I was thinking to maybe add a for sale houses section next to the pre build. Section, so that someone builded a house and that they have the possibility to place that house on the for sale houses section ,the house price will just be rhe value of the plot. When someone else seee the house for sale they can buy that house. And it will go off the houses for sale section and the builder gets when they join a notification with “user has buyed toure house and gave tou a price of -amount-“ this would give every person a change to have a cool home. Also make it that it gives a warning on the section houses for sale when the build might be laggy for mobile users. This would be a fun change wich many people would be happy with