The stone house toroidal is located in a quiet residential area close to the road to Halong Bay from Hanoi. A green roof and higher walls made of stones with soft colors dark blue to create a landscape that is in the new residential area. Source: Vo Trong Nghia Archdaily architect Architects The rooms surround the oval courtyard, are the other relationships as colony. Traffic flow running around the yard and keep the green roof, connecting all the seats in the house. This court and a green roof garden form a sequential creating a rich relationship between inside and outside the home. Residents discover the changing seasons and realize their comfortable life with nature, with this sequential garden.