Here’s an example of a structure that was “condemned” by the City in 1998 but it was saved and restored in 2010 : http://www.recordonline.com/apps/pbcs.dll/article?AID=%2F20001003%2FNEWS%2F310039986&fb_source=message
Here’s an explaination of the loss Newburgh suffered during Urban Renewal : http://newburghrestoration.com/2012/10/statistics-of-newburgh-waterfront-destruction/