When architects and planners work with owners, they usually accept a proposed site and think about how to arrange and orient a building on that site. They develop ideas about what the building should look like in some detail before engaging builders or construction managers in ideas about how the building will be delivered.
Then, if the project cost cannot be brought in line with the budget, another site or an existing building renovation is considered.
AEC teams tend to think first about what to build, then how to build, and finally where else they should think about building.