Core Planning Reasoning
The proposed development is in accordance with the 'RES' zoning objective and specific policies for family flats (H15) and residential extensions (H14) in the South Dublin County Development Plan 2022-2028. It is considered that the proposal would not seriously injure the visual or residential amenities of the area.
Decision Maker's Conclusion
- The principle of the family flat is acceptable as it meets the criteria of being subordinate to the main dwelling (less than 50% floor area) and serves a genuine need for immediate family.
- Visual impacts are mitigated by a design that matches the existing house in scale, form, and materials, ensuring no negative impact on the streetscape.
- Residential amenity concerns regarding overlooking are resolved through revised window designs and the presence of mature boundary screening, while overshadowing is negligible due to the northern orientation of the extension.
Cited Policies (CDP)
Policy H15 (Family Flats)H15 Objective 1Policy H14 (Residential Extensions)H14 Objective 1Section 12.6.8 (Family Flats standards)Zoning Objective RESSouth Dublin County Council House Extension Design Guide, 2010
Decision Document Summary
The application seeks permission for a two-storey, 97.44 sq.m granny flat extension to the side of a semi-detached house at 48 Dargle Wood, Knocklyon. The Planning Authority granted permission, which was subsequently appealed by a neighbor (No. 47) citing concerns over overlooking from first-floor windows and loss of sunlight. The Inspector noted that the applicant submitted revised drawings reducing window sizes and proposing obscure glazing to address privacy. The report highlights that the ex...SOURCE PDFOpen Original
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