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Dismissed2 July 20253361554

12 Datchworth Green, Datchworth, Knebworth, Hertfordshire, SG3 6TL

Planning appeal 3361554 at 12 Datchworth Green, Datchworth, Knebworth, Hertfordshire, SG3 6TL (East Hertfordshire District Council) was dismissed on 2 July 2025 by Inspector Ellis G, by written representations. The main issue, as the Inspector framed it: Whether the proposed extension would be inappropriate development within the Green Belt.

a sin gle storey rear/side extension

Authority
East Hertfordshire District Council
Appeal type
householder · Householder (HAS)
Procedure
Written Representations
Development
residential · Householder developments
Inspector
Ellis G
Postcode
SG3 6TL

Main issues, as the Inspector framed them

  • Whether the proposed extension would be inappropriate development within the Green Belt
  • If so, whether other considerations clearly outweigh the harm to the Green Belt so as to amount to very special circumstances

What decided it

The cumulative increase in the building's size compared to the original dwelling (73% on appellant's figures) constitutes disproportionate additions contrary to NPPF paragraph 154(c), and the other considerations advanced do not amount to very special circumstances sufficient to outweigh the harm to the Green Belt.

What the Inspector cited

Development plan policies
Policy GBR1Policy VILL2
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 applied

The decision letter

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The authority’s record since 2016 · every decision in 2025

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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.