Tender should confirm a well-tested project, not reveal its true cost for the first time. The strongest budgets develop alongside the drawings.
Start with the decisions that move cost
Structure, glazing, services, access, and the level of finish usually matter more than small cosmetic substitutions. Price those choices while the design can still respond.
- Record inclusions and exclusions
- Separate fixed costs from allowances
- Identify site and approval risks
- Update the estimate at design checkpoints
“A clear budget makes change visible.”
Cairn pre-construction team
Keep one shared version
The owner, architect, consultants, and builder should work from the same dated cost plan. When an assumption changes, record the reason and the effect before the next decision.