PROBLEM TO BE SOLVED : To provide an information collection system, a method and a program related to a transaction case of real estate, capable of stably collecting information related to the transaction case of the real estate without causing a trouble.SOLUTION : This information collection system related to the transaction case of the real estate has : a target lot address retrieval part 11 as a position information input means inputted with the position information of a target lot that is the real estate; an individual factor input part 12 inputted with an individual factor including a physical situation of the target lot; a conclusion information input part 23 as a transaction information input means inputted with transaction information related to the transaction of the target lot; a property evaluation information registration part 21 as a transaction case information storage means storing the individual factor and conclusion information associatively to the target lot; and a latitude/longitude coordinate correction part 27 as a position information change means changing the position information of the target lot.COPYRIGHT : (C)2007, JPO&INPIT