Planning appeal decision
Tythe Barn, Dean Lane, Cookham, Maidenhead, SL6 9BB
Planning appeal 3306528 at Tythe Barn, Dean Lane, Cookham, Maidenhead, SL6 9BB (Royal Borough of Windsor and Maidenhead) was dismissed on 17 March 2023 by Inspector Phillips B, by written representations. The main issue, as the Inspector framed it: Whether the proposed development would be inappropriate development in the Green Belt having regard to the National Planning Policy Framework and relevant development plan policies.
the ‘Demolition of existing garage and replacement with new triple garage and home office space with roof space
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- other · Householder developments
- Inspector
- Phillips B
- Postcode
- SL6 9BB
Main issues, as the Inspector framed them
- Whether the proposed development would be inappropriate development in the Green Belt having regard to the National Planning Policy Framework and relevant development plan policies
- The effect of the proposal on the openness of the Green Belt
- If the development would be inappropriate, whether the harm to the Green Belt by way of inappropriateness and any other harm would be clearly outweighed by other considerations so as to amount to the very special circumstances necessary to justify it
What decided it
The proposal would constitute inappropriate development in the Green Belt by virtue of being materially larger than the building it replaces, and the harm to openness and Green Belt policy was not clearly outweighed by other considerations.
What the Inspector cited
- Development plan policies
- Policy QP5
- National Planning Policy Framework
- Paragraph 149
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.
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