Planning appeal decision
11 Gowan Avenue, London, SW6 6RH
Planning appeal 3357962 at 11 Gowan Avenue, London, SW6 6RH (London Borough of Hammersmith and Fulham) was dismissed on 18 June 2025 by Inspector Burch S, by written representations. The main issue, as the Inspector framed it: the effect of the proposed second floor extension on the living conditions of the occupants of No 13 Gowan Avenue, with particular regard to natural light and outlook.
‘Extension at second floor level, over existing first floor rear addition. Mansard roof extension to the front, including raising the ridge by 200mm with associated front dormers and modifications to existing rear mansard.’
- Appeal type
- minor · Planning Appeal
- Procedure
- Written Representations
- Development
- residential · Other minor developments
- Inspector
- Burch S
- Postcode
- SW6 6RH
Main issues, as the Inspector framed them
- the effect of the proposed second floor extension on the living conditions of the occupants of No 13 Gowan Avenue, with particular regard to natural light and outlook
- the effect of the proposed second floor extension on the character and appearance of the area
What decided it
The proposed second floor rear extension would cause material harm to the living conditions of neighbouring occupants through loss of natural light and outlook, particularly to the ground floor bedroom window at No 13 Gowan Avenue, which conflicts with Policies DC4 and HO11 of the Local Plan and the development plan considered as a whole.
What the Inspector cited
- Development plan policies
- Policy DC4Policy HO11Policy DC1Key Principle HS7Key Principle HS6
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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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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