®Planning appeal decision
121 Broxholm Road, London, SE27 0BJ
Planning appeal 3354709 at 121 Broxholm Road, London, SE27 0BJ (London Borough of Lambeth) was dismissed on 15 July 2025 by Inspector Cryan M, by written representations. The main issue, as the Inspector framed it: Whether sufficient information has been provided to demonstrate that the proposed basement development would not have unacceptable impacts, including in respect of the ground water environment and land stability (including the structural integrity of neighbouring properties).
the conversion of existing two flats into three flats including a basement extension at the front and rear with front and rear light wells, ground floor single -storey rear extension and associated works; insertion of rooflights to outrigger; provision of refuse and cycle store
- Authority
- London Borough of Lambeth
- Appeal type
- minor · Planning Appeal
- Procedure
- Written Representations
- Development
- residential · Minor Dwellings
- Inspector
- Cryan M
- Postcode
- SE27 0BJ
Main issues, as the Inspector framed them
- Whether sufficient information has been provided to demonstrate that the proposed basement development would not have unacceptable impacts, including in respect of the ground water environment and land stability (including the structural integrity of neighbouring properties)
- Whether the development would provide acceptable living conditions for future occupiers, with regard to outlook, daylight, amenity space, and privacy and overlooking
- The effect of the proposed development on demand for on-street parking
- Whether the development would adequately promote and support the use of sustainable means of travel
What decided it
The absence of a Basement Impact Assessment to demonstrate the proposed basement development would not cause unacceptable harm to neighbouring structures, groundwater and land stability, combined with inadequate living conditions for future occupiers and failure to secure sustainable travel measures through a planning obligation, meant the proposal conflicted fundamentally with the development plan with no material considerations to outweigh this.
What the Inspector cited
- Development plan policies
- Policy Q27Policy H5Policy Q2Policy D6Policy T6Policy T1Policy T7Policy T3Policy D4
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.