The only way it'll work is to have dedicated houses in the maps, they can be for players but 1 house is the entrance for multiple players and each player can be sent to their own house level
To be more clear: 5 players buys the same house on the map they each are going to visit the house, they all enter but each is in a different inside house.
But it won't be much different than the basic house we already have so it's useless
I did want this feature back then too