A computer-implemented method for controlling access of a user to a structure, or objects stored within a compartment of a secure lockbox is provided. In some embodiments, the method may be used to control the access of a user to a structure, or one or more objects, such as a key, located in the compartment of a secure lockbox. In further embodiments the method may include the steps of : receiving identification information describing the user from the secure lockbox or electronically-controllable electronic lock device; receiving identification information of an account holder; verifying the received identification information of the user against the account holder information; providing an unlock code to the secure lockbox or the electronically-controllable electronic lock device if the user identification information matches the account holder information. Also disclosed is an improved secure lockbox having a compartment formed therein, which includes an electronically-actuated latching mechanism coupled to a moveable element, such as a door; a network interface; a sensor for sensing a characteristic related to a user attempting to gain access to the compartment; and a processor, wherein the processor is adapted to cause the network interface to transmit information indicative of a sensed characteristic of a user attempting to gain access to the lockbox compartment and capable of processing an unlock signal.