Core Refusal Reason
The proposal constitutes overdevelopment that negatively impacts neighboring residential amenity and provides substandard, overshadowed private open space.
Decision Maker's Conclusion
- The extension's scale and siting along the common boundary would relate poorly to the adjoining property and disrupt the existing residential form of the area.
- The development represents overdevelopment of the site, resulting in a substandard quantum and quality of private amenity space characterized by narrow strips and an enclosed courtyard.
- The remaining outdoor spaces would suffer from poor sunlight penetration and excessive overshadowing, failing to meet the 'RES' zoning objective to protect and improve residential amenity.
Cited Policies (CDP)
South Dublin County Development Plan 2022 - 2028 policy on domestic extensions and residential consolidationRES land-use zoning objectiveSection 12.6.8 of the South Dublin County Development Plan 2022 - 2028Built Form Principle 1 of the South Dublin House Extension Design Guide (2025)Built Form Principle 4 of the South Dublin House Extension Design Guide (2025)
Decision Document Summary
The applicant sought permission for a ground floor rear extension with a flat roof at 15 Woodstown Rise, Knocklyon. The planning authority refused the application on the grounds that the scale and positioning of the structure along the northern boundary would negatively impact the neighboring dwelling and the character of the area. Additionally, the proposal was found to be an overdevelopment of the site, leaving behind inadequate and poor-quality private open space that would be severely limite...SOURCE PDFOpen Original
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