. A House consists of roof, layout and wall. The roof influences health, the layout influences happiness, and walls assure longer durability (days of usage). If most of the customization points are used to improve the roof and the layout, naturally this means weaker walls and the house will collapse earlier. Conversely, a house can have long durability, but not provide as much health or happiness to the inhabitant. We are sure that the market and citizens will define what the most desirable characteristics are to have in a house.