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Allowed20 October 20266015494

16 Lydon Road, London, SW4 0HW

Planning appeal 6015494 at 16 Lydon Road, London, SW4 0HW (London Borough of Lambeth) was allowed on 20 October 2026, by written representations. The main issue, as the Inspector framed it: the effect of the proposal on the character and appearance of the host building.

described on the application form as “Mansard Loft Extension with velux windows to front. New external doors and window to rear at ground floor level

Authority
London Borough of Lambeth
Appeal type
householder · Householder
Procedure
Written Part 1
Development
residential
Postcode
SW4 0HW

Main issues, as the Inspector framed them

  • the effect of the proposal on the character and appearance of the host building
  • whether it would preserve or enhance the character or appearance of the Clapham Conservation Area

What decided it

The mansard roof addition, by reason of its size and siting, would be an incongruous addition at odds with the prevailing roof forms and would result in substantial harm to the character and appearance of the Clapham Conservation Area.

What the Inspector cited

Development plan policies
Policy Q2Policy Q5Policy Q8Policy Q11Policy Q22

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 Lambeth

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

  1. Dismissed26 October 20266013497
    48 Clapham Road, London, SW9 0JQ
  2. Dismissed20 October 20266015253
    16 Braxted Park, London, SW16 3DW
  3. Dismissed20 October 20266014222
    Morleys Department Store, 472 - 488 Brixton Road, London, SW9 8EH
  4. Dismissed20 October 20266014083
    Bus Shelter, Pavement Outside 451-453 Brixton Road, London, SE9 8HH
  5. Dismissed16 October 20266009699
    28 Amesbury Avenue, Lambeth, London, SW2 3AA

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.