In which project delivery method do the designer, contractor, and owner sign one multi-party contract?

The project delivery method that involves the designer, contractor, and owner signing one multi-party contract is Integrated Project Delivery (IPD). In IPD, all key stakeholders come together in a collaborative environment, which fosters teamwork and improves efficiency. This unified contract structure aligns the interests of all parties involved, encouraging early involvement of the contractor and designer, leading to innovation and shared risk and reward.

This approach contrasts with methods like Design Bid Build, where separate contracts exist for design and construction, potentially leading to conflicts and miscommunication. Design Build also has a single contract for design and construction but does not typically include the owner in a multi-party agreement. CM at Risk involves a contractor providing risk management as a separate entity rather than through a collaborative contract with the designer and owner.

By utilizing a single multi-party contract, Integrated Project Delivery helps streamline processes, reduces duplication of efforts, and enhances overall project performance. This method has gained popularity in complex projects where collaboration is crucial to success.