Planning appeal decision
Great Drove Farm, Bostal Road, Steyning, West Sussex, BN44 3PD
Planning appeal 3354257 at Great Drove Farm, Bostal Road, Steyning, West Sussex, BN44 3PD (South Downs) was allowed on 28 May 2025 by Inspector Jolly J, by written representations. The main issue, as the Inspector framed it: The effect of the proposal on the supply of small to medium sized dwellings in the South Downs National Park.
for the demolition of existing conservatory and the erection of single- storey extensions to dwelling
- Authority
- South Downs
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Jolly J
- Postcode
- BN44 3PD
Main issues, as the Inspector framed them
- The effect of the proposal on the supply of small to medium sized dwellings in the South Downs National Park
What decided it
The extended dwelling, despite exceeding the 30% floorspace threshold, would still qualify as a medium-sized family property and therefore meet Policy SD31's exceptional circumstances provision.
What the Inspector cited
- Development plan policies
- Policy SD31
- National Planning Policy Framework
- Paragraph 56
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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What an account adds to this decision


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- Dismissed11 May 2026600074417 High Street, Lewes, East Sussex, BN7 2LN
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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