Melbourne and Sydney have both had their large construction site workforce scaled back to 25% under the latest COVID-19 restrictions, with the lockout estimated to cost $500m a day. The impact of this is significant, to say the least. Whilst critical state projects are the only significant exception to these restrictions, all other large construction sites need to “make do” with only 25% of their base line workforce. To make things even more complicated, all workers, including supervisors and managers, must work only at one site unless an exemption applies.