Hi! I really liked your HoodChecker and thought that not only Neighborhoods gets corrupted. Also lots do. I think there is many out there (and me of course) that would like to have a tool that can check if a lot is corrupted.

Yes, a Lot Checker would definitely be helpful, especially if it could be run before the lot had been added to a neighborhood. This implies that it should work on Sims2Packs or on lots in the Lot Bin.