Total value of housing replacement (original value) = total construction area × housing replacement unit price+housing increase or decrease value.
Present value of the house (net value) = complete replacement value of the house (original value) × appraisal degree of the house (%)
Accrued depreciation of house = full replacement price of house (original value)-present value of house (net value)
Annual depreciation amount = full replacement value of the house (original value) ×( 1- residual value rate) ÷ service life.
Annual depreciation rate = annual depreciation amount ÷ complete replacement value (original value) × 100%.
The serviceable life = the durable life of the house × the old and new degree of the house being evaluated (%)
Principle of house appraisal and appraisal: It is the basic principle of house appraisal and appraisal to determine the value of all kinds of houses based on the full replacement price of houses. The full value of housing replacement refers to the total investment that should be spent on rebuilding such houses one year before housing evaluation. ? The determination of the full replacement value includes the construction and installation cost, outdoor engineering cost, land acquisition cost, demolition compensation fee and the increase or decrease of the adjustment factors such as the location, orientation and floor of the house.