9 Avondale Avenue Staines-upon-Thames TW18 2PT
Certificate of Lawfulness for proposed development for a garage conversion to habitable accommodation facilitated by replacement of existing garage door with UPVC double glazed windows and replacement of existing garage roof and installation of x2 Velux roof windows in main house roof and installation of new window in rear gable wall and internal alterations
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Progress
Application details
- Reference
- 26/00971/CPD
- Local authority
- Spelthorne
- Property type
- House
Key dates
- Submitted
- 17 Sept 2026
- Validated
- 17 Sept 2026
- Comments close
- 21 Oct 2026
- Target decision
- 12 Nov 2026
Estimated project value
£8k–£35k
Typical UK cost for this job type, at UK average rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 garage conversion cost guide.
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.