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Allowed20 May 20253361352

59 St Marys Grove, Chiswick, London, W4 3LW

Planning appeal 3361352 at 59 St Marys Grove, Chiswick, London, W4 3LW (London Borough of Hounslow) was allowed on 20 May 2025 by Inspector Sarah Colebourne, by written representations. The main issue, as the Inspector framed it: the effect of the proposed development on the character and appearance of the dwelling and the area.

a rear roof extension to the house

Authority
London Borough of Hounslow
Appeal type
householder · Householder (HAS)
Procedure
Written Representations
Development
residential · Householder developments
Inspector
Sarah Colebourne
Postcode
W4 3LW

Main issues, as the Inspector framed them

  • the effect of the proposed development on the character and appearance of the dwelling and the area
  • the effect of the proposed development on the living conditions of the neighbouring occupiers, particularly in regard to light and outlook at no 61 St Mary's Grove

What decided it

The existence of an already-implemented Certificate of Lawful Development for a substantially similar roof extension scheme on the same site, which would cause equal harm, made it perverse to dismiss the appeal despite the identified conflict with development plan policies regarding neighbour outlook.

What the Inspector cited

Development plan policies
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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 London Borough of Hounslow

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

  1. Allowed26 October 20266015572
    3 Chatsworth Crescent, Hounslow, TW3 2PE
  2. Dismissed23 October 20266011172
    45 Colonial Road, Feltham, TW14 8AA
  3. Dismissed23 October 20266011171
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  4. Allowed21 October 20266013999
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  5. Dismissed19 October 20266015127
    251 Jersey Road, Isleworth, TW7 4RF

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.