Planning appeal decision
Former Reservoir North of Polmarth, Penpillick, Par, Cornwall, PL24 2RT
Planning appeal 3367293 at Former Reservoir North of Polmarth, Penpillick, Par, Cornwall, PL24 2RT (Cornwall Council) was dismissed on 30 December 2025 by Inspector Jones GP, by written representations. The main issue, as the Inspector framed it: The effect of the proposal on highway safety.
change of use from South West Water storage reservoir to hydroponic farming store
- Authority
- Cornwall Council
- Appeal type
- minor · Planning Appeal
- Procedure
- Written Representations
- Development
- employment-industrial · Minor general industry/storage/warehousing
- Inspector
- Jones GP
- Postcode
- PL24 2RT
Main issues, as the Inspector framed them
- The effect of the proposal on highway safety
What decided it
The proposed access from the A390 would create an unacceptable highway safety risk due to the hazardous road configuration, high speeds, and the absence of realistic evidence about the intensity of the proposed use and resulting traffic generation.
What the Inspector cited
- Development plan policies
- Policy 27 of the Cornwall Local Plan
- National Planning Policy Framework
- Paragraph 116
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
Town Planner Pro holds this letter. The Appeals plan opens it and every other letter we hold, all of them searchable, with the main issues and what decided each case picked out. We do not show letters on the free site because they carry people’s names and addresses.
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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