According to Wikipedia, the cast lived at Urban Oasis Bed and Breakfast in the Inman Park neighborhood. The site seems to confirm it:
https://urbanoasisbandb.com/ - The site has a virutal walk through inside the whole house which is quite neat.
Available to rent again next month, making it one of rare RW houses that the public can stay at. 130A Krog St. Atlanta, GA 30307