120 Mount Prospect Avenue, Clontarf, Dublin 3
Data updated 12 Sept 2026 · register lag up to 7 days · sources & freshness
WEB2784/25 is a planning application for permission at 120 Mount Prospect Avenue, Clontarf, Dublin 3, received by Dublin City Council on 30 Jul 2025 and first seen by Planning Register on 11 Sept 2026. The application describes: The development will comprise of: (i) demolition of the existing ground floor flat-roofed extension to the rear of the dwelling; (ii) conversion of the existing garage to habitable accommodation; (iii) construction of a part-single, part-two-storey flat-roofed extension to the rear and side of the existing dwelling with extended pitched roof; (iv) extension at first floor level to the side, front and rear of the dwelling; (v) A bay window to the front elevation; (vi) construction of a dormer structure at attic level to the rear of the dwelling; (vii) widening of the existing vehicular entrance onto Mount Prospect Avenue to 3.2 metres; (viii) installation of 7 roof lights; and all ancillary works, associated landscaping, boundary treatments and ground works necessary to facilitate the development. The council granted permission on 23 Sept 2025. The five-week observation window closed on 3 Sept 2025. The site is zoned null under the Dublin City Council development plan. Within 500 m there are 138 other decided applications in the last five years and 16 appeals.
Proposal
The development will comprise of: (i) demolition of the existing ground floor flat-roofed extension to the rear of the dwelling; (ii) conversion of the existing garage to habitable accommodation; (iii) construction of a part-single, part-two-storey flat-roofed extension to the rear and side of the existing dwelling with extended pitched roof; (iv) extension at first floor level to the side, front and rear of the dwelling; (v) A bay window to the front elevation; (vi) construction of a dormer structure at attic level to the rear of the dwelling; (vii) widening of the existing vehicular entrance onto Mount Prospect Avenue to 3.2 metres; (viii) installation of 7 roof lights; and all ancillary works, associated landscaping, boundary treatments and ground works necessary to facilitate the development.
- Status
- Decision Notice Issued
- Decision
- Grant permission on 23 Sept 2025
- Final grant
- 28 Oct 2025
- Site (from polygon)
- 546 m²
- Location precision
- site (coords_polygon)
Timeline
- 30 Jul 2025New applicationObservation window closed 3 Sept 2025
- 23 Sept 2025DecisionAppeal window closed 21 Oct 2025
Full planning report for 53.36716, -6.18329
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1 Where this is — preview
1 Deadlines still open
Appeal
Not appealed.
Commencement
No commencement notice matched to this reference.
Zoning at the site
Zone Z1 - DEV PLAN 2022-2028
Z1: Sustainable Residential Neighbourhoods: To protect, provide and improve residential amenities.
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.
- NIAH-recorded building · 2
- Radon risk area · 1
- Recorded monument · 1
Provenance
Register row from the national planning applications feed (NPAD), fetched 11 Sept 2026, 18:51 (store id 82755). 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.
Source: npad · fetched 11 Sept 2026, 18:51
| Source | Licence | Fetched | Link |
|---|---|---|---|
| npad | CC-BY-4.0 | 11 Sept 2026, 18:51 | open |