The Government requires cost estimates for, at a minimum, the following phases of design
Establishing an initial project baseline.
Preliminary concept design, with multiple schemes of design
Final concept design preceding value engineering
Final concept design
Design development preceding value engineering
Final design development
75% construction documents
90% construction documents
100% construction documents
The estimate must include all elements of the proposed project work (including all design-
contract modifications), regardless of the design phase. The estimate must all include
verification and continuity of cost budgets in the transfer from estimate to the contractor's
schedule of values. Where costs are included for details not indicated on the drawings and
specifications, the independent government estimator must include design assumptions to
complete the scope. The estimator must check all cost-estimate calculations for accuracy and
completeness, including assessing whether estimates completely and accurately represent
design features and quantities.
Lump-sum pricing is not acceptable without description and quantification.
2 warm-lit shell vs. tenant-improvement (TI) cost estimates
GSA's pricing policy calls for a separate tenant-improvement breakdown of all tenant-space
fitout, identified by agency. You can find GSA's pricing policy and the related modifications and
clarifications at the following external Web site: http://www.gsa.gov/rentpricingpolicy
general requirements and principles