Define the decision
Identify whether the estimate is for site selection, feasibility, a design comparison or a funding decision. Set a date and a clear scope basis so the total can be used in the right context.
Concept and design-stage budgeting
Preliminary Construction Estimates
A preliminary estimate gives a project team an early cost basis before the design is complete. Use the available drawings and documented assumptions to compare options and expose allowances that could change as scope develops.
An early estimate works best when the team can see which parts are measured and which are allowances. We structure the budget around the available drawings and identify the items most likely to move when the design advances.
Update the estimate when the design or scope assumptions change.
What this service covers
Separate measured and assumed work
Use available areas, system descriptions and drawings to measure identifiable work. List allowances for incomplete systems separately and explain which design or site assumptions are driving them.
Plan the next update
Record the information that would materially improve the estimate, such as geotechnical findings, equipment schedules or utility requirements. Keep escalation and contingency visible when comparing later versions.
What the scope can include
- Area and system assumptions
- Trade-level cost ranges
- Allowances and exclusions
- Design decisions that could move cost
What to send with your plans
Send concept plans, gross areas, location, project use, finish expectations and the target construction start.
Frequently asked questions
Can we update the estimate as design advances?
Yes. Keep the original basis and compare revisions at the trade level so scope changes can be distinguished from pricing changes.
How often should an early budget be updated?
Revisit it when the owner changes the scope, a key design assumption is resolved or the available market pricing changes materially.
Request an Estimate View Estimating Samples
Budget inputs by drawing stage
At concept stage, provide location, intended use, approximate areas and major assumptions. At schematic stage, add dimensions, outline systems and finish ranges. At design development, replace material allowances with quantities and document the items still missing from the drawings.
What the estimate can show
- Scope and quantity detail arranged by the trade, system, phase or bid item.
- Document references so scope questions can be traced to the applicable plans or specifications.
- Assumptions and exclusions kept visible, with separate pricing or allowances when requested.
Have a bid set ready?
Tell us what you need priced, which drawings govern the bid and when it is due.