The total area is 234,400 square meters. Changyuan Yishanyuan low-rent housing covers an area of 149.5 mu, with 22 houses and 3,577 sets, with a total construction area of 234,400 square meters. Room type: 488 sets of two rooms, one living room, one kitchen and one bathroom, each set with an area of about 60 square meters; There are 2208 sets of one bedroom, one living room, one kitchen and one bathroom, each with an area of 45-50 square meters.