"Vacancies have risen in 29 markets in the fourth quarter of 2007, including Las Vegas, Palm Beach, Memphis, Orange County, Calif., and Orlando, according to Reis Inc., a New York real-estate research firm. Ron Witten, a Dallas-based housing analyst, estimates there are 760,000 vacant condos and homes for sale nationwide beyond what the market could normally carry, in addition to a surplus of 350,000 vacant rental properties.
Behind the trend are tens of thousands of unsold condominium units that are being dumped on markets such as South Florida, Las Vegas and Phoenix. While thousands of single-family homes also are coming on the market, renters prefer condos to houses, which typically have more expensive upkeep. "Tenants have to pick up more of the bills," says Artur Ciesielski, a Phoenix real-estate agent....." Vacant Homes Increase