The invention relates to a method and a system for providing an automated searching service on the real estate market so that the automated searching service is offered to potential buyers for searching for objects on sale, and the automated searching service is offered to potential sellers for searching for the potential buyers. In the activity carried out in the data network, the potential buyer looking for a suitable object is represented by a purchase advertisement (107) provided with certain constraint requirements and stored in a data base, and the potential seller selling a certain object is represented by a sales advertisement (102) provided with the distinguishing features of the object on sale and stored in the data base. From the points of view of the potential buyer and the potential seller, the activity is symmetrical so that the potential seller is offered an opportunity to receive a report (104), when they so desire, presenting the purchase advertisements selected on the basis of predefined requirements and, correspondingly, the potential buyer is offered an opportunity to receive a report (105), when they so desire, presenting the sales advertisements selected on the basis of predefined requirements.