PermittedDC/26/142767Submitted 7 months agoAnnexe
Lewisham
Construction of a detached single-storey residential annexe in the rear garden at 38 Montem Road SE23.
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Progress
Submitted
4 Feb 2026
— completedValidated
4 Feb 2026
— completedConsultation
10 Jun 2026
— completedTarget date
10 Jun 2026
— completedDecided
8 Jun 2026
— completedApplication details
- Reference
- DC/26/142767
- Local authority
- Lewisham
- Ward
- Crofton Park
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 4 Feb 2026
- Validated
- 4 Feb 2026
- Comments close
- 10 Jun 2026
- Target decision
- 10 Jun 2026
- Decided
- 8 Jun 2026
Estimated project value
£97k–£160k
Based on the 54.0m² of floor area stated in the application, at UK average rates (2026). Source: trade estimate, annexe £1,800-£3,000/m².
Floor area gained: 54m² · 1 additional bedrooms
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.