4254/23

Permission for the construction of a ground floor single-storey flat roof rear extension and a first-floor single-storey pitched roof infill extension of the rear-return over the existing ground floor, adjoining the boundary with no. 23 and all associated site works.

Split decision

Core Reason for the Refused Part

The Inspector recommended granting permission for the entire development, overturning the Planning Authority's split decision. The recommendation is based on the finding that the first-floor infill extension's mono-pitch roof design and its use as a bedroom (rather than a high-traffic living area) sufficiently mitigate overshadowing, overbearing, and overlooking impacts on the neighboring property at No. 23 Curzon Street.

Decision Maker's Conclusion

  • The proposed development provides a reasonable improvement in residential accommodation on a constrained urban site while respecting the character of the Residential Conservation Area.
  • The first-floor extension is materially different in design and use from a previously refused 2010 proposal, specifically utilizing a mono-pitch roof to minimize physical and visual impact on the shared boundary.
  • Subject to conditions, the development does not result in significant adverse impacts regarding overshadowing, overlooking, or overbearing, and is consistent with the proper planning and sustainable development of the area.

Cited Policies (CDP)

Dublin City Development Plan 2022-2028Chapter 15 (Development Standards)Appendix 18, Section 1 (Residential Extensions)Appendix 18, Section 1.2 (Extensions to Rear)Appendix 18, Section 1.4 (Privacy & Amenity)Appendix 18, Section 2.2 (Rear Extensions)Zoning Objective (Map E): Residential Neighbourhoods (Conservation Areas)

Decision Document Summary

The application concerns a single-storey terraced house at 22 Curzon Street, Dublin 8, located within a Residential Conservation Area. The applicant sought permission for a ground-floor flat-roof extension and a first-floor pitched-roof infill extension over an existing return. Dublin City Council issued a split decision, granting the ground floor works but refusing the first-floor element due to potential overshadowing and its failure to meet a 1.5m setback condition imposed in a 2010 planning ...
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