Planning appeal decision
Onslow House First Floor Flat, 1 Crummock Chase, Surbiton, KT6 4NP
Planning appeal 6009912 at Onslow House First Floor Flat, 1 Crummock Chase, Surbiton, KT6 4NP (Royal Borough of Kingston Upon Thames) was dismissed on 6 October 2026, by written representations. The main issue, as the Inspector framed it: whether the proposed development would be in a suitable location having regard to local policies on employment uses.
the conversion of existing ancillary office space Class E (B1) on the first floor into 1No three bedroom flat Class C3
- Appeal type
- minor · Planning
- Procedure
- Written
- Development
- residential
- Postcode
- KT6 4NP
Main issues, as the Inspector framed them
- whether the proposed development would be in a suitable location having regard to local policies on employment uses
- whether the proposed development would provide adequate refuse and recycling facilities
- whether the proposed development would provide satisfactory living conditions for future residents with regard to the provision of adequate internal spaces
- whether the proposed development would ensure adequate levels of internal water usage
What decided it
The failure to demonstrate through rigorous marketing that the office space was surplus to employment needs, combined with the considerable policy conflict with employment protection policies, substantially outweighed the benefits of providing one additional dwelling in a location with a housing land supply shortfall.
applying Policy S4, the substantial benefits of providing one additional dwelling in a sustainable location and contributing to the housing land supply shortfall were substantially outweighed by the considerable harm to the vitality, viability and employment growth of the Surbiton District Centre.
What the Inspector cited
- Development plan policies
- DM17CS12SD9E1DM10D6D3SI5DM4DM13
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 Royal Borough of Kingston Upon Thames
The authority’s record since 2016 · every decision in 2026
- Allowed23 October 2026601476713 Hawks Road, Kingston Upon Thames, KT1 3DS
- Dismissed16 October 20266005462150 Ewell Road, Surbiton, KT6 6HE
- Dismissed8 October 2026601404969 Sheephouse Way, New Malden, KT3 5PF
- Dismissed7 October 2026601191211 Kingsdowne Road, Surbiton, KT6 6JZ
- Dismissed29 September 2026600998856 Burlington Road, New Malden, KT3 4NU
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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