I have this project, a old sanatorium that went corrupt and now is a kind of old mansion, with necromancers and undead living in there. the necromancers are scientists, and the undead their experiment.

The thing is, im not sure about how to populate it. i mean, how many rooms, what rooms it would be (library, kitchen, yard, altar, etc). Any suggestions on where i could look for ideas? could you guys share some with me?