@Leland James
Are you building this home for yourself or is it a spec home?
When I go to build a new home in a new area the first thing I do is call the local building department, ask them what is needed, often they will have these things listed on their website. Some counties or cities require engineered drawings and some don't. Some require me as a general contractor to have different liscensing. I always find it helpful to call and get as much information as possible.
As was stated already there can be many complexities to building a home from ground up. I find that I have differing considerations when I build for myself compared to when I am building a spec home. Don't get me wrong I want it to be high quality no matter what. But I also know that most consumers out there don't care if there is 1" closed cell spray foam on their walls and that we used fiberglass composite windows vs vinyl windows and the list could go on, but these are things that I care about. Most consumers want high quality at the lowest price and that's the balance I go for when building my spec homes.