The Castle is the least expensive house with 3 floors. Although it has 9 rooms, most of the rooms that it has are very small, being almost the same size of a small bathroom. The Castle costs 1,499, which is the same price as the Donut Shop.
On the outside, there is a big tree with small windows around the two towers. When changing the color of the house, the tops of the towers and the banners are colored.
- There is a bigger counterpart of this house, the Ruler's Castle.
- The inside of the Castle is composed of 3 floors similar to Tiny Homes. Each has a main room, a smaller bedroom, and a bathroom.