Planning appeal decision
23 Prospect Road, London, NW2 2JU
Planning appeal 3267727 at 23 Prospect Road, London, NW2 2JU (London Borough of Barnet) was allowed in part (a split decision) on 29 September 2021 by Inspector Thompson F, by written representations. The main issue, as the Inspector framed it: The effect of the extension on the character and appearance of the house and area generally.
without planning permission, the creation of a second-floor rear extension to an existing rear dormer
- Authority
- London Borough of Barnet
- Appeal type
- enforcement · Enforcement Notice
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Thompson F
- Postcode
- NW2 2JU
Main issues, as the Inspector framed them
- The effect of the extension on the character and appearance of the house and area generally
What decided it
The extension's bulky and dominant appearance within the roof slope, poorly related to the dwelling's character and contrary to development plan policies requiring high quality design that preserves local character, with no material considerations of sufficient weight to indicate determination other than in accordance with the development plan.
The harm to character and appearance outweighed any other considerations; the fallback position of the extant planning permission for a smaller extension was given significant weight as a material consideration but did not justify the appeal scheme.
What the Inspector cited
- Development plan policies
- Policy DM01Policy CS5Policy D3 of The London Plan (2021)Policy CS1
- National Planning Policy Framework
- Paragraph 120
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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What an account adds to this decision


More decisions in London Borough of Barnet
The authority’s record since 2016 · every decision in 2021
- Notice varied and upheld29 September 2026335964435 Hillview Gardens, London, NW4 2JJ
- Notice upheld28 August 2026336160153 Essex Park, London, N3 1ND
- Notice varied and upheld27 August 2026336134827 Dale Grove, London, N12 8EE
- Notice upheld26 August 2026337608848 Oldberry Road, Edgware, HA8 9DB
- Notice upheld18 August 20263337532140A Sydney Road, London, N10 2RN
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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