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
This application is under consideration - no decision has been issued yet. Plota predicts a decision around 13 Oct 2026, from Sutton's recent extensions.
Site constraints 4
Checked on 11 September 2026. Historic England, the Environment Agency, Natural England 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.
Every application in Sutton - and every UK council - as a live feed, an API, or a bulk CSV export.
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Erection of a single storey side extension.
Important details
Decision outlook
Day 26 of the 56-day target. Sutton usually decides extensions by day 55.
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 10 Sept 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%).
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10 Lumley Gardens Cheam SM3 8NW
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