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Planning appeal decision

Dismissed23 September 20266008944

512 High Road, Tottenham, London, N17 9SX

Planning appeal 6008944 at 512 High Road, Tottenham, London, N17 9SX (London Borough of Haringey) was dismissed on 23 September 2026, by written representations. The main issue, as the Inspector framed it: The effect of the proposed mansard roof extension on the character and appearance of the Bruce Grove Conservation Area, with particular regard to the appeal property being a locally-listed building.

Conversion and mansard extension of the upper floors to create 3 no. 1-bed flats to replace a 3-bed maisonette

Authority
London Borough of Haringey
Appeal type
minor · Planning
Procedure
Written
Development
residential
Postcode
N17 9SX

Main issues, as the Inspector framed them

  • The effect of the proposed mansard roof extension on the character and appearance of the Bruce Grove Conservation Area, with particular regard to the appeal property being a locally-listed building

What decided it

The moderate harm to the significance of the conservation area and the locally-listed building caused by the incongruous mansard extension would not be outweighed by the modest housing benefit of the proposal.

The modest boost to housing supply by creating three flats was substantially outweighed by the moderate harm to the significance of the Bruce Grove Conservation Area and the locally-listed building, with the adverse heritage effects prevailing.

What the Inspector cited

Development plan policies
Policy SP11 of the 2017 Haringey Local Plan Strategic Policies DocumentPolicy DM1 of the 2017 Haringey Development Management DPDPolicy DM9 of the 2017 Haringey Development Management DPDPolicy DM12 of the 2017 Haringey Development Management DPDPolicy D6 of the London Plan 2021Policy HC1 of the London Plan 2021

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.

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The decision letter

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More decisions in London Borough of Haringey

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

  1. Dismissed14 October 20266008251
    6 Ewart Grove, Wood Green, London, N22 5NX
  2. Allowed13 October 20266010745
    Rakkas 365-369 Green Lanes, Haringey, London, N4 1DY
  3. Dismissed13 October 20266007195
    38 Parkhurst Road, Wood Green, London, N22 8JQ
  4. Dismissed9 October 20266011332
    5 Kimberley Gardens, Tottenham, London, N4 1LB
  5. Dismissed30 September 20263367051
    109 Great Cambridge Road, London, N17 7LN

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.