Sorry for using a burner, but I think this is definite now.

See here for physical size reference of CPP, Bucks and Little Red fox, which are all side by side roughly the same size with the exception of CPP which has an area on the back about the same size as the front unit. See http://sli.mg/vh11Cd (with a size reference in the bottom right)

For reference here is info for the building next door Little Red Fox is 1530 square foot http://archive.is/ehWqp

CPP is listed as being 3925 square feet see http://archive.is/9gzzh but have a look at the map view of this one story building. Back of the envelope math says that should run up to about 3000 square foot - this is nearly a full 1k square foot short of what is visible.

Now have a look at Bucks this is where it gets interesting http://archive.is/zRk7w a whopping 4.5k square foot for a building that looks the same size as Little Red Fox.

Another point that really needs some weight but is speculative is that CPP building is much older than bucks, being built in 1932 during prohibition. Tunnels were commonly used to transport liquor during that time and he salvaged the old liquor store sign. more info at https://voat.co/v/pizzagate/1456194