Planning appeal decision
Land West of Green Acres Farm West End, Blackwater, Truro, Cornwall, TR4 8HH
Planning appeal 3357047 at Land West of Green Acres Farm West End, Blackwater, Truro, Cornwall, TR4 8HH (Cornwall Council) was dismissed on 27 May 2025 by Inspector Roberts G, by written representations. The main issue, as the Inspector framed it: whether the proposed development would be acceptable having regard to local and national planning policies on the location of new housing within the open countryside.
conversion and extension of redundant barn to form dwelling and associated work
- Authority
- Cornwall Council
- Appeal type
- minor · Planning Appeal
- Procedure
- Written Representations
- Development
- residential · Minor Dwellings
- Inspector
- Roberts G
- Postcode
- TR4 8HH
Main issues, as the Inspector framed them
- whether the proposed development would be acceptable having regard to local and national planning policies on the location of new housing within the open countryside
- the effect of the proposed development on the character and appearance of the area
What decided it
The substantial extension required to facilitate conversion, combined with the harmful impact on the character and appearance of the open countryside, significantly and demonstrably outweighed the moderate benefits of housing supply when assessed against the NPPF as a whole.
The moderate benefits of housing supply, self-build and construction employment were significantly and demonstrably outweighed by the significant harm to character and appearance and conflict with development plan policies that remain up-to-date and consistent with the NPPF; the tilted balance did not apply.
What the Inspector cited
- Development plan policies
- Policy 7Policy 12Policy 23Policy 10 of the St Agnes Parish Neighbourhood Development Plan 2018–2030
- National Planning Policy Framework
- Paragraph 11Paragraph 84Paragraph 8Paragraph 135Paragraph 187
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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