Planning appeal decision
16 St. Leonards Avenue, Windsor, SL4 1HX
Planning appeal 3358248 at 16 St. Leonards Avenue, Windsor, SL4 1HX (Royal Borough of Windsor and Maidenhead) was allowed on 8 April 2025 by Inspector Metcalfe P, by written representations. The main issue, as the Inspector framed it: Its effect on the character and appearance of the area.
dormer roof extension
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Metcalfe P
- Postcode
- SL4 1HX
Main issues, as the Inspector framed them
- Its effect on the character and appearance of the area
- Whether it is in accordance with policies which relate to its impact on protected species
What decided it
The proposal would preserve the character and appearance of the conservation area by virtue of its reasonable proportions and separation, consistency with previously permitted similar dormers at nearby properties, and absence of harm to protected species.
What the Inspector cited
- Development plan policies
- QP3HE1DES.01HER.02NR2Principle 10.5
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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