Many minimum dwelling size restrictions are to keep less affluent people from building in a neighborhood. Minimum room size restrictions are for generally reasonable purposes, to ensure safe and not cramped accommodations, and to protect resale values of houses. My town requires a minimum lot size of two acres outside of settlements, which is reasonable to avoid crowding
wells and septic systems. There is no public
water or sewer in the town. There is no minimum building size other than the net effect of state building code room dimensions.