Core Refusal Reason
The proposed extension, due to its excessive length of 14.5 metres along the shared boundary, would result in undue overbearing and overshadowing impacts on the adjoining property to the north, leading to overdevelopment and a significant loss of private amenity space.
Decision Maker's Conclusion
- The extension's excessive length and proximity to the shared boundary would cause significant overbearing and overshadowing impacts on the private rear amenity space of the residential property to the north (No. 20).
- The proposal represents overdevelopment of the application site as it significantly reduces the private rear amenity space required to serve a dwelling of this size.
- The development would be contrary to the 'RE' zoning objective which seeks to protect and improve residential amenities, and would set an undesirable precedent for similar unsustainable development in the area.
Cited Policies (CDP)
Zoning: RE Existing ResidentialPolicy HD9Appendix 1: Development Design Standards
Decision Document Summary
The proposal involved the construction of a 46.6sq.m single-storey rear extension and the demolition of an outhouse at 21 Tinahask Lower, Arklow, a mid-terrace two-storey dwelling. Wicklow County Council refused permission because the extension's 14.5-metre length along the northern boundary was deemed to have a detrimental overbearing and overshadowing effect on the neighboring property. Additionally, the planning authority concluded that the scale of the extension resulted in overdevelopment b...SOURCE PDFOpen Original
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