Your point send valid, but architect/builder is usually the bouncing back and forth type relationship though, plans are usually half baked and the surveys aren't right so stuff has to change. And builders are the ones on site every day overseeing, usually the architects just check in.

Bit delayed, but I wasn’t trying to imply that’s what happens at Apple. I know a lot of mechanical engineers there and I understand the approach they take is as you say.

My point was more in general. Should’ve clarified that.