Planning appeal decision
21 Lancaster Avenue, London, SE27 9EL
Planning appeal 3344074 at 21 Lancaster Avenue, London, SE27 9EL (London Borough of Lambeth) was allowed on 1 October 2024 by Inspector Allan J, by written representations. The main issue, as the Inspector framed it: The effect of the proposal upon the character and appearance of the host property and the wider Lancaster Avenue Conservation Area.
the erection of a lower ground extension to the rear and a two-storey extension to the side, reconfiguration of the front boundary wall, along with internal reconfiguration and refurbishment throughout
- Authority
- London Borough of Lambeth
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Allan J
- Postcode
- SE27 9EL
Main issues, as the Inspector framed them
- The effect of the proposal upon the character and appearance of the host property and the wider Lancaster Avenue Conservation Area
What decided it
The rear elevation of the property is largely out of sight beyond the property's curtilage due to dense mature vegetation, and therefore changes to it would not harm the character or appearance of the conservation area.
What the Inspector cited
- Development plan policies
- Policy Q5Policy Q11Policy Q22Policy Q23Policy Q27
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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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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