BobS
I cannot speak to the add-on possibilities for an existing house…probably pretty tough to do. I only know that the whole process for building a custom house is long, expensive, and frustrating from what I’ve heard.
As to parking restrictions, it is not a problem on the big custom lots of 1+ acre. I’m in a Casita, a bunch of close in, higher density single story houses, where # of vehicles is very limited & no street parking overnight. Plenty of parking for guests in all housing types, if not overnight. Also, no RVs, trailers, work trucks.
