The standard response by archeologists is .. “it must be some sort of religeous symbol”.
It could never be some rich guy’s house, or a house of ill repute.
Since there are similar sites located nearby, maybe it was a town hall. Nobody knows just yet, but a true and exact answer might make dozens of professor’s books obsolete, and we can’t have that.
Fifty or sixty years ago readers digest did a story describing how todays archeologists would assess a modern bathroom, it was hilarious.