Planning appeal decision
Land North East of Wide Horizons Tresowes Hill, Ashton, Helston, TR13 9SZ
Planning appeal 3345871 at Land North East of Wide Horizons Tresowes Hill, Ashton, Helston, TR13 9SZ (Cornwall Council) was dismissed on 20 January 2025 by Inspector Thandi B, by written representations. The main issue, as the Inspector framed it: The effect of the proposed development upon the character and appearance of the area including whether it would preserve or enhance the character or appearance of the Tregonning Hill Conservation Area and the Tregonning and Gwinear Mining Districts World Heritage Site.
construction of dwelling house and associated works
- Authority
- Cornwall Council
- Appeal type
- minor · Planning Appeal
- Procedure
- Written Representations
- Development
- residential · Minor Dwellings
- Inspector
- Thandi B
- Postcode
- TR13 9SZ
Main issues, as the Inspector framed them
- The effect of the proposed development upon the character and appearance of the area including whether it would preserve or enhance the character or appearance of the Tregonning Hill Conservation Area and the Tregonning and Gwinear Mining Districts World Heritage Site
What decided it
The harm to the character and appearance of the Tregonning Hill Conservation Area and World Heritage Site through the introduction of built form that would erode the site's undeveloped nature and disrupt the dispersed settlement pattern outweighed the moderate housing benefit of the proposal.
What the Inspector cited
- Development plan policies
- Policy 1Policy 2Policy 12Policy 23Policy 24Policy C1
- National Planning Policy Framework
- Paragraph 213Paragraph 215
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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