On the first design, the shapes that i use is torus, sphere and pyramid. The idea starts from the sphere in the middle, wrapped by the torus which has the same smoothness effect as sphere, and then supported by pyramid which the shape is really stiff. The main door will be located on the pyramid, connected to a little bit of the torus which has elevator on it. Then the sphere in the middle is dining room and kitchen. The rooms will be located around the torus. In this part i haven't draw how i will divide them.

This Second design is more simplistic and it looks more build able compared to the first one, but at the same time its too boring.The sphere has been modified into an egg shape sphere and will act as the living room. The torus will become balcony that completely surrounds the living room. The other rest of the room will be placed on the tube shaped part. The top part of the tube will be dining room and kitchen, and below it will be bedrooms. On the ground floor there will be a small living room just for the entrance, and then access to the rest of the levels will be lift and stairs.