The house faces Nanyang terrace and rushes to Hutong Road.

The house faces Nanyang terrace and rushes to Hutong Road. The answer is: the balcony is to melt evil. There is a special practice in ancient geomantic omen: consider a certain direction as evil and unlucky, and add ancillary facilities in that direction to block the evil, so that the evil and evil will not impact the main building, balcony and ancillary facilities of the house.