The Extension Works
UK only: we design and build extensions in London & the South East of England (Surrey, Hampshire & Berkshire) — we can’t quote for projects outside the UK.
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trench fill vs strip

Full Plans vs Building Notice in England: 48 Hours or Plan Checks

Compare full plans and building notice for an England rear extension. Learn how each route affects checks, inspections, certificates, and delay risk.

The Extension Works 18 October 2026
Full Plans vs Building Notice in England: 48 Hours or Plan Checks