10 Lumley Gardens Cheam SM3 8NW Data via plota.co.uk
Proposal
Conversion of loft space involving alterations to existing roofline, a dormer extension at rear, a window to second floor flank elevation and rooflights to front roofslope. Data via plota.co.uk
Application progress
Approved on 8 Oct 2026 · Delegated Decision · Last checked 9 Oct 2026
Documents 11
Decision & officer reports 2
Statements & assessments 1
Plans & drawings 7
Application forms 1
Site constraints 9
Checked on 9 October 2026. Historic England, the Environment Agency, Natural England, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI), Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Sales history 1
Last sold for £550,000 in December 2022. Semi-detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in March 2022, the latest held for this property. The building may have changed since. View the certificate
Every application in Sutton - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
How this decision compares
Decided in 50 days from validation, 5 days faster than Sutton's median of 55 for extensions. Approved, as 88% of extensions here are.
Plota live figures for extensions decided by Sutton in the last twelve months, from validation. Sutton decision record →
Public comments
No public comments yet.
Last counted 9 Oct 2026
Consultation & key dates
- Statutory expiry
- 14 Oct 2026
- Env. assessment
- No
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
Sutton is one of the fastest councils in England for householder decisions, ranking #14 out of 296. Only 13% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Householder applications are slightly more likely to be approved here (93%) than the national average (90%).
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.
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10 Lumley Gardens Cheam SM3 8NW
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