There’s a lot that goes into sustainability, one of which is actual footprint–size of house, for example. Our house is 1080 square feet on three floors. It’s just about big enough for all the stuff we have, mostly. With a little weeding our stuff would fit. However, the common space is a little tight for anything resembling a crowd. The presence of summer guests has made that clearer.
So someday we could expand the house about 8 feet, which is a lot for a 20×22 footprint.
But my father and his three siblings grew up in a one-bedroom apartment in Mumbai. Half the family slept in the living room. Do two adults and three pets need more space?
I don’t know.