You can set up housing permissions for all your house in the Elder Scrolls Online. Why is it necessary to set up permissions for my house in ESO? Because your friends can join and check out your decorated houses! And you can choose to give them permissions to modify the placement of items, let them turn on/off the lights and many more things. And there is always that one friend that will troll you and the next time you enter your house, it will look nothing like it did before!
To access the permission tab, open the House Editor and go to the settings tab, now from there you have several options on how to adjust your settings. You can even ban specific individuals that you do not want to have access to your house, or you can make it completely private, so nobody can enter.