Where i live, farm/ranch we have no restrictions on building size, but your property tax may go up as you expand or develop a yard. My main heated shop is 30'x30', has the big lathe and welding equipment and most of the other tools. In winter we park a tractor and skid steer in their so things get a little tight. Basement work shop is being developed, small lathe and mill/drill and some tools. I have a large area to work with as it's just me and 2 hounds, no SWMBO.