China has a major over-supply issue thanks to property developers who had rushed into the market to build homes, which have been a popular investment as prices seemed bound to keep rising. But now, as Vanke recently warned, things are changing and "the golden era" of China's property market are over. The vacancy rate of sold residential homes in urban areas reached 22.4% in 2013 and as new home prices are slashed to move product, a 30% drop would leave 11.2% of Chinese homes underwater on their mortgages...

52.5 million homes stand vacant in China... for context, there are 112 million total occupied housing units in the US and 18.7 million vacant...

And home price growth is decelerating rapidly...

More than one in five homes in China's urban areas is vacant, and a current housing-price correction is putting additional pressure on the owners of such empty properties, according to a nationwide survey by researchers from China's Southwestern University of Finance and Economics.

 The vacancy rate of sold residential homes in urban areas reached 22.4% in 2013, or 49 million homes, up from 20.6% in 2011, according to the Survey and Research Center for China Household Finance, which conducted the analysis.