The present invention relates to a method and system for providing a real estate mediation and remodeling using a network. The method comprises the steps of receiving a real estate selling request from a seller, receiving a design drawing from at least one architectural designer in accordance with the real estate selling request, receiving a bidding price from at least one subscriber who selects at least one design drawing received from at least one architectural designer and selecting a purchaser according to a bidding price presented by at least one subscriber.