I think there should be a option to buy the deed of a house, giving you acess to lock, put props you would like in it, and maybe a little custiomize.

Im thinking just like car_menu you would open up a window thats like, !house_menu and it would give you a number of $ you need to spend to buy this. Each house could go for like 1m for the people who can actually buy it.

Idk, if its even possible, but its just a suggestion