actually that is what I am referring to...Ginny's house is in a preservation district. That is different than the house being listed in a national register of historic places. I have never lived in a preservation district but have friends that do (Clifton area) and they can't even paint their door without asking permission from a committee. Our house (like the Azaleas house) is on the register which basically means we are the only people we have to answer to. kinda weird...
found what I was talking about at
http://www.nps.gov :
Private property owners can do anything they wish with their property, provided that no Federal license, permit, or funding is involved.
Owners have no obligation to open their properties to the public, to restore them, or even to maintain them, if they choose not to do so.