An innovative apartment design with strong potential and possibilities. Traditional courtyard model of the North China were 3-dimensionalized to form active communities throughout the apartment complex. The design is composed by courtyard-lane based public space network, frame structure for units, shared functional units and diverse interchangeable housing units. Localizing shared living with 3-dimensionalized traditional community prototype ensured the cultural identity and easy perception by the residents. The flexible module system makes it possible to be widely applied in different places.