487B Choa Chu Kang Avenue 5: Estate: Choa Chu Kang, Block: 487B, Postal Code: 682487, Tenure: 99 Yrs From 2016, Completion: 2015. Units: 84 (4-room), 28 (5-room). Prices: 4-room: $585,888 - $595,000 / $590,444, 5-room: $675,000. Rentals: 4-room: $3,100 - $3,500 / $3,367.