Bonds issued abroad by China's real estate companies are expected to be more than 3 billion U.S. dollars in June, according to the Economic Information Daily.

The real estate enterprises were faced with tightened domestic financing environment in May, said Fang Ling, analyst of China Real Estate Information Corp (CRIC).

The industry insiders estimated that domestic credit policies for real estate enterprises will remain tightened in the second half of this year, resulting in more issuance of overseas debt.

"To seek breakthroughs in financing channels and effectively reduce leverage level will be the main challenges for real estate companies," Fang added.