Welcome to Arizona! We came here in 1985 to escape Nebraska winters. Hopefully the HOA didn't hold up your proposal until after April, just to limit your garage door height( I hate HOA's). Your architect doesn't seem to appreciate your desire for shop floor space to actually do some work, as it appears his design is just for vehicle storage. I installed a 100A service in my new 24x32 workshop with 240V: 1-50A welder, 1-30A welder, 1-30A A/C, 1-30A comp, 1-30A lift(with a welder outlet on the lift post), 120V: 2-20A for wall outlets, 1-20A for outside outlets, 1- 20A for a brake lathe and tire machine, 1-15A for inside LED lighting, 1-15A for outside lighting and 6 empty slots in the box. Wall outlets are at 46" high, 7'6" apart with every other receptacle being a double. My shop has barn doors on the 24' side with an opening of 10'w x 8-8"h and will be used for vehicle maintenance, race prep, welding and fabrication. No plans for anything super tall in the shop_ except the lift.
