Planning appeal decision
6 Australia Avenue, Maidenhead, SL6 7DJ
Planning appeal 3359729 at 6 Australia Avenue, Maidenhead, SL6 7DJ (Royal Borough of Windsor and Maidenhead) was dismissed on 11 March 2025 by Inspector Marshall E, by written representations. The main issue, as the Inspector framed it: The impact of the proposal upon the character and appearance of the host dwelling and adjoining semi-detached property.
first floor side extension with side/rear dormer and alterations to fenestration
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Marshall E
- Postcode
- SL6 7DJ
Main issues, as the Inspector framed them
- The impact of the proposal upon the character and appearance of the host dwelling and adjoining semi-detached property
What decided it
The proposed side/rear dormer would dominate the roofscape through its bulk, scale, and top-heavy design, resulting in detrimental impact to the character and appearance of the host dwelling and adjoining property, contrary to Policy QP3 and the Borough Wide Design Guide.
What the Inspector cited
- Development plan policies
- Policy QP3
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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- Dismissed9 October 2026600900559 to 61 and Land to the Rear of 59 to 61 St Leonard's Road, Windsor, SL4 3BX
- Notice upheld24 September 20263353235Sunnyside Stanwell Road, Horton, Slough, SL3 9PE
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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