User blog comment:Paul.rea/Teen Wolf Behind the Scenes - Episode Locations 1-6/@comment-74.176.193.232-20130810105657

Hey Paul I think this is the house that was use as the Hale House in season 2 (Where Lydia has that flashback and sees Petter and finally discovers the everything was an illusion. Im not sure if its the same one but they look alike and the architectual details match. Here is the link, the house/mansion is currently on sale and was once own by the CEO of Coca Cola, J. Paul Austin.

http://www.realtor.com/realestateandhomes-detail/711-Broadland-Rd-Nw_Atlanta_GA_30327_M53235-82079?source=web