I live in a pretty big house. 2100 sq. ft plus a finished basement and roof deck (and small back porch). If you turned it into a surface parking lot you could maybe fit 5 cars on the lot without an active attendant, although you'd lose the spot out front to a curb cut. I get that people who live in the suburbs don't understand the fundamentals of urban math - that there really isn't room for all the cars - but that people who
live here don't either drives me nuts.
