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Dismissed2 June 20253364084

21 Cornwall Road, Harpenden, AL5 4TQ

Planning appeal 3364084 at 21 Cornwall Road, Harpenden, AL5 4TQ (St Albans City Council) was dismissed on 2 June 2025 by Inspector Davis J, 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 which the Authority recognise as an undesignated heritage asset, and on the Harpenden Conservation Area.

roof dormer for loft conversion

Authority
St Albans City Council
Appeal type
householder · Householder (HAS)
Procedure
Written Representations
Development
residential · Householder developments
Inspector
Davis J
Postcode
AL5 4TQ

Main issues, as the Inspector framed them

  • The effect of the proposed development on the character and appearance of the host dwelling which the Authority recognise as an undesignated heritage asset, and on the Harpenden Conservation Area

What decided it

The proposed dormer would appear overly dominant and incongruous with the original scale, character and appearance of the host dwelling and the Harpenden Conservation Area, causing less than substantial harm with no public benefits to outweigh it.

What the Inspector cited

Development plan policies
Policy 69Policy 72Policy 85Policy 87Policy ESD1Policy ESD2
National Planning Policy Framework
Paragraph 215Paragraph 216

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 St Albans City Council

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

  1. Dismissed25 September 20266009808
    58 And 60 Waverley Road St, St Albans, St Albans, AL3 5PE
  2. Dismissed22 September 20266013802
    33 Oakfield Road, Harpenden, AL52NP
  3. Invalid17 September 20266008247
    18 Manland Way, Harpenden, AL5 4QS
  4. Planning permission granted15 September 20263311314
    Land at Former Butterfly World, Miriam Lane, St. Albans, Hertfordshire, AL2 3NY
  5. Notice upheld15 September 20263311308
    Land at Former Butterfly World, Miriam Lane, St. Albans, Hertfordshire, AL2 3NY

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.