Testing times for developers as housing glut spreads

China's largest residential real estate developers are struggling to adjust their product offerings to better compete due to the soaring supply of low-cost housing.

"We are mulling over a plan on how to differentiate our commercial products in areas where affordable housing will also be available," said Xiao Jing, head of the marketing department at Sino-Ocean Land, a Beijing-based, Hong Kong-listed property developer.

"Improving the product quality, and supporting equipment and services are the major measures we will take," Xiao added.