I've noticed this as well. It's not something that I added. I tried to figure if it was not something from another episode but I don't see anything that looks like this house in season 4.IMDb lists "14255 Kittridge St, Van Nuys, Los Angeles, California, USA" as a filming location for this episode. This seems rather odd to me. I can't find any matching scene. It's also a bit irritating that IMDb doesn't say which place the alleged location was supposed to portray. It's probably as incorrect as their listing of the alleged Colbyco building where they keep listing the wrong one of the two sister buildings. Unfortunately, IMDb has no good standards of fact checking.
GillesDenver, do you happen to have any production documents, indicating a deleted scene that might have been shot there? Thanks.