Planning appeal decision
40 Hillway, London, N6 6HH
Planning appeal 3340242 at 40 Hillway, London, N6 6HH (London Borough of Camden) was allowed in part (a split decision) on 13 June 2025 by Inspector Moss J, by written representations. The main issue, as the Inspector framed it: The effect of the development on the character and appearance of the site and surrounding area, and whether the development preserves or enhances the character or appearance of the Holly Lodge Conservation Area.
the Installation of air conditioning units & associated acoustic enclosure (resubmission with overheating assessment added). Summary
- Authority
- London Borough of Camden
- Appeal type
- enforcement · Enforcement Notice
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Moss J
- Postcode
- N6 6HH
Main issues, as the Inspector framed them
- The effect of the development on the character and appearance of the site and surrounding area, and whether the development preserves or enhances the character or appearance of the Holly Lodge Conservation Area
- The effect of the development on climate change
What decided it
The development causes unacceptable harm to the character and appearance of the Holly Lodge Conservation Area, fails to comply with climate change mitigation policies, and no material considerations of sufficient weight justify departure from the development plan.
What the Inspector cited
- Development plan policies
- Policy D1 (Design)Policy D2 (Heritage)Policy CC1 (Climate change mitigation)Policy CC2 (Adapting to climate change)Policy DH2 (Development Proposals in Highgate's Conservation Areas)Policy SI4 (Managing heat risk)Policy SI2 (Minimising greenhouse gas emissions)
- National Planning Policy Framework
- Paragraph 205Paragraph 206Paragraph 208
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 Camden
The authority’s record since 2016 · every decision in 2025
- Notice upheld17 September 20263376816Flat 1, Mexborough, Pratt Street, London, NW1 0BL
- Notice varied and upheld17 September 20263372650107 West End Lane, London, NW6 4SY
- Notice upheld17 September 202633612563 Collard Place, Lonon, NW1 8DU
- Notice varied and upheld16 September 20263356264Flat A, 190 Fordwych Road, London, NW2 3NX
- Quashed On Legal Grounds15 September 2026337845812 Argyle Street, London, WC1H 8EG
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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