The Land Transport Authority (LTA) has awarded two civil contracts for the design and construction of the Cross Island Line Phase 1 (CRL1) stations and tunnels with a combined contract value of HKD861 million (US$110.50 million).

Worth HDK454 million (US$58.31 million), the first contract has been awarded to Hock Lian Seng Infrastructure Pte. Ltd. It covers the design and construction of Serangoon North station and tunnels. The station is wider than usual as there will be three railway tracks instead of two, with the additional track being used to facilitate the withdrawal or parking of trains. 

The second contract for the design and construction of Tavistock station and tunnels has been awarded to Sato Kogyo (S) Pte. Ltd at a contract value of HDK407 million (US$52.28 million). Tavistock station is located along the busy roads of Ang Mo Kio Avenue 3 and is surrounded by residential and commercial properties.