That is perfect :) I'm only on .6 of an acre but i hate cutting grass so that's ok :) Never measured my garage but it's 2.5 car wide and i can fit 2 cars deep which is great so i have plenty of room to work on stuff and a bit of storage.
Perfect I believe, i was in Grand Rapids last time I was up your way..
I don't have to mowe much at all, I agree, I don't like mowing, those trees keep the grass from growing, all shade .