Planning appeal decision
25 The Avenue, Welwyn, AL6 0PW
Planning appeal 3289534 at 25 The Avenue, Welwyn, AL6 0PW (Welwyn Hatfield Council) was dismissed on 10 July 2023 by Inspector Preston C, by written representations. The main issue, as the Inspector framed it: Whether the proposal would amount to inappropriate development within the Green Belt, including an assessment of the effect on the character and appearance of the area as required under saved policy RA3 of the Local Plan.
Part single & part two storey front, side & rear extensions and new rear dormer and garage roof alterations
- Authority
- Welwyn Hatfield Council
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Preston C
- Postcode
- AL6 0PW
Main issues, as the Inspector framed them
- Whether the proposal would amount to inappropriate development within the Green Belt, including an assessment of the effect on the character and appearance of the area as required under saved policy RA3 of the Local Plan
- The effect on the openness of the Green Belt
What decided it
The proposal amounts to a disproportionate addition to the original building when taken cumulatively with previous extensions, constituting inappropriate development within the Green Belt that causes harm to openness, which cannot be outweighed in the absence of very special circumstances.
What the Inspector cited
- Development plan policies
- RA3SADM34
- National Planning Policy Framework
- Paragraph 11Paragraph 137Paragraph 147Paragraph 149
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


More decisions in Welwyn Hatfield
The authority’s record since 2016 · every decision in 2023
- Dismissed5 October 202660098922A Whitehill, Welwyn, AL6 9AF
- Dismissed9 September 20266010292Rose Cottage, Kentish Lane, Hatfield, AL9 6JP
- Dismissed28 May 2026600320349 The Ridgeway, Cuffley, Potters Bar, Hertfordshire, EN6 4BD
- Dismissed27 May 20266003536East Lodge, Judge's Hill, Northaw, Potters Bar, Hertfordshire, EN6 4NL
- Planning permission granted6 March 2026335467120 Ayot Green, Ayot St. Peter, Welwyn, AL6 9AB
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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