Planning appeal decision
93 Harmer Green Lane, Welwyn, AL6 0EY
Planning appeal 3328352 at 93 Harmer Green Lane, Welwyn, AL6 0EY (Welwyn Hatfield Council) was dismissed on 1 March 2024 by Inspector Down K, by written representations. The main issue, as the Inspector framed it: Whether the proposed extensions would amount to inappropriate development in the Green Belt, having regard to the National Planning Policy Framework and any relevant development plan policies.
demolition of single storey side extension and car port and erection of two storey side extension in their place. Erection of single storey extensions to rear and southwest elevations
- Authority
- Welwyn Hatfield Council
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Down K
- Postcode
- AL6 0EY
Main issues, as the Inspector framed them
- Whether the proposed extensions would amount to inappropriate development in the Green Belt, having regard to the National Planning Policy Framework and any relevant development plan policies
- The effect of the proposed extensions on the openness of the Green Belt
- The effect of the proposed two storey side extension on the character and appearance of the host dwelling and the surrounding area
- If the proposed extensions would amount to inappropriate development, whether the harm, by reason of inappropriateness and any other harm is clearly outweighed by other considerations, such as to amount to the very special circumstances necessary to justify the development
What decided it
The materially harmful effect of the proposed two storey extension on character and appearance, combined with the inappropriateness and openness harm to the Green Belt, was not clearly outweighed by the fallback position or other considerations.
What the Inspector cited
- Development plan policies
- Policy SADM34Policy SP9
- National Planning Policy Framework
- Paragraph 154
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


More decisions in Welwyn Hatfield
The authority’s record since 2016 · every decision in 2024
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- 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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