First, we will outline the differences of these two methods of approaching a construction project.
In the Design Build method of construction the owner hires a single entity, the Design Builder. The Design Builder will use in house or sub contract with other outside professionals for the design and engineering of the project. This can include such services as surveyor, architect, civil and structural engineers and interior designers. Design Build is a highly collaborative process with the owner having a single source of contact that performs the collaboration between service providers, while providing real time input on costs and scheduling.
Design Bid Build
For many years Design Bid Build was the traditional method of approaching a construction project. The owner would interview multiple architects, hire one that would design the entire project independently from the contractor. The owner then would put these documents out to general contractors for fixed project bids. Collaboration between service providers would come through the architect with costs and scheduling input coming later in the process after the contractor is selected.
Owners should consider the following in determining the best method of approaching a construction project:
Owners who have little time or funding set aside to closely manage the construction process, or who don’t want to bear project risk, find the more collaborative Design Build process much more effective.
Design Build Advantages:
A study by Penn State found that Design Build projects have the following:
Numerous studies have been completed by the Construction Industry Institute comparing Design Build to Design Bid Build, below are some results: