District 23 consist of Bukit Batok, Choa Chu Kang, Hillview
Choa Chu Kang
Choa Chu Kang, alternatively spelt as Chua Chu Kang and often abbreviated as CCK, is a planning area and residential town located at the north-westernmost point of the West Region of Singapore. The town shares borders with Sungei Kadut to the north, Tengah to the southwest, Bukit Batok to the southeast, Bukit Panjang to the east and the Western Water Catchment to the west. Choa Chu Kang New Town is separated into two portions by the Kranji Expressway.
Originally a kampung, the area has been rapidly developed under the ambition of the Housing and Development Board, to transform it into a modern township. The town comprises seven subzones, five of which are the most densely populated: Choa Chu Kang Central, Choa Chu Kang North, Yew Tee, Teck Whye, and Keat Hong.