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Planning appeal decision

Dismissed20 March 20266002070

135 Cotterill Road, Tolworth, KT6 7UJ

Planning appeal 6002070 at 135 Cotterill Road, Tolworth, KT6 7UJ (Royal Borough of Kingston Upon Thames) was dismissed on 20 March 2026 by Inspector Everitt E, 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 building and surrounding area.

loft conversion with rear dormer to accommodate an additional bedroom and en-suite

Authority
Royal Borough of Kingston Upon Thames
Appeal type
householder · Householder (HAS)
Procedure
Written Representations
Development
residential · Householder developments
Inspector
Everitt E
Postcode
KT6 7UJ

Main issues, as the Inspector framed them

  • the effect of the proposed development on the character and appearance of the host building and surrounding area
  • the effect of the proposed development on the solar panel on the roof of No 133

What decided it

The proposed dormer would appear as a bulky, dominant and overwhelming addition that would unbalance the existing broadly uniform roofscape of the terrace and conflict with the traditional design of the host building, causing harmful effects on character and appearance that outweigh the personal benefits to the appellant.

What the Inspector cited

Development plan policies
Policy CS8Policy DM10Policy DM11Policy D3

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 Royal Borough of Kingston Upon Thames

The authority’s record since 2016 · every decision in 2026

  1. Allowed23 October 20266014767
    13 Hawks Road, Kingston Upon Thames, KT1 3DS
  2. Dismissed16 October 20266005462
    150 Ewell Road, Surbiton, KT6 6HE
  3. Dismissed8 October 20266014049
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  4. Dismissed7 October 20266011912
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  5. Dismissed6 October 20266009912
    Onslow House First Floor Flat, 1 Crummock Chase, Surbiton, KT6 4NP

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.