This dissertation defines and develops transitional space of housing, which is adaptable to the Chinese environment. It is the integration of community, culture element and sustainable development. Although the lifestyle is changing today, the concept of courtyard which comes from the Chinese vernacular building remains in peoples’ minds. It’s not only a form but also an expression of national culture and a sense of space. There are some attempts for Chinese architects to renovate or reconstruct the “courtyard”, but most of them are low-rise buildings. Facing with the high density, high volume urban living environment, Chinese architects only set vii the first floor yard and roof garden in multi-story or high-rise buildings. To improve the community environment, various levels courtyard space, such as the courtyard among units, community courtyard, are set. These courtyards are regarded as public space which not only plays the role of landscaping but also make people feel comfortable. However, there are still some problems, such as sustainable development, privacy. While there are some good attempts for foreign architects to design courtyard in terms of sustainable technology, the housing they design lack the Chinese culture character. So the design of multi-function transitional space raises the interesting questions for future research and development.