We are building a craftsman style home with a porch and pillars and railings, etc. Our architect drew in the plans a porch with all the specs, a patio on the back of the house, a full driveway, and a walkway up to the porch. When a contractor is bidding "per plans" does he have to include all this flatwork that the architect drew in? And secondly, if a contract states that it's "per plans" and theres a line item for flatwork, is it assumed that he's doing all flatwork that's drawn on the plans?