PURPOSE : A method for purchasing house is provided to protect assets of a client by preventing in advance the fraud business of a real estate in purchasing or renting the real estate.CONSTITUTION : New service products are posted up on the web site and managed. The client looks around the web site and contents of the service products. When the client requests the service, an agency notifies the result to the client after the investigation concerned about offering the service. When the client pays a service charge, the agency investigates the requested items and notifies the examination result to the client.? KIPO 2002