PermittedDC/25/141088Submitted over a year agoLoft conversion
Lewisham
Construction of a roof extension (retrospective), together with 3 roof lights to the front elevation and associated works at 18 Horncastle Road, SE12.
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Progress
Submitted
12 Aug 2025
— completedValidated
12 Aug 2025
— completedConsultation
—
— completedTarget date
—
— completedDecided
7 Oct 2025
— completedApplication details
- Reference
- DC/25/141088
- Local authority
- Lewisham
- Ward
- Grove Park
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 12 Aug 2025
- Validated
- 12 Aug 2025
- Decided
- 7 Oct 2025
Estimated project value
£42k–£88k
Based on the 35.0m² 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: 35m² · 2 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.