Office buildings basically need supporting facilities: business district, large, medium and small meeting rooms, business reception area, business rest area or business hotel, dining area, bank (2-3) or bank self-service outlets, internal staff dining area, business activity center, etc. The supporting facilities of office buildings usually refer to the auxiliary service facilities inside and outside the office buildings, mainly commercial services, and gradually form the supporting circle of office buildings. Among them, financial post and telecommunications financial facilities refer to banks, post offices, etc. In this regard, it is best to be near the community. If not, there is no need to force them. Of course, buyers can also go to the neighborhood near the intentional property to find out if there is. In addition, the traffic conditions of traffic supporting communities can be divided into traffic conditions outside the community and traffic conditions outside the community. Internal traffic includes whether the parking space design in the community is sufficient, whether the parking space design is at least related to the number of households 1: 1, whether it is convenient for private cars to enter and leave the community, and whether the parking space design will disturb the people. At present, most of the real estate design is the separation of people and vehicles, which is a better traffic design in the house, safe and quiet.