Core Refusal Reason
The proposal constitutes overdevelopment that negatively impacts residential amenity and risks unauthorized subdivision due to its design and scale.
Decision Maker's Conclusion
- The extension represents overdevelopment that significantly reduces the quality and quantity of private open space and daylight for the dwelling.
- The inclusion of an additional front door conflicts with the requirement for extensions to remain ancillary, posing a risk of unauthorized subdivision.
- The development would set a negative precedent and is contrary to the 'RES-N' zoning objective and the SDCC House Extension Design Guide.
Cited Policies (CDP)
RES-N zoning objectiveSouth Dublin County Development Plan 2022 – 2028SDCC House Extension Design Guide (2025)
Decision Document Summary
This application sought planning permission for a single-storey side extension at No. 30 Hawthorne Avenue, Kilcarbery, Dublin 22. The local authority refused the proposal primarily because it was deemed overdevelopment that would compromise the private amenity space and daylight of the property. Furthermore, the inclusion of a separate front door raised concerns regarding the potential for unauthorized subdivision into multiple units, ultimately conflicting with the South Dublin County Developme...SOURCE PDFOpen Original
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