Building Three Car Garage

[shortrack]

floor drains are against code in many places.

yeah X2....I put a floor drain in that I covered with a big piece of plywood under the boat until the building inspector signed off and left. My shop is a separate outbuilding. I inquired about putting in a washroom and shower (essentially installing running water/drains), no dice. If I did want running water it would suddenly become a "residence", long story short the building permit would have been denied and unable to build without a variance ($$$) because you are not allowed to have two "residences" on one lot.

Another thing, check your local building codes VERY CLOSELY! they vary wildly between municipalities. In one municipality I was looking at you could get around the shower/washroom deal by building an enclosed "breezeway" sort of thing to connect the house to the garage therefore it's merely an extension of the house so you can do anything you want, washroom, shower, anything. When I asked about doing that in my town (the next town over) the guy sighed and said "YES!! Im aware you can do that in _______ but you can't do that here!!"