Planning appeal decision
The Firs Mill Lane, Horton, Slough, SL3 9PN
Planning appeal 3285155 at The Firs Mill Lane, Horton, Slough, SL3 9PN (Royal Borough of Windsor and Maidenhead) was dismissed on 17 June 2022 by Inspector Davies N, by written representations. The main issue, as the Inspector framed it: Whether the proposal would be inappropriate development in the Green Belt having regard to the National Planning Policy Framework and any relevant development plan policies and the effect of the proposal on the openness of the Green Belt.
2 storey side and single storey rear extension including change of use to 1 x one bed dwelling
- Appeal type
- minor · Planning Appeal
- Procedure
- Written Representations
- Development
- residential · Minor Dwellings
- Inspector
- Davies N
- Postcode
- SL3 9PN
Main issues, as the Inspector framed them
- Whether the proposal would be inappropriate development in the Green Belt having regard to the National Planning Policy Framework and any relevant development plan policies and the effect of the proposal on the openness of the Green Belt
- The effect of the proposal on the character and appearance of the host property and the area
- Parking provision
- Whether harm by reason of inappropriateness would be clearly outweighed by other considerations and if so whether those amount to the very special circumstances required to justify the proposal
What decided it
The proposal constitutes inappropriate development in the Green Belt that would reduce openness, and the moderate benefits identified do not clearly outweigh this substantial harm or the other identified conflicts with the development plan.
What the Inspector cited
- Development plan policies
- Policy SP1Policy QP5Policy QP1Policy QP3
- National Planning Policy Framework
- Paragraph 137Paragraph 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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