Are you saying your building is ugly and should have been replaced? The older buildings probably haven't been replaced because they're attractive enough and wo

Are you saying your building is ugly and should have been replaced? The older buildings probably haven't been replaced because they're attractive enough and work for the residents. The post-war buildings probably haven't been replaced because, although less attractive, it isn't economical to do so. There may also be municipal restrictions preventing them from being torn down and replaced, restrictions that probably wouldn't have existed pre-20th century. If one were going to tear down such buildings and replace them it would probably be best for the replacement to be significantly taller, in order to make more money. But that might not be allowed.