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Planning appeal decision

Dismissed10 September 20266010980

Flat B, 35 Arvon Road, London, N5 1PL

Planning appeal 6010980 at Flat B, 35 Arvon Road, London, N5 1PL (London Borough of Islington) was dismissed on 10 September 2026 by Inspector David Troy, by written representations. The main issue, as the Inspector framed it: the effect of the proposed rear roof dormer extension on the character and appearance of the host property, the adjoining terrace of properties of which it forms a part and the area.

flat roof dormer extension to roof of rear outrigger and enlarged rear first floor window

Authority
London Borough of Islington
Appeal type
Planning
Procedure
Written
Development
residential
Inspector
David Troy
Postcode
N5 1PL

Main issues, as the Inspector framed them

  • the effect of the proposed rear roof dormer extension on the character and appearance of the host property, the adjoining terrace of properties of which it forms a part and the area

What decided it

The proposed rear dormer extension, by virtue of its scale, siting and design, would cause unacceptable harm to the character and appearance of the host property, adjoining terrace and the area, contrary to the development plan.

the modest benefits of additional accommodation, energy efficiency and sustainable construction measures were insufficient to outweigh the harm to character and appearance and development plan conflicts

What the Inspector cited

Development plan policies
Policy D3Policy D4Policy PLAN1

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 Islington

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

  1. Allowed22 October 20266006605
    131 - 132 Upper Street, London, N1 1QP
  2. Allowed16 October 20266005930
    30 Sekforde Street, London, EC1R 0HH
  3. Allowed24 September 20266005904
    Upper Flat, 23 Ronalds Road, London, N5 1XF
  4. Dismissed24 September 20266005590
    2 Highbury Grove Court, Highbury Grove, London, N5 2NG
  5. Notice upheld23 September 20263364241
    First and Second Floors, 72 Prebend Street, Islington, London, N1 8PR

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.