If your project is approved for our Design + Build delivery method, here's an overview of the process. Below are the contract relationship diagrams. In the first diagram, the owner has prime contracts with the contractor, while Tarconstruction (as CMa) holds a prime contract with the owner in an advisory capacity. In the second diagram, Tarconstruction (as CMc) assumes a more substantial ROLE by holding the contracts with the contractor, acting as a subcontractor to Tarconstruction (CMc).