Core Refusal Reason
The development represents haphazard back-land development that is overbearing in scale and height, contravenes a previous planning condition (FW18B/0121) regarding roof design, and fails to comply with development plan standards for ancillary garden rooms by functioning as an independent residential unit.
Decision Maker's Conclusion
- The structure to be retained, comprising a two-bedroom unit with an accessible attic, represents a congested form of development in a back-land location that introduces an inappropriate third building line and causes overbearing impacts on neighboring properties.
- The height and scale of the outbuilding (4.64m) materially contravene Condition 1 of permission FW18B/0121, which had specifically required a flat-roof design to protect residential amenity.
- The proposed 1.9 sqm link extension is considered a nominal connection that does not prevent the building from functioning as an unauthorized independent living unit, which is inconsistent with the Fingal County Development Plan 2023-2029.
Cited Policies (CDP)
Zoning Objective 'RS'Chapter 13 (Land use Zoning)Section 14.10 (Additional Residential Accommodation in Built-up Areas)Section 14.10.2 (Residential Extensions)Section 14.10.14 (Garden Rooms)Section 14.10.4 (Garden Rooms)
Decision Document Summary
The application at 31 Dunsoghly Avenue, Finglas, involved the retention of a 59 sqm (plus 23 sqm attic) outbuilding as a residential extension and the construction of a small link to the main house. The site context is a suburban semi-detached house on a corner site. While a previous permission (FW18B/0121) allowed for a flat-roofed ancillary building, the applicant instead constructed a larger, pitched-roof structure used for residential purposes. Third-party observers raised significant concer...SOURCE PDFOpen Original
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