Drainage and Waste Disposal
Building regulations governing drainage and waste disposal in England. Specifies waste pipe gradients (18–90mm fall per metre for 40mm pipes), trap requirements, foul drainage construction (granular bedding to BS EN 1610), and the four-step priority hierarchy for surface-water discharge (soakaway, watercourse, surface water sewer, combined sewer). Building control inspects drainage runs and connections against Part H before backfill.
Also known as
Pages where Part H comes up
8 guides reference Part H, grouped by build phase.
Want the full picture?
The buildwiz build guides walk through a UK extension in sequence and link to Part H (and every other Approved Document) at the exact stage it bites. That is usually a more productive way to use this material than reading the document cover to cover.