Old Hanoi is a system of villages in the city of water areas, large trees, friendly spaces, close to local people. In the context of the urbanization, high buildings have been established fastly, high speed of concretizing, high density, traffic jams, dust, human and living environment, polluted environment, etc. The idea is to build a "HANGING VILLAGE" in vertical axis, creating a peaceful ecosystem which helps filter dust and reduce noise. The building uses two-layer low-E glasses material, non-heating bricks.