Photographic record
Foundations before pour, insulation before plasterboard, fire stopping before closure, drainage before backfill. One photo per item beats a thousand words at handover.
Delivery notes
Insulation product, thickness, batch. Fire board type and certification. Steel section sizes. The paperwork that proves you fitted what was specified.
Inspector comments
Keep every written comment from Building Control on the project file. They form part of the audit trail that supports the Completion Certificate.