Planning appeal decision
Great Thorndean Barn, Slough Green Lane, Warninglid, Haywards Heath, RH17 5SL
Planning appeal 3266597 at Great Thorndean Barn, Slough Green Lane, Warninglid, Haywards Heath, RH17 5SL (Mid Sussex District Council) was dismissed on 9 August 2021 by Inspector Webb B, by written representations. The main issue, as the Inspector framed it: whether the scheme has preserved or would preserve a Grade II* listed building or its setting or any features of special architectural or historic interest which it possesses.
alterations to plans for conversion of barn to residential. Appeal B: APP/D3830/Y/21/3266597 Great Thorndean Barn, Slough Green Lane, Warninglid RH17 5SL
- Authority
- Mid Sussex District Council
- Appeal type
- other · Listed Building Consent & Conservation Area Consent Appeal
- Procedure
- Written Representations
- Development
- residential · Change of use
- Inspector
- Webb B
- Postcode
- RH17 5SL
Main issues, as the Inspector framed them
- whether the scheme has preserved or would preserve a Grade II* listed building or its setting or any features of special architectural or historic interest which it possesses
- the effect of the scheme on bats
What decided it
The substantial harm to the Grade II* listed building's significance through concealment of its historic timber frame and other alterations, combined with failure to demonstrate proper mitigation of effects on protected bat species, could not be outweighed by the identified public benefits.
The substantial harm to the Grade II* listed building's significance and less than substantial harm to its setting, which attract considerable importance and weight, were not outweighed by the public benefits of the scheme, as these benefits either duplicated those of the approved scheme or were inconsistent with the harm findings.
What the Inspector cited
- Development plan policies
- Policy DP34Policy DP38
- National Planning Policy Framework
- Paragraph 199Paragraph 200Paragraph 201Paragraph 202
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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