"The HUD report attributes this rise in price to a loss in 'mid-priced' rental units. According to the Times-Picayune, it was not uncommon for families to pay about $300 a month for an apartment before Katrina, but now, 'That's long gone'. If one doesn't think very hard, it seems bizarre that rents should go up in a still disaster-ravaged city-the report estimates there are 72,500 vacant housing units in New Orleans. But this blight translates into scarcity, and scarcity into demand. According to the report, the number of mid-priced rental units in the city went from 66,300 in 2004 all the way down to 19,300 in 2009-less than one-third its previous level. The rental market, among other things, was decimated by the storm."
The report finds that owner-occupied housing has fared better, as has public housing and subsidized housing in maintaining affordable values.