Eli5- How do the elevators in luxury/penthouse apartments (where the elevator opens right into the foyer of the apartment and not a common hallway) work? Is there a key? Can you lock it out so no one can come up?

Question

Eli5- How do the elevators in luxury/penthouse apartments (where the elevator opens right into the foyer of the apartment and not a common hallway) work? Is there a key? Can you lock it out so no one can come up?

In: Engineering

Answer 1

Usually there’s one of those electronic key cards readers in the elevator.
Unless you have the right key card the elevator will ignore you every time you press the button for that floor.
A lot of hotels have something similar for access to a particular floor.
Also there’s usually another lockable door between the elevator and the rest of the apartment.