Planning appeal decision
78 Floriston Avenue, Uxbridge, UB10 9EB
Planning appeal 3321857 at 78 Floriston Avenue, Uxbridge, UB10 9EB (London Borough of Hillingdon) was allowed in part (a split decision) on 16 April 2024 by Inspector Hawkins S, by written representations. The main issue, as the Inspector framed it: Whether suitable living conditions are provided for existing and future occupiers of the additional self-contained residential unit, having regard to internal floorspace and private outdoor amenity space.
without planning permission, the material change of use of a single-family dwelling house into two separate self- contained residential units (‘the breach’)
- Authority
- London Borough of Hillingdon
- Appeal type
- enforcement · Enforcement Notice
- Procedure
- Written Representations
- Development
- residential · Change of use
- Inspector
- Hawkins S
- Postcode
- UB10 9EB
Main issues, as the Inspector framed them
- Whether suitable living conditions are provided for existing and future occupiers of the additional self-contained residential unit, having regard to internal floorspace and private outdoor amenity space
- The effect on the character and appearance of the surrounding area
- The effect on highway safety, having regard to the provision made for off-street vehicle parking
What decided it
The additional unit does not provide suitable living conditions for existing and future occupiers due to restrictive internal living space falling well short of Development Plan standards and the complete absence of private outdoor amenity space, which carries significant weight and outweighs the modest benefits of increased housing supply.
What the Inspector cited
- Development plan policies
- DMP Policy DMHB 16DMP Policy DMHB 18DMP Policy DMH 4DMP Policy DMT 2DMP Policy DMT 6LP Policy D6
How the Inspector dealt with each one is set out in the app, in order: the development plan, national policy, housing land supply, other considerations and the planning balance, beside the letter.
See how each was appliedThe decision letter
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With an account
What an account adds to this decision


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- Dismissed12 June 2026600269596 Oakdene Road, Hillingdon, UB10 0SQ
The main issues, what decided it, the planning balance and the policies and judgments listed as cited are read from the published letter by Town Planner Pro and are our summary, not the Inspector’s words; the letter itself is the record. Contains public sector information licensed under the Open Government Licence v3.0. Research, not advice.
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