Planning appeal decision
Basement Flat, 57 Cornwall Crescent, London, W11 1PJ
Planning appeal 3269182 at Basement Flat, 57 Cornwall Crescent, London, W11 1PJ (Royal Borough of Kensington and Chelsea) was dismissed on 5 October 2021 by Inspector Wyborn D, by written representations. The main issue, as the Inspector framed it: The effect of the proposal, when compared with the approved scheme, on the character and appearance of the host building and adjoining area, and whether the scheme preserves or enhances the character or appearance of the Ladbroke Conservation Area.
a single storey rear extension to existing basement flat with lantern roof and lightwell
- Appeal type
- householder · Planning Appeal
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Wyborn D
- Postcode
- W11 1PJ
Main issues, as the Inspector framed them
- The effect of the proposal, when compared with the approved scheme, on the character and appearance of the host building and adjoining area, and whether the scheme preserves or enhances the character or appearance of the Ladbroke Conservation Area
What decided it
The oversized lantern, which is out of scale and character with the extension and causes a conspicuous and harmful glow of artificial light visible from adjoining properties, results in harm to the conservation area that outweighs the limited public benefits of the proposal.
The less than substantial harm to the character and appearance of the conservation area, to which great weight must be given, outweighs the limited public benefits of improved living accommodation which are largely private benefits.
What the Inspector cited
- Development plan policies
- Policy CL1Policy CL2Policy CL3Policy CL9
- National Planning Policy Framework
- Paragraph 202
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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