London Borough of Southwark
Certificate of Lawfulness (Proposed) for the erection of a loft dormer extension, with 2no. rooflights on the front slope , 1no. rooflight on the roof of the dormer extension, and partial removal of the rear chimney stack
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Progress
Application details
- Reference
- 25/AP/1220
- Local authority
- Southwark
- Ward
- PERY
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 24 Apr 2025
- Validated
- 24 Apr 2025
- Target decision
- 18 Jun 2025
- Decided
- 15 May 2025
Estimated project value
£25k–£53k
Based on the 21.0m² of floor area stated in the application, at UK average rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².
Floor area gained: 21m² · 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.
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