293B Bukit Batok Street 21: Estate: Bukit Batok, Block: 293B, Street Name: Bukit Batok Street 21, Postal Code: 652293, Tenure: 99 Yrs From 2019, Completion: 2017. Number of Units: 76 units of 4-Room flats, 78 units of 5-Room flats. Indicative Price Range 4-room: $780,000; 5-room: $850,000 - $946,800. Indicative Rental Range 4-room: $3,500 - $3,850.