Commercial housing is also required in this way, which is used for the overhaul and transformation of public facilities and equipment in the property field in the future. Generally speaking, if the unit price of the house is higher than 2,300 yuan, take 2,300 yuan as the base, and multiply the building area of your house by 2.5/ 100. If the unit price of the house is lower than 2,300 yuan, you have to pay.