The big day is here! The time has finally come to break ground, or start digging. The work will happen in sequence and each step will require supervision.
Therefore you will need to have a plan in place for how the building works will be supervised, and of course a schedule and a means to keep track of costs. Any overruns (in time or money) will need to be balanced as the build progresses. The whole point of having planned your project at the early stages was to make this part of the build as hassle free as possible.