PermittedDC/26/143246Submitted 6 months agoRear extension
Lewisham
Construction of a single-storey rear extension and replacement of rear first floor bay window with a flush window to 50 Derby Hill, SE23.
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Progress
Submitted
9 Mar 2026
— completedValidated
9 Mar 2026
— completedConsultation
1 Apr 2026
— completedTarget date
—
— completedDecided
22 Apr 2026
— completedApplication details
- Reference
- DC/26/143246
- Local authority
- Lewisham
- Ward
- Forest Hill
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 9 Mar 2026
- Validated
- 9 Mar 2026
- Comments close
- 1 Apr 2026
- Decided
- 22 Apr 2026
Estimated project value
£37k–£61k
Based on the 20.3m² of floor area stated in the application, at UK average rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².
Floor area gained: 20.34m²
Planning constraints
No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.
Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.