Budget Build Rule: If It’s Not Written, It Will Cost You Later    Most “overbudget” builds aren’t caused by bad luck. They’re caused by unclear scope. If scope is fuzzy, cost becomes elastic.    Do this first: lock floor area. Don’t “add a meter” repeatedly. That’s how budgets die slowly.   Next: demand a BOQ by phase. Even a basic BOQ forces clarity: foundation, structure, roof, walls, MEP, finishes, external works.   Then: confirm inclusions/exclusions in writing. This is w