56, Mount Drummond Square, Harolds Cross, Dublin 6, D06 C9K8
Data updated 12 Sept 2026 · register lag up to 7 days · sources & freshness
WEB5231/25 is a planning application for permission at 56, Mount Drummond Square, Harolds Cross, Dublin 6, D06 C9K8, received by Dublin City Council on 25 Sept 2025 and first seen by Planning Register on 11 Sept 2026. The application describes: Planning Permission for an Attic Conversion with a new Flat Roof Dormer Window to the rear of the existing two storey terraced dwelling and to include ancillary works. The council granted permission on 19 Nov 2025. The five-week observation window closed on 30 Oct 2025. A commencement notice (CN0137308DC) was lodged on 20 Jan 2026, so works have started on site. The site is zoned null under the Dublin City Council development plan. Within 500 m there are 119 other decided applications in the last five years and 23 appeals.
Proposal
Planning Permission for an Attic Conversion with a new Flat Roof Dormer Window to the rear of the existing two storey terraced dwelling and to include ancillary works.
- Status
- Decision Notice Issued
- Decision
- Grant permission on 19 Nov 2025
- Final grant
- 2 Jan 2026
- Site (from polygon)
- 135 m²
- Location precision
- site (coords_polygon)
Timeline
- 25 Sept 2025New applicationObservation window closed 30 Oct 2025
- 19 Nov 2025DecisionAppeal window closed 17 Dec 2025

Full planning report for 53.32616, -6.27503
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1 Where this is — preview
1 Deadlines still open
Appeal
Not appealed.
Commencement
- Short commencement notice CN0137308DC
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.
Z15: Community and Social Infrastructure: To protect and provide for community uses and social infrastructure.
Reserved for the schools, creches, community and health facilities a neighbourhood needs.
Designations within 250 m
OPW flood extent nearby — flag only (licence); floodinfo.ie.
- NIAH-recorded building · 14
- 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 66606). 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 |