Before the first crew arrives
Identify which permanent toilets are available during mobilisation and who may use them. If temporary facilities are needed, include expected workforce, workdays and any early setup activity. Avoid counting only the main construction phase.
Agree who receives equipment and who can authorise the position. A site drawing should show relevant entrances and operating areas without assuming the delivery vehicle can follow a passenger-car route.
When the work changes shape
A new trade, a larger shift or an altered work zone can change restroom demand. Compare the actual pattern with the initial brief and discuss equipment or service adjustments before a problem becomes routine.
Protect access as deliveries, skips and stored materials arrive. If facilities need moving, coordinate the new position with the provider instead of leaving a crew to improvise a relocation.
At completion and handover
Do not assume temporary facilities can leave on the day the main building work ends. Snagging, cleaning and handover teams may still need access, while the property owner may have a separate removal deadline.
Confirm the final period, collection instructions and the person responsible for entry. Keep the rental scope aligned with the work that remains rather than extending or cancelling by habit.