Core Refusal Reason
The proposal was refused due to excessive scale and bulk, negative impacts on residential amenity, and failure to meet the specific criteria for family flat extensions regarding integration and subsidiarity.
Decision Maker's Conclusion
- The extension's layout, bulk, and scale are excessive relative to the existing house, resulting in inadequate private amenity space and negative impacts on neighboring visual and residential amenity.
- The proposed family flat fails to meet development plan standards as it is not interlinked with the primary dwelling, lacks subsidiarity, and includes independent access that materially divides the site.
- The development lacks valid justification for its use and would set an unwelcome precedent for similar out-of-scale extensions in the locality, contrary to proper planning.
Cited Policies (CDP)
Section 12.3.7.1(ii)Section 12.3.7.3
Decision Document Summary
This application sought permission for modifications to an existing utility room and a rear extension/family flat at 27 Ailesbury Grove, Dundrum. Dún Laoghaire-Rathdown County Council refused the proposal because the extension's scale and bulk were deemed excessive, compromising the site's private amenity space and the neighbors' visual comfort. Additionally, the proposed family flat failed to demonstrate sufficient integration with the main house, effectively creating a separate unit through in...SOURCE PDFOpen Original
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