Planning appeal decision
51 Kentish Lane, Brookmans Park, Hatfield, AL9 6NG
Planning appeal 3283546 at 51 Kentish Lane, Brookmans Park, Hatfield, AL9 6NG (Welwyn Hatfield Council) was allowed on 2 May 2023 by Inspector Preston C, by written representations. The main issue, as the Inspector framed it: Whether the outbuilding constitutes inappropriate development within the Green Belt and, if it does, whether the harm to the Green Belt by way of that inappropriateness is outweighed by other considerations such that the very special circumstances necessary to justify the development exist.
Erection of an outbuilding for ancillary use in connection with the main dwelling house with external veranda
- Authority
- Welwyn Hatfield Council
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Preston C
- Postcode
- AL9 6NG
Main issues, as the Inspector framed them
- Whether the outbuilding constitutes inappropriate development within the Green Belt and, if it does, whether the harm to the Green Belt by way of that inappropriateness is outweighed by other considerations such that the very special circumstances necessary to justify the development exist
What decided it
The outbuilding qualifies as an extension to the dwelling under paragraph 149(c) of the NPPF and saved policy RA3 as a normal domestic adjunct, is not disproportionate in scale, and has no adverse visual impact on the Green Belt.
What the Inspector cited
- Development plan policies
- Policy RA3Policy GBSP1
- National Planning Policy Framework
- Paragraph 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
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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 2023
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- 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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