Stay in residence complex (like apartment) must pass a gate that always guarded by security 24 hours. They will open the gate to come in and come out. For a visitor, you have to ask permission. The security will ask your name and whom you will visit, then they will make a call to a person that you are headed for. If the person is be in a place, they will allow you inside or maybe that person can pick you up at the gate.
Looking for a place to stay in Colombia was a little bit amusing. A lot of place to stay with condition and facilities. For example you can choose a small house or big house in complex area or even in apartment. Stay with friend college or with house-parent or with a big family. They maybe have private or share bath room, TV (in your room or living room), but wifi is a must for internet connection. Some of them provide meals and laundry. Some others allow us to use the kicthen. Depend on the condition.