The estate (1) has an entry port (10) with a common door (D0) for providing access to common areas (20). The common areas are provided with doors (D1-D4) having respective locking systems (44). An access housing (41) includes an input interface for an identification code. A central unit (40) is connected to the access housing, and control systems (45) associated with the locking systems are connected to the central unit. The central unit stores a database having an access strategy with control instructions, and transmits a control signal to each control system based on the access strategy. Independent claims are also included for the following : (1) a method for controlling access to a real estate (2) a computer program having instructions for controlling access to a real estate.