Budget at the level you can actually control
A work breakdown structure splits the project into phases, then tasks, then cost elements: labour, materials, subcontract, expenses, plant. Each gets a budget. The temptation is to break it down finely, on the theory that more detail is more control. It is the opposite.
- Phases and tasks, with a budget on each cost element
- Cost elements that match how the work is actually bought
- A coarse structure kept current beats a fine one nobody updates