Planning appeal decision
14 Willow Tree Lane, Hayes, UB4 9BB
Planning appeal 6004329 at 14 Willow Tree Lane, Hayes, UB4 9BB (London Borough of Hillingdon) was dismissed on 23 July 2026 by Inspector Jane Smith, by written representations. The main issue, as the Inspector framed it: the effect of the proposed parking and access arrangements on highway safety.
Change of use from Class C3 dwelling house to 7 -bedroom/maximum 8 person HMO Use Class Sui Generis
- Authority
- London Borough of Hillingdon
- Appeal type
- minor · Planning
- Procedure
- Written
- Development
- residential
- Inspector
- Jane Smith
- Postcode
- UB4 9BB
Main issues, as the Inspector framed them
- the effect of the proposed parking and access arrangements on highway safety
- whether suitable living conditions would be provided for future occupiers, having particular regard to the outlook from Bedroom 3 and the proposed outdoor amenity space
- the effect of the proposed change of use on living conditions for occupiers of neighbouring properties, with particular regard to noise and disturbance
- whether suitable provision would be made for cycle storage
- the effect on the character and appearance of the area
- the effect of the proposed change of use on the supply of larger dwellings
What decided it
The detrimental effect on highway safety from constrained parking and access arrangements combined with the material harm to living conditions of neighbouring occupiers from increased noise and disturbance significantly and demonstrably outweighed the modest housing benefits, particularly given the site is already in residential use.
The significant harm to highway safety and the harm to living conditions of neighbouring occupiers, both carrying significant weight and consistent with NPPF paragraph 135 on well-designed places, significantly and demonstrably outweighed the very modest benefits of additional housing supply in a context of housing land supply shortfall, such that the presumption in favour of sustainable development did not apply.
What the Inspector cited
- Development plan policies
- Policy DMT1Policy DMT2Policy DMT6Policy T4Policy T6Policy T5Policy DMT5Policy DMH5Policy DMHB18Policy DMHB11Policy DMHB16Policy DMH1Policy DMH2
- National Planning Policy Framework
- Paragraph 11Paragraph 135
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 Hillingdon
The authority’s record since 2016 · every decision in 2026
- Dismissed27 October 2026600985618-20 Wilmar Close, Hayes, UB4 8ET
- Dismissed18 September 2026601151673 High Street, Ruislip, HA4 8JB
- Dismissed15 September 20266010520Grove Farm, Rickmansworth Road, Harefield, UB9 6JY
- Dismissed7 August 2026600546910 Lawn Avenue, West Drayton, UB7 7AQ
- Dismissed23 July 2026600824621 Green Lane, Hillingdon, Uxbridge, UB8 3ED
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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