Unfortunately our lot is really small also. We already built a garage in the back yard, 1 car, 16x20.
Looking back I should have used up more of the back yard and made it a 2 car, but there would have been no yard left.
Funny you would say that. We have a local guy here that builds metal buildings, and on the back of his business card it states, and I quote "You show me a man that built to large of a shop, and I'll kiss his ***"