I do have a design/layout for the Mansion complex worked out, with names and histories for all the basic structures you see here, but I'm never going to be 100% happy with all the fiddly little details. So, yes, there are some changes from the last time the Mansion actually appeared "on screen". (This is also why I so seldom draw the Mansion in the actual strip.) If these breaches in continuity simply can't be endured, as always, a wizard did it.