I have my front door locked to everyone except household and i ve hired a maid to clean my house.
Lock doors in sims 3.
The sims 2 featured a download on a unofficial site that was a 5 lock bank door were a sim with a key could lock and unlock it but people without one couldent.
Im sure if you ask arond the people who make realy good sims downloads you might find a sims 3 version of it or someone willing to give it a shot.
In the sims 4 the ability to lock door returns in patch 21.
Doors and pets edit.
While door locking settings are usually honored in some circumstances they may be completely ignored such as a burglary a repo man visit or a confiscation made by the social worker.
At that point the door will open by itself.
Unfortunately the maid just waits outside my house until i have to manually dismiss her.
Once the player walks through the door.