Core Planning Reasoning
The proposed increase in ridge height would result in a substandard floor-to-ceiling height (approximately 1.9 meters) for the intended bedroom, failing to meet the minimum 2.4-meter standard for habitable rooms while also setting an undesirable precedent that would negatively impact the character of the mid-terrace streetscape.
Decision Maker's Conclusion
- The requested 200mm increase in ridge height is insufficient to provide a habitable room under Building Regulations, resulting in a substandard internal environment of only 1.9m in height.
- Raising the ridge height would be incongruous with the established terrace character and would set a negative planning precedent for the area where no such modifications currently exist.
- The proposal fails to adhere to the 'subordinate approach' outlined in the Development Plan, which requires that extensions be no higher than the existing roofline.
Cited Policies (CDP)
Zoning Z1Section 16.10.12Appendix 17Section 17.8 of Appendix 17
Decision Document Summary
This case involves a first-party appeal against Condition 2(a) of Dublin City Council's decision to grant permission for a domestic extension at 43 Swan's Nest Road. The applicants sought to raise the roof ridge height by 200mm to facilitate an attic conversion into a bedroom for a growing family. The site consists of a mid-terrace red-brick dwelling in a suburban estate. The Inspector argued that despite the applicants' personal needs, the resulting internal head height would remain significant...SOURCE PDFOpen Original
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View the appeal at An Bord Pleanála