Very cool I hope to be doing this same thing this comming year so I'll be watching closely as my addition is planned to be exactly the same size. Congrats!!!!!
Going for simplicity, eh? I originally had it at 41 X 25 but my father-in-law is all about simplicity. We changed it to 40 X 24 so we could just do 8 foot wall sections. It will also minimize waste, expense, etc. We took the workshop from 9 x 9 to 8 x 8 for the same reason.
Are you going to put plumbing in? I went back and forth on it for awhile but ultimately decided to bring in a sewer line & water line and cap them off at the floor in the workshop. I was concerned about doing anything that may deter future buyers and I thought the option of plumbing would make the house more attractive. The way it is, we could market it a number of ways: workshop, mother-in-law suite, etc. They could turn the workshop into a bathroom. I don't know if it will pay off in the end but you never know if you don't try.
