What to do with a Chicago granny/in-law/basement unit?

[Asim Purses]

I've got a basement unit which has adequate ceiling height, lighting, egress, kitchen, bath and bedroom with light and closet. It's however connected to the building meter that I pay. That tenant which I inherited with purchasing the building is leaving, so what options am I left with?

Airbnb? Continue to rent out - but at what risk/liability? It's not in the ADU zone and not sure how much more time can be spent waiting. It could be duplexed down - but the investment return isn't there.

Looking for shared experience with this gray area. 

[Nathan Gesner]

You shouldn't have any problem renting a basement apartment in an owner-occupied property. I'm curious why you didn't investigate this during the purchase? Call the zoning office and anonymously pose your question, and it won't be a "grey area" any more.