In this video, Kendra goes through the house history of the Creel House and uncovers why they probably picked this house in Rome, Georgia as the set location. The house is a Second Empire, which is a Victorian style defined by the mansard roof.
@4:00 - Photos of Claremont House vs Creel House
Here is another video on Second Empire houses - https://youtu.be/blOFnaqADI4
And a video on Witch Houses in movies & tv - https://youtu.be/YIg5ckf3g-E