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Dismissed9 January 20253347324

31 Marsden Green, Welwyn Garden City, Hertfordshire, AL8 6YD

Planning appeal 3347324 at 31 Marsden Green, Welwyn Garden City, Hertfordshire, AL8 6YD (Welwyn Hatfield Council) was dismissed on 9 January 2025 by Inspector Biggers P, by written representations. The main issue, as the Inspector framed it: The effect of the proposed development on the character and appearance of the host dwelling, the surroundings of Marsden Green and the wider Welwyn Garden City Conservation Area.

single storey porch and rear extension and part two storey side extension

Authority
Welwyn Hatfield Council
Appeal type
householder · Householder (HAS)
Procedure
Written Representations
Development
residential · Householder developments
Inspector
Biggers P
Postcode
AL8 6YD

Main issues, as the Inspector framed them

  • The effect of the proposed development on the character and appearance of the host dwelling, the surroundings of Marsden Green and the wider Welwyn Garden City Conservation Area

What decided it

The cumulative scale and disproportionate width of the side extension, combined with the rear extension, would overwhelm the modest scale of the original house and harm the character and appearance of the Conservation Area, with no sufficient public benefits to outweigh this harm.

What the Inspector cited

Development plan policies
Policy SP15Policy SADM15Policy SP9
National Planning Policy Framework
Paragraph 212Paragraph 215Paragraph 139Paragraph 129

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 2025

  1. Allowed6 October 20266012577
    6 Chelveston, Welwyn Garden City, AL7 2PW
  2. Dismissed5 October 20266009892
    2A Whitehill, Welwyn, AL6 9AF
  3. Dismissed9 September 20266010292
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  4. Allowed4 September 20266012516
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  5. Dismissed20 August 20266006744
    30 Honeysuckle Gardens, Hatfield, AL10 8PJ

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.