I paid a home builder quite a bit of money to create my dream house for me. It has a basement, second floor, and a room for every member of my family and then some. I have been saving for this most of my life because where I live it's cheap to buy land and it's a lot easier to get a house that I want this way instead of spending all of my money on something that I had no input into how it was built. I'm very pleased with the outcome of my home.
I had to first make sure I had a blueprint of what I wanted because home builders Austin pros can't just take what I wanted and build it on the spot. To get this done there were people online that offered to do this work in this software that is called CAD and they then sent me the files through email after I paid. What I recommend is that you get a screenshot of the look of the plans halfway through or so because you want to know they look okay before you spend your money on them.