Chestnut Hill Residence was built in 1983 in Brookline, Massachusetts, USA. New owners wanted to make it more spacious and open, so they asked architects of the A + SL Studios and OMA for help. It was also important to re-equipment the technique of the mansion to make it modern and ecological. As a result, the inside space of the residence has become more open. There are new bedrooms for the owners and their young children, extended living room for all the needs of a growing family. New pass along the south side connected living, dining, kitchen and common areas. Now one of the walls is entirely composed of large windows, what provides an access of sunlight into the rooms.
Overhanging eaves helped to realize the scheme of natural conservation. Such shelters provide the opportunity to feel rooms with warm rays of the sun in winter when the sun is low and provide shade in the summer when the sun is high. Geothermal wells help to heat and condition air and energy saving system controls the lighting, work of the house appliances and water supply systems.