I kinda lucked out with the place I live in. I have a 2 car garage---with a connecting door to my engineering office--with a connecting door to a 3 peice bathroom. It works out well because many times people bring me prototype machinery they have built, and want engineering drawings made of it. Then I can use all my hotrod related tools, cherry picker hoist, etcetera to dismantle their machinery in the garage, then slip into my office and make engineering drawings. Big advantage here is that I get to write off my garage area and hotrod tool purchases as belonging to my business at tax time!!!--The huge disadvantage is that this garage is under the front bedrooms, so painting and other stinky jobs, and welding, have to be done in the driveway.