DCPM does not know. Even if we have seen a 9 x 9 baking dish there in the past, it may have broken, been removed, been damaged, etc. since that time. If you need a specific sized dish, pan, pot, etc., you will want to bring it with you. Or, plan to be flexible to use what is available at the property. We ask all owners to be sure their home is supplied with the proper amount of cookware & dishware for the maximum number of occupants at their home.