Planning appeal decision
21 Duncan Terrace, London, N1 8BZ
Planning appeal 3364605 at 21 Duncan Terrace, London, N1 8BZ (London Borough of Islington) was dismissed on 27 October 2025 by Inspector Francis M, by written representations. The main issue, as the Inspector framed it: Whether the proposals would preserve the Grade II listed building or its setting or any features of special architectural or historic interest which it possesses.
sensitive internal refurbishment works together with, lower and ground floor extension/side infill, the introduction of front and rear steps, roof lights, fenestration enhancements, landscaping and associated works
- Authority
- London Borough of Islington
- Appeal type
- minor · Planning Appeal
- Procedure
- Written Representations
- Development
- residential · Other minor developments
- Inspector
- Francis M
- Postcode
- N1 8BZ
Main issues, as the Inspector framed them
- Whether the proposals would preserve the Grade II listed building or its setting or any features of special architectural or historic interest which it possesses
- Whether the proposals would preserve or enhance the character or appearance of the Duncan Terrace/Colebrooke Row Conservation Area
- The effect of the proposal on the living conditions of the occupiers of No 20 Duncan Terrace with regards to outlook, daylight and sunlight (Appeal B only)
What decided it
The extent of loss of original fabric and the inappropriate extensions to the rear, combined with other proposed works, constitute moderate less than substantial harm to the listed building's significance that is not outweighed by the public benefits of restoration and residential use.
What the Inspector cited
- Development plan policies
- Policy DH1Policy DH2Policy HC1 (Islington Local Plan 2023)Policy HC1 (London Plan 2021)Policy PLAN1 (Islington Local Plan)
- National Planning Policy Framework
- Paragraph 212Paragraph 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 appliedThe decision letter
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With an account
What an account adds to this decision


More decisions in London Borough of Islington
The authority’s record since 2016 · every decision in 2025
- Allowed22 October 20266006605131 - 132 Upper Street, London, N1 1QP
- Allowed16 October 2026600593030 Sekforde Street, London, EC1R 0HH
- Allowed24 September 20266005904Upper Flat, 23 Ronalds Road, London, N5 1XF
- Dismissed24 September 202660055902 Highbury Grove Court, Highbury Grove, London, N5 2NG
- Notice upheld23 September 20263364241First 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.
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