Talk:NPC/@comment-98.150.186.180-20111213055448/@comment-4674838-20111213060239

1) Corruption being too close to your house (ex. corrupt grass on the surface or ebonstone underneath) can cause housing to not be suitable.

2) There is a bug in 1.1 that causes doors which open into an NPC house to cause housing to not be suitable. Make sure that your door opens to the outside of the room.

3) Double-check that your house meets all the other usual housing requirements.