I have a Trammel house that was created during the first week that Trammel was created. On the house sign it has the comment that it's grand Fathered. I have another house that was created during that same week but says that the house is automatically refreshed. Also the house which says grand fathered on the house sign never needs to be refreshed manually, but I believe that is now true on all grand fathered houses. Still curious why one says grand fathered and the others does not, any thoughts or info on this?