When I was house hunting last year, I saw a gorgeous house that was on the lower end of my price range. I set up an appointment with a realtor to view the place. It was listed as a three bedroom, two bath home.
Technically, it was a ZERO bedroom, two bath home. The master bedroom was a loft, and only had two full walls (one wall was a partial, the other was a balcony railing overlooking the foyer/entrance). At first, we thought it was a second living room on the second floor (with a balcony!), but it turned out that the other two rooms upstairs were the master bathroom and a walk-in closet!
The main level of the home had a kitchen, dining room, living room, and a side room that would have been perfect as an office off the living room.
The other two "bedrooms" were in the walk-out basement... Which meant that they couldn't actually be marketed as bedrooms, based on what my realtor said about state housing regulations. So according to regulations, the house was a zero bedroom.