The invention relates to an arrangement and a method for the authorized access of at least one structural element located in a building. The arrangement comprises a remote server which is arranged in a long-range network and allocates and stores a personalized access authorization, in connection, via a first bidirectional communications channel, with a control unit located in the building and used to control said at least one structural element, a terminal which is allocated to a user, registered at the server and connected to said server via a second bidirectional communications channel, and a positioning and identification system for said terminal, which is located in the building and/or global and in communicative connection with the control unit and/or terminal.