progressive design-build
Progressive design-build is a construction project delivery method that adds defined phases to the design-build process. The design-builder is involved very early in the pre-construction and design creation phase, but establishing a final price is postponed until the design completion and construction phase.
Additional Information
The project owner selects a design-builder based on qualifications alone, and as the design is nearing completion the design-builder provides a guaranteed maximum price for the final phase of the project. Unlike traditional design-build, there is generally an option to "off ramp" by terminating the contract if the final price cannot be agreed upon.
Progressive design-build gives the owner much more involvement in the design decisions than it would have in a normal design-build project and allows the design-builder to provide a much more informed guaranteed maximum price because the design is further along when the price is established.
