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Planning permission granted6 March 20263354671

20 Ayot Green, Ayot St. Peter, Welwyn, AL6 9AB

Planning appeal 3354671 at 20 Ayot Green, Ayot St. Peter, Welwyn, AL6 9AB (Welwyn Hatfield Council) was allowed on 6 March 2026 by Inspector De Freitas Terceiro P, by written representations. The main issue, as the Inspector framed it: whether the development comprises inappropriate development in the Green Belt having regard to the National Planning Policy Framework and any relevant development plan policies.

without planning permission, and within the last ten years, the material change of use of land from a single dwelling house to a mixed use consisting of a single dwelling house and a detached single storey annex providing short term rental accommodation (“the unauthorised use”)

Authority
Welwyn Hatfield Council
Appeal type
enforcement · Enforcement Notice
Procedure
Written Representations
Development
leisure-sport · Change of use
Inspector
De Freitas Terceiro P
Postcode
AL6 9AB

Main issues, as the Inspector framed them

  • whether the development comprises inappropriate development in the Green Belt having regard to the National Planning Policy Framework and any relevant development plan policies
  • the effect of the development on the character and appearance of the Conservation Area

What decided it

The development preserves the openness of the Green Belt and does not result in physical alteration to the building, thereby satisfying the exception in NPPF paragraph 155(h)(v) for material changes of use that preserve openness and do not conflict with Green Belt purposes.

What the Inspector cited

Development plan policies
Policy SP1Policy SP9Policy SADM16Policy SADM34Policy SADM15
National Planning Policy Framework
Paragraph 155

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 applied

The decision letter

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More decisions in Welwyn Hatfield

The authority’s record since 2016 · every decision in 2026

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  2. Dismissed9 September 20266010292
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  3. Dismissed28 May 20266003203
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  4. Dismissed27 May 20266003536
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  5. Allowed17 February 20266001316
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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.

In the app this decision sits on the map beside every appeal around it, with its letter to read and the main issues, policies and judgments cited picked out.