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Planning appeal decision

Dismissed3 June 20266003029

223 Twickenham Road, Isleworth, TW7 6DH

Planning appeal 6003029 at 223 Twickenham Road, Isleworth, TW7 6DH (London Borough of Hounslow) was dismissed on 3 June 2026 by Inspector Alice James, by written representations. The main issue, as the Inspector framed it: The effect of the proposal on the living conditions of the existing occupiers of 223 Twickenham Road, with regard to the provision of on-site communal outdoor amenity space.

erection of a light-weight setback rooftop extension, to facilitate the creation of a self-contained two-bed dwelling (Class C3) with dedicated external amenity (balcony) to the front elevation

Authority
London Borough of Hounslow
Appeal type
Planning
Procedure
Written
Development
residential
Inspector
Alice James
Postcode
TW7 6DH

Main issues, as the Inspector framed them

  • The effect of the proposal on the living conditions of the existing occupiers of 223 Twickenham Road, with regard to the provision of on-site communal outdoor amenity space

What decided it

The total loss of good quality communal outdoor amenity space would have a harmful effect on the living conditions of existing occupiers of flats 1-8 which have no private outdoor space, and no suitable alternative provision exists.

What the Inspector cited

Development plan policies
Policy D6 of the London PlanPolicy SC5 of the London Borough of Hounslow Local Plan 2015-2030
National Planning Policy Framework
Paragraph 125

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 applied

The decision letter

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More decisions in London Borough of Hounslow

The authority’s record since 2016 · every decision in 2026

  1. Allowed26 October 20266015572
    3 Chatsworth Crescent, Hounslow, TW3 2PE
  2. Dismissed23 October 20266011172
    45 Colonial Road, Feltham, TW14 8AA
  3. Dismissed23 October 20266011171
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  4. Allowed21 October 20266013999
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  5. Dismissed19 October 20266015127
    251 Jersey Road, Isleworth, TW7 4RF

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.

In the app this decision sits on the map beside every appeal around it, with its letter to read and the main issues, policies and judgments cited picked out.