I just noticed something while re-watching this episode for a fic I'm in the midst of working on re-searching stuff for. About 22 minutes in I caught an image of the Kent farmhouse as two level home (probably built late 1870s). A TWO LEVEL house. It's not a small two floor house either. I tried to find the website that used to have stills but it looks like it's shut down.
I'm confused by the difference between a "two level" and "two story" or "two floor" house. Since Lois comes down the stairs in GGGoH, I've always assumed that the house was two story.