PROBLEM TO BE SOLVED : To provide a system, a method, and a program for providing real estate evaluation information that provides evaluation information of an appropriate real estate price.SOLUTION : A property management server 20 is connected to a plurality of real estate company terminals 10, acquires property data of real estates therefrom and unifies the management thereof. The property management server 20 is connected to a price index calculation server 30. The price index calculation server 30 acquires the property data of the real estates managed by the property management server 20, and calculates a first price index and a second price index, in the property data of the real estates, for every area classification and for every price category. The price index calculation server 30 transmits the first price index and the second price index to an investor' s terminal 50 connected thereto via a housing price index providing server 40.