Inspections need to take place while items are still completely visible.
Notifications for extensions to house, shop or office
- Stage 1 – Commencement – may be combined with stage 2
- Stage 2 – Inspection of new excavation for foundations
- Stage 3 – Inspection of oversite – can be combined with stage 4
- Stage 4 – Inspection of new walls, damp proof course and below ground drain pipes for falls and line
- Stage 5 – Inspection of damp-proof membrane and insulation for new ground floor
- Stage 6 – Inspection of wall/roof insulation and roof and floor structure
- Stage 7 – Drain tests of new drains – witnesses of drain tests after backfill
- Stage 8 – Completion of work
Notifications for loft conversions to house/flat
- Stage 1 – Commencement – may be combined with stage 2
- Stage 2 – Inspection of steel beams in the loft area
- Stage 3 – Inspection of floor, wall and roof timbers and insulation – can be combined with stage 2, if feasible
- Stage 4 – Inspection of Drainage connections (if any) – can be combined with stage 5
- Stage 5 – Inspection at Completion – items usually inspected include fire doors, closers, smoke detectors and fire alarms, fire resistance measures, stairs, handrails, room ventilation, headroom, means of escape/layout and receipt of installer certificates as applicable
Notifications for extension and loft conversion to house/flat
- Stage 1 – Commencement – may be combined with stage 2
- Stage 2 – Inspection of new excavation for foundations
- Stage 3 – Inspection of oversite – can be combined with Stage 4
- Stage 4 – Inspection of new walls, damp proof course and below ground drain pipes for falls and line
- Stage 5 – Inspection of damp-proof membrane and insulation for new ground floor
- Stage 6 – Inspection of wall/roof insulation and floor structure
- Stage 6a – Inspection of steel beams in loft area
- Stage 6b – Inspection of floor, wall and roof timbers and insulation
- Stage 7 – Inspection of Drainage connections (if any)
- Stage 7a – Drain tests of new drains – witnesses of drain tests after backfill
- Stage 8 – Completion of works – items usually inspected include fire doors, closers, smoke detectors and fire alarms, fire resistance measures, stairs, handrails, room ventilation, headroom, means of escape/layout and receipt of installer certificates where applicable
Notifications for flat conversions or addition or subtraction of the number of flats in a block
- Stage 1 – Commencement – may be combined with stage 2
- Stage 2 – Inspection of sound insulation
- Stage 3 – Inspection of drainage and ventilation to bathrooms and kitchens
- Stage 4 – Inspection of thermal insulation to lofts, etc and any upgraded windows
- Stage 5 – Completion – can be combined with stage 4 if all is okay. Items usually inspected include automatic smoke detectors and alarms, fire doors, means of escape and emergency lighting units (if any) and receipt of installer certificates/Sound Test/SAP/EPC etc where applicable