Core Refusal Reason
Refusal is primarily based on the overdevelopment of a restricted corner site, where the sunroom extension results in an inadequate and poorly configured amount of usable private open space (falling significantly below the required 50-70sqm standard) and sets an undesirable visual precedent due to its proximity to the road.
Decision Maker's Conclusion
- The sunroom extension constitutes overdevelopment of a restricted triangular site, leaving a shortfall in private open space that injures the residential amenity of the house and the surrounding area.
- The visual prominence of the extension, characterized by its proximity to the road boundary and its flat-roofed design, would set a troubling precedent for similar inappropriate developments in the estate.
- A split decision is recommended: refusing retention for the sunroom extension while granting permission for the small, unobtrusive storage shed at the rear of the site subject to conditions.
Cited Policies (CDP)
South Dublin County Council Development Plan 2022-2028Zoning Objective RESSDCC House Extension Design Guide (2025)Sustainable Residential Development and Compact Settlements Guidelines (2024)
Decision Document Summary
The application at 23A Oldbridge Park, Lucan, seeks retention permission for a ground floor sunroom extension and a storage shed on a site previously hived off from No. 23. The Inspector identifies the site as a restricted, corner plot with a triangular configuration. While the 19sqm sunroom exists, it significantly encroaches into the private amenity space, leaving only approximately 22sqm of usable garden area, which fails both the South Dublin County Development Plan standard (70sqm) and the ...SOURCE PDFOpen Original
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