"Commercial and residential dual-use" is generally the concept of land use, that is, a plot can be used for both commercial housing development and residential development. However, after the completion of the construction project, the specific use of the house belongs to commercial housing or residence, and there is no legal concept of commercial and residential dual-use housing. If the developer says that the building is "commercial and residential", it is likely that part of the same building is commercial (with more podium buildings and lower floors) and part is residential. The purpose of the real estate license is to write commercial housing, not residential; If commercial housing is not specified, it may also be commercial office buildings such as serviced apartments and single apartments. There is still a big difference between commercial office buildings and residential buildings. Such as land use years, various taxes and fees, settlement, etc. Due to the different real estate policies of provinces, autonomous regions and municipalities directly under the Central Government, this paper takes Beijing as an example to analyze the differences between residential buildings and commercial office buildings.

(1) Settle down: No matter what the name of the house is, you can determine whether you can settle down by paying attention to its land use and service life. If it is a residence, its land use period must be 70 years and it can be registered. Others can't be registered. At present, the nature of land is divided into three categories: the first category is residential land with a service life of 70 years; The second category is comprehensive land with a service life of 50 years; The third category is commercial land with a service life of 40 years. Residential land includes apartments, ordinary houses, villas and other land, comprehensive land includes office buildings, office buildings, science, education, culture, health and other land, and commercial land includes shopping malls, supermarkets, trade, services, finance, trust, futures and other industries.

(2) On the pricing standard of public utilities, commercial office buildings are higher than residential buildings;

(3) The service life of residential buildings is 70 years, while that of commercial office buildings is only 50 years;

(4) The transaction tax is different. If it is an ordinary house below 140 square meters, you only need to pay the deed tax of 1.5% (if an individual buys an ordinary house below 90 square meters for the first time after 1 1 in 2008, the deed tax rate will be temporarily adjusted to 1%), but if it is a commercial office building,

(5) Shared building area. The planning and design standard of commercial office buildings is higher than that of ordinary houses. For example, the entrance hall is relatively large, and there must be two entrances and exits of stairs and entrance hall according to regulations, which undoubtedly increases the apportioned construction area;

(6) The proportion and term of mortgage loan. At present, the maximum residential mortgage loan can reach 80% 30 years, but the maximum commercial office building is generally only 60% 10 years;

(7) The use function of the house is deficient. Generally speaking, business office rooms do not have separate kitchens;

(8) Pure residential quarters should be equipped with community facilities, such as kindergartens, schools and clubs. If it is for commercial and residential use, no or less facilities can be provided.