Vidu, people aren't allowing the auto demolish to happen because the amount they get from the default of the house is paltry in comparison to the sum of time and gil used in the purchase of the house. Good liquidation should not involve property value in this case because the amount of gil needed is going to change based on server and the point in time that the house went into default. The best option would be a housing token based on the size of the plot, which can be used to purchase a plot of the same size upon returning to the game. Additionally, all assets that were in the home as decorations should be permanently stored and accredited to the proper FC owner. Probably a tab that the FC owner and permitted associates have access to.

That's my own take on it, but it beats the heck out of gil.