The 81 percent is up from 79 percent in an April 2013 survey. The survey also found 15 percent of the homes were demolished and are now empty lots, while 4 percent are only gutted or in a state of derelict. The 2 percent increase in rebuilt homes matches a similar rise of two percent from 2010 to 2013. Among the trends of rebuilding, the survey found a 6 “percent increase from 2009 to 2010 and the 9 percent rise from 2008 to 2009.