Suzhou has increased the proportion of the down payment needed for the purchase of a second property to 50 percent from 40 percent. The new policy also forbids a mortgage for a third property if a household already owns two. The city has also tightened policies for non-local residents who want to buy property in Suzhou.

Nanjing also has increased the entry requirements for the purchase of a second property. The city raised the down payment ratio for the purchase of a second property to more than 50 percent from 45 percent, if the first house was not yet paid off.

Earlier this month, Hefei also announced strict curbs. Property buyers with unpaid mortgages would be declined for additional housing-related bank loans. Analysts say the recent policy changes show that the government is trying to control financing in the real estate market. That's as borrowing from companies dropped sharply last month.