Board Thread:Questions and Answers/@comment-83.250.88.218-20131207131424/@comment-7451135-20131207154735

Well, that could be a problem ^^ Did you try to hide a street to see if there's any place behind a building you missed? I absolutely don't know if it works, but maybe you could store (not sell) one/some of the buildings you built and try to build the other two (and store them again)