With the improvement of the basement design of Shanghai villa, the functionality of the basement is more prominent. Some owners like to design it as a private leisure space, including gym, billiards room, theater and other facilities. Some of them are designed as small leisure places such as bars and teahouses. There is no special restriction on whether these activity areas are open or closed, and they can be arranged at will according to the owner's own personality.

However, the completeness of functions does not mean the proliferation of functions. The author once saw the basement of a villa, and more than 200 spaces contained seven or eight functions such as sauna, swimming pool, shower room, chess room, theater and bar. It has the feeling that "the sparrow is small and complete", but it has left the regret that "everything is available, but nothing is done well" for the people who live in it. So generally speaking, a basement with 3-4 functions is a good choice, which not only improves the quality of life, but also won't feel the cramped space.