31 Mount Prospect Avenue, Clontarf, Dublin 3, D03 EV20
Data updated 12 Sept 2026 · register lag up to 7 days · sources & freshness
WEB2420/25 is a planning application for permission at 31 Mount Prospect Avenue, Clontarf, Dublin 3, D03 EV20, received by Dublin City Council on 18 Jun 2025 and first seen by Planning Register on 11 Sept 2026. The application describes: The development will consist of the demolition of an existing rear single storey extension and garage and the erection of a new part two storey and part single storey flat roofed rear extension. Associated ground floor and first floor internal alterations. Erection of a new single storey flat roofed garage to the side. Erection of a pitched roof dormer to the side and a flat roof dormer to the rear of the house and conversion of the existing attic space. Alterations to existing openings to side elevation. Widening of existing vehicular entrance. All associated landscaping, new boundary treatments, drainage, ancillary site works and services. The council granted permission on 11 Aug 2025. The five-week observation window closed on 23 Jul 2025. The site is zoned null under the Dublin City Council development plan. Within 500 m there are 151 other decided applications in the last five years and 16 appeals.
Proposal
The development will consist of the demolition of an existing rear single storey extension and garage and the erection of a new part two storey and part single storey flat roofed rear extension. Associated ground floor and first floor internal alterations. Erection of a new single storey flat roofed garage to the side. Erection of a pitched roof dormer to the side and a flat roof dormer to the rear of the house and conversion of the existing attic space. Alterations to existing openings to side elevation. Widening of existing vehicular entrance. All associated landscaping, new boundary treatments, drainage, ancillary site works and services.
- Status
- Decision Notice Issued
- Decision
- Grant permission on 11 Aug 2025
- Final grant
- 16 Sept 2025
- Site (from polygon)
- 435 m²
- Location precision
- site (coords_polygon)
Timeline
- 18 Jun 2025New applicationObservation window closed 23 Jul 2025
- 11 Aug 2025DecisionAppeal window closed 8 Sept 2025

Full planning report for 53.36662, -6.19215
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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 · 1
- Radon risk area · 1
Provenance
Register row from the national planning applications feed (NPAD), fetched 11 Sept 2026, 18:51 (store id 82129). 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 |