Tiny houses are becoming more and more popular and I'm sure you have seen the show on HGTV. If not you should. Pretty interesting!
Checked out like 5 minutes of that show on Netflix, then turned to Mega Mansions. Bigger is still better.
You mean like this 72K sqft "single family", private residence? Chatau Pensmore in the Ozarks. https://en.m.wikipedia.org/wiki/Pensmore
I like the tiny houses on wheels ones, which are pretty much just customized RVs/trailers. I don't think I'd want to live in one full time though. It'd be cool for traveling though.
Ya especially if it's more efficient. My house is 1080 sq feet and 2 of the bedrooms are empty save a weight bench i never use. Was the second cheapest house my realator could show me though. The cheapest was at the foot of the runway at the air station. I heard one f16 taking off and was like ya this one wont work.