Stick built is also more flexibility in terms of timetable. The roofers, can be on site before the framers are done. The electricians and plumbers show up righ

Stick built is also more flexibility in terms of timetable. The roofers, can be on site before the framers are done. The electricians and plumbers show up right as the framers wrap up their work and before the roofers are done. Or they can wait a week because as long as they gets done before drywall nobody cares. Insulation can happen concurrent with plumbing and electrical or after. When you consider that all these parties have N jobs that need doing this added flexibility to show up early or late in the process helps a lot. Concrete is somewhat flexible but isn't that flexible in terms of timetable of all the steps.