Planning appeal decision
450 Sutton Common Road, Sutton, SM3 9JN
Planning appeal 3304273 at 450 Sutton Common Road, Sutton, SM3 9JN (London Borough of Sutton) was allowed on 15 December 2022 by Inspector Evans J, by written representations. The main issue, as the Inspector framed it: Whether or not the appeal development represents ancillary accommodation or a new separate residential unit.
the conversion of detached garage for use as annexe accommodation associated with the main house
- Authority
- London Borough of Sutton
- Appeal type
- householder · Householder (HAS)
- Procedure
- Written Representations
- Development
- residential · Householder developments
- Inspector
- Evans J
- Postcode
- SM3 9JN
Main issues, as the Inspector framed them
- Whether or not the appeal development represents ancillary accommodation or a new separate residential unit
What decided it
The close physical and functional relationship between the proposed annexe and the host dwelling, including shared garden space and visual connection, satisfied the Inspector that the development would constitute ancillary accommodation rather than a separate dwelling.
What the Inspector cited
- Development plan policies
- Policy 7Policy 28
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 Sutton
The authority’s record since 2016 · every decision in 2022
- Dismissed19 October 20266002198103 Marlow Drive, North Cheam, SM3 9BD
- Allowed15 October 20266009820Grass Verge of Sparrow Farm Road, London, KT17 2DF
- Dismissed27 August 2026600526985 Priory Road, North Cheam, SM3 8LY
- Dismissed7 August 202660081243 Carshalton Grove, Sutton, SM1 4LY
- Dismissed27 July 20266006764136 Grove Road, Sutton, Sutton, SM1 2DF
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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