Vietnamese architect Vo Trong Nghia compiled the cultural elements of the city of Saigon, Vietnam into a design that celebrates the Saigonese love affair with a having large varieties of tropical plants and flowers in their balconies, courtyards and streets.
The house, designed for a 30 year old couple and their mother, is a typical tube house constructed on a 13'x65' lot. The front and back facades are entirely composed of layers of concrete planters cantilevered from two side walls which gives it its name "Stacking Green". The distance between the planters and their height is adjusted according to the height of the plants, which varies from 10 to 15 inches. Automatic irrigation pipes are used for watering.
The house is constructed using an RC frame, widely used in Vietnam. The partition walls are very few in order to keep interior fluency and view of green facades from every point of the house. Daylight is diffused as it filters through the leaves of the plants providing a comfort and privacy through natural shading for the residents. The planters also serve as noise barriers and a natural air filter producing oxygen and consuming CO2. Skylights and air grates of the roof also serve to release hot air as it rises in the house, allowing for a healthy flow of air, reducing the need for air conditioning. This sustainably beautiful design shows the immense possibilities of building green in dense cities with small building plots.