21 and 23 Winchester Road, Twickenham Data via plota.co.uk
Proposal
Raising of the ridge and eaves, replacement of front and rear roof slopes and the erection of rear dormer extensions to the rear roof slope and outrigger to each property. Data via plota.co.uk
Application progress
This application is under consideration - no decision has been issued yet. Plota predicts a decision between 18 Oct 2026 and 25 Oct 2026, from Richmond upon Thames's recent extensions.
Site constraints 3
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 Richmond upon Thames - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
- Council
- Richmond upon Thames
- Application type
- Full Application
- Received
- 4 Sept 2026
- Validated
- 5 Sept 2026
- Ward
- St. Margarets & North Twickenham Ward [SMN]
- Case officer
- Show
- Target decision
- 30 Oct 2026
- Applicant
- Show
- Agent
- Cameron Jones Planning
Decision outlook
Day 7 of the 56-day target. Richmond upon Thames usually decides extensions by day 48.
Plota live figures for extensions decided by Richmond upon Thames in the last twelve months, from validation. Richmond upon Thames decision record →
Consultation & key dates
- Statutory expiry
- 26 Sept 2026
Richmond upon Thames ranks #130 out of 296 councils for householder decision speed. Richmond upon Thames is also one of the strictest councils - it refuses more householder applications than almost any other, with only 82% approved vs 90% nationally.
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21 and 23 Winchester Road, Twickenham
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