Core Refusal Reason
The Inspector recommends a grant of permission, concluding that the development's limited scale and position below the roof ridge will not seriously injure residential or visual amenities, provided specific conditions on window size and materials are met to ensure assimilation.
Decision Maker's Conclusion
- The dormer is limited in scale, remains below the house's roof ridge, and is not visible from the streetscape, thereby complying with general development plan policy.
- While visible from the Royal Canal, potential visual dominance can be mitigated by conditioning a reduction in window size and the use of matching roof tiles to cover the dormer walls.
- The proposal does not significantly increase overlooking of adjacent properties and, with the specified modifications, represents proper planning and sustainable development.
Cited Policies (CDP)
Fingal Development Plan 2017-2023Zoning Objective RSObjective DMS41 (Dormer extensions)Objective CH43 (Royal Canal heritage)Page 425 (Criteria for roof alterations/expansions)
Decision Document Summary
The applicant seeks permission for a 5.7sqm dormer window to the rear of a four-bedroom semi-detached house in Castleknock to provide headroom for a home office. Fingal County Council initially refused permission, arguing the design was visually dominant and contrary to Objective DMS41. The Inspector notes the site context is sensitive as it backs onto the Royal Canal (a proposed Natural Heritage Area). However, the Inspector argues that because the dormer is not visible from the public road and...SOURCE PDFOpen Original
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