According to the NYT and their experts cited, generally public areas are okay and a building can even install a camera with a view of your front door. Public areas are just that and the building according to the article has the right to even know who is coming in and out of your apartment. But what if that camera shows images inside of your apartment when you open the door? What if your neighbor decides to install a peephhole camera which can view the common hallway and see who is coming in and out of your apartment as well? Read the full article below for the answers.