Can you guess what this is

It's a squared shaped thing and it has a roof on top. Outside it has a garage and it has three doors. The front door which opens to the hall, the back door which opens to the kitchen and the basement door. There is also an attic upstairs with one hideabed. It's a huge bed for two people. It looks a bit like the basement but it may not be like it and it might be peculiar to you. There are six rooms. The living room with the television, the guest room, the closet room where there is an aisle, the dining room where you can eat an appetising meal and two bedrooms.