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Planning appeal decision

Dismissed27 May 20266007081

12E Grove Lane, London, London, SE5 8SY

Planning appeal 6007081 at 12E Grove Lane, London, London, SE5 8SY (London Borough of Southwark) was dismissed on 27 May 2026 by Inspector Marriott H, by written representations. The main issue, as the Inspector framed it: The effect of the proposed development on the character and appearance of the area, including but not limited to the setting of the nearby Camberwell Green Conservation Area.

for the construction of a mansard loft extension with two front and rear roof windows

Authority
London Borough of Southwark
Appeal type
householder · Planning Appeal
Procedure
Written Representations
Development
residential · Householder developments
Inspector
Marriott H
Postcode
SE5 8SY

Main issues, as the Inspector framed them

  • The effect of the proposed development on the character and appearance of the area, including but not limited to the setting of the nearby Camberwell Green Conservation Area

What decided it

The proposed mansard extension would be visually intrusive and dominate the roofscape in an off-centre position, causing less than substantial harm to the significance of the nearby conservation area that cannot be outweighed by the limited public benefits of the proposal.

What the Inspector cited

Development plan policies
Policy D4 of The London Plan (2021)Policy P13 of The Southwark Plan 2019-2036 (2022)Policy D14 of The Southwark Plan 2019-2036 (2022)
National Planning Policy Framework
Paragraph 213Paragraph 215

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 Southwark

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

  1. Allowed20 October 20266010489
    269-275 Rye Lane and 1A Philip Walk, London, SE15 4UA
  2. Dismissed30 September 20266001859
    5 More London Place, London, SE1 2BY
  3. Dismissed29 September 20266003226
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  4. Dismissed16 September 20266012237
    123 Benhill Road, London, SE5 7LZ
  5. Dismissed17 August 20266007608
    134 Tappesfield Road, London, SE15 3EZ

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.