Poly Developments and Holdings' (SHA:600048) contracted sales value slid 17% to 15 billion yuan in August, according to a Friday filing with the Shanghai bourse.
Contracted sales area fell about 17% to 783,300 square meters during the month.
The real estate company added a housing project in Dongguan, China, in August with a value of 3.27 billion yuan and a land area of 67,803 square meters.
Poly Developments' shares fell 3% during morning trading on Friday.