More like 50 acres and the residence is 30,000 sq.ft. for a family of four. F!!!! .... can you imagine. Did more research and the family that owns this property turned it into a polo training facility and farm. The reason I made this post is because I belong to a map discussion group and people are saying they are discarded bbq pits, bathtubs, or saunas, but that doesn't make sense to me. Why throw away new material like that? Such a waste even in Beverly Hills. My guess is that they are animal troughs that haven't been used yet.
I spotted one being built in Bel air yesterday, it looked big enough to be a small hotel. Two parcels about 4 acres, the owner shows as "M".
Close by is a house with almost an acre of GLA and another with over an acre of GLA, according to Realist. The listing for one said something about a ballroom. I guess if you have that kind of money you have a lot of "friends", if you want to. An acre of floor space is ridiculous for a "house" imho.