 2026, 18:51.

Source: National Planning Application Database · fetched 11 Sept 2026, 18:51
SourceLicenceFetchedLink
National Planning Application DatabaseCC BY 4.011 Sept 2026, 18:51open
Summary

SD25B/0122W is a planning application to South Dublin County Council for for the construction of double storey side extension to existing semi-detached house, received on 10 Mar 2025; permission was granted on 29 Apr 2025.