Planning appeal decision
31 High Street, Chislehurst, BR7 5AE
Planning appeal 3271332 at 31 High Street, Chislehurst, BR7 5AE (London Borough of Bromley) was dismissed on 30 November 2021 by Inspector Ollerenshaw M, by written representations. The main issue, as the Inspector framed it: The effect of the development proposed on the character and appearance of the host property and the surrounding area, including whether or not it would preserve or enhance the character or appearance of the Chislehurst Conservation Area.
Replacement of roof antenna housing with a mansard second floor extension to provide Class B1(a) Office accommodation
- Authority
- London Borough of Bromley
- Appeal type
- minor · Planning Appeal
- Procedure
- Written Representations
- Development
- employment-industrial · Minor offices/R&D/light industry
- Inspector
- Ollerenshaw M
- Postcode
- BR7 5AE
Main issues, as the Inspector framed them
- The effect of the development proposed on the character and appearance of the host property and the surrounding area, including whether or not it would preserve or enhance the character or appearance of the Chislehurst Conservation Area
What decided it
The mansard roof extension would be a prominent and incongruous addition that would cause unacceptable harm to the character and appearance of the conservation area, which could not be outweighed by the limited economic and social benefits of the proposed office accommodation.
The limited economic and social benefits of the proposed office accommodation did not outweigh the less-than-substantial harm to the significance of the conservation area.
What the Inspector cited
- Development plan policies
- Policy 37Policy 41Policy 6
- National Planning Policy Framework
- Paragraph 199Paragraph 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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