The method of operating an elevator system in a building with at least one building door (2, 2′, 2″) includes through opening and/or closing the building door (2, 2′, 2″) the floor (1, 1′, 1″) of the opened and/or closed building door (2, 2′, 2″) is defined as the start floor and a destination call for an elevator car (7) to the start floor is actuated. As soon as the elevator car (7) has reached the start floor, an elevator door (3, 3′, 3″) of the start floor is opened. As soon as at least one user has entered the elevator car (7), the opened elevator door (3, 3′, 3″) is closed and the user is conveyed by the elevator car (7) to a destination floor, wherein the destination floor is defined by a destination call stored for a start floor.