GB 50016-2014 (2018年版) 第2.1.4条
| Commercial service outlets: small business premises such as shops, post offices, savings banks, and barbershops, located on the first floor or on the first and second floors of residential buildings, with a floor area of each separated unit not exceeding 300 m² (this term does not apply to hotel buildings, but attention must be paid to the distinction when built together with residential buildings).