Core Reason for the Refused Part
The proposed rear dormer window extension was refused due to its excessive scale, bulk, and glazing, which would result in a visually obtrusive and overbearing impact while causing significant overlooking of adjacent properties.
Decision Maker's Conclusion
- The rear dormer window's scale and extensive glazing would appear visually obtrusive and overbearing within its context.
- The development would result in significant actual and perceived overlooking, causing injury to the residential amenities and depreciating property values in the vicinity.
- The proposal fails to comply with the specific design standards for attic extensions set out in Section 8.2.3.4 (i) of the Dún Laoghaire Rathdown County Development Plan 2016-2022.
Cited Policies (CDP)
Section 8.2.3.4 (i)
Decision Document Summary
The application proposed several extensions to a dwelling at 36 Leopardstown Avenue, Stillorgan, including a ground floor rear extension, a two-storey front extension, and a rear dormer window. The Planning Authority issued a split decision, granting permission for the ground and front extensions but refusing the rear dormer. The refusal was based on the dormer's disproportionate size and glazing, which were deemed to negatively impact the visual and residential amenities of the area through ove...SOURCE PDFOpen Original
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