My husband and I are about to build a house, and we were wondering what the price difference would be between a car port and a garage. It is going to be a 2 car with a bonus room on top. Has anyone done this before, and how much did it cost you? Here is the garage plan . . . how much do you think it would cost? http://www.eplans.com/house-plans.hwx/Q/searchId.111292705/offset.1/Plan.HWEPL13167/nav-context.browse Scroll down to see the inside.