Ultralight,
reminds me of a true story of an older cranky bachelor engineer. Years ago he worked for the same Megacorp that I just retired from and I didn't know him, so this is second-hand.
He owned a house in a cul-de-sac in a decent neighborhood. When the house next door came up for sale, he bought it and rented to a family he liked. Then proceeded to do the same with the remaining 5 houses in the cul-de-sac, so he owns all of the property and the only people who live around him are those he hand-selected. Closest thing to an intentional housing situation that I'd heard about that was actually successful