Planning appeal decision
63 Canterbury Avenue, Lancaster, Lancashire, LA1 4AU
Planning appeal 3371876 at 63 Canterbury Avenue, Lancaster, Lancashire, LA1 4AU (Lancaster City Council) was dismissed on 5 November 2025 by Inspector Manson S, by written representations. The main issue, as the Inspector framed it: Whether the proposal would result in an increased risk of flooding.
the erection of a two storey extension
- Authority
- Lancaster City Council
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Manson S
- Postcode
- LA1 4AU
Main issues, as the Inspector framed them
- Whether the proposal would result in an increased risk of flooding
What decided it
The proposal fails to demonstrate that it would not increase the risk of flooding by impeding water flow or reducing flood storage capacity in a functional flood plain, contrary to Policy DM33.
What the Inspector cited
- Development plan policies
- Policy DM33
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
Town Planner Pro holds this letter. The Appeals plan opens it and every other letter we hold, all of them searchable, with the main issues and what decided each case picked out. We do not show letters on the free site because they carry people’s names and addresses.
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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