The house has three bedrooms and one and a half 'baths'. [=one full bathroom and one bathroom with only a sink and a toilet]
Would you like me to 'draw/run a bath' for you? [=to fill the bathtub with water for you?]
a 'full bath' [=a bathroom with a sink, toilet, and a bathtub or shower]
(..) -Well... -I see why Alexei is so fond of you. You know you can't go to the theater. -Annushka! -For heaven's sake. A bath! I'll come in and choose a dress. Anna, I implore you. I'm not ashamed of who I am or what I've done. Are you ashamed for me? Why don't you book a room at the hotel? (..)2012 Anna Karenina