BEIJING, Aug 20 (Reuters) - China's commercial hub of Shanghai ‌will ease some ‌property policies from Friday, including mortgage, ​housing provident fund and purchase subsidy measures, in a bid to shore up ‌demand, city ⁠authorities said on Thursday.

For second homes bought ⁠outside the city's outer ring expressway, the minimum ​down payment ​for commercial ​mortgages will ‌be cut to no less than 15% from 20% earlier, the authorities said in a notice.

Temporary subsidies of ‌up to 80,000 ​yuan ($12,000) are also ​on ​offer for those ‌selling second-hand homes after ​buying ​new homes outside the expressway, they added.

($1=6.7239 Chinese ​yuan ‌renminbi)

(Reporting by Ethan Wang and ​Ryan Woo; Editing by ​Clarence Fernandez)