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Planning appeal decision

Dismissed6 February 20263375080

21 Northumberland Crescent, Feltham, TW14 9SY

Planning appeal 3375080 at 21 Northumberland Crescent, Feltham, TW14 9SY (London Borough of Hounslow) was dismissed on 6 February 2026 by Inspector Savage K, by written representations. The main issue, as the Inspector framed it: The suitability of the existing dwelling for conversion.

the erection of a first floor rear extension and the conversion of the existing two storey side extension into a separate one-bedroom dwelling with parking

Authority
London Borough of Hounslow
Appeal type
minor · Planning Appeal
Procedure
Written Representations
Development
residential · Minor Dwellings
Inspector
Savage K
Postcode
TW14 9SY

Main issues, as the Inspector framed them

  • The suitability of the existing dwelling for conversion
  • Whether the proposal would provide a suitable standard of accommodation for prospective occupants
  • The effect of the proposal on the character and appearance of the area
  • The effect of the proposed rear extension on the living conditions of neighbouring occupants
  • The adequacy of proposed parking and cycle parking and the effects of these on highway and pedestrian safety
  • The adequacy of proposed waste and recycling storage
  • Whether the proposal would be acceptable in terms of addressing biodiversity net gain requirements

What decided it

The proposal would fail to provide an adequate standard of accommodation for prospective occupants, combined with unacceptable risks to highway and pedestrian safety and harm to character and appearance, resulting in conflict with the development plan taken as a whole.

What the Inspector cited

Development plan policies
Policy SC6Policy SC5Policy D6Policy CC1Policy CC2Policy T5Policy T4Policy EC2Policy EQ7Policy G6Policy G7Policy BG7

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. Dismissed23 October 20266011171
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  3. Dismissed20 July 20266006466
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  4. Dismissed10 July 20266006681
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  5. Dismissed9 July 20266002796
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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.

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.