Core Refusal Reason
The proposed two-storey rear extension constitutes overdevelopment that would result in a visually dominant and overbearing impact on adjacent residential properties.
Decision Maker's Conclusion
- The extension's massing, height, and depth would create a visually dominant structure that imposes an unacceptable overbearing impact on neighboring sites.
- The proposal represents overdevelopment within a constrained terrace context, leading to adverse impacts on both residential and visual amenity.
- Granting permission would establish an undesirable precedent for similar works that conflict with the Dún Laoghaire-Rathdown County Development Plan 2022-2028.
Cited Policies (CDP)
Section 12.3.7.1(ii)
Decision Document Summary
The application sought permission for a two-storey rear extension to an existing dwelling at 23 Thornberry Close, Stepaside. The planning authority refused the proposal primarily because its scale and proximity to the rear boundary were deemed excessive for the constrained terrace setting. The decision-maker concluded that the development would negatively affect the amenity of adjoining properties through its overbearing presence and would set a poor precedent for the area, thereby failing to co...SOURCE PDFOpen Original
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