The west can be further sub-divided into three distinct regions:
Region 1: Holland-Ulu Pandan-Ghim Moh, Buona Vista, Clementi, West Coast
Region 2: Bukit Batok, Choa Chu Kang, Bukit Panjang
Region 3: Tuas, Jurong East+West, Lakeside, Boon Lay
Level of desirability:
Region 1 > Region 2 > Region 3