Manhattan Apartment Sales Plunge 20%

There are a lot more apartments available for purchase these days in Manhattan. And fewer people are buying.

Sales of previously owned condominiums and co-ops fell 20 percent in the third quarter from a year earlier as potential buyers grew cautious amid more choices, according to a report Tuesday from appraiser Miller Samuel Inc. and brokerage Douglas Elliman Real Estate. There were 5,290 resale apartments on the market at the end of September, 53 percent more than the number available in late 2013, the lowest point for listings.