For high-rise, small-high-rise, multi-storey, villas and commercial, residential and non-residential buildings with different shapes and uses, the average construction and installation cost of all kinds of houses is determined as 1.500 yuan/square meter, which is used as the calculation of the first-phase maintenance fund for residential construction and installation cost per square meter. Residential buildings without elevators and residential buildings with elevators shall be deposited with the first maintenance fund at 5% and 8% of the construction and installation project cost per square meter respectively. That is, the purchaser who purchases the house without elevator shall deposit it according to 75 yuan/m2 (calculated by construction area); The purchaser who purchases the house with elevator shall pay the deposit according to 120 yuan/m2 (according to the construction area); Commercial housing (including resettlement houses, etc.). If there is no elevator, the purchaser shall deposit it according to 40 yuan/m2 (according to the construction area); For the house with elevator, the purchaser shall deposit it according to 90 yuan/m2 (calculated by construction area).