Opened in 1987, Somerset station was part of the early plans for the original MRT network since 1982.

[1] In January 1984, a joint venture between Borie SAE, Cogefar SPA, Traylor Bros and Ong Chwee Kou Building Contractors secured Contract 106A, the S$39.2 million contract to build Somerset station,[4] since the joint venture was already handling construction of the tunnels adjacent to the station.

[6] Somerset station was opened on 12 December 1987 as part of the extension of the MRT network from Toa Payoh to Outram Park.

[14] There is another mural as part of the heritage-themed Comic Connect Public art display by SMRT.

Managed by Lola Liu and created by Anthong "Antz" Chong, Marianne "Marihadalittlesheep" Tan, Sarah Keydence, and Rene Foo[15] from the art school Visual Arts Centre and art group Playgroup Artists, the mural depicts landmarks in Somerset including the Sian Teck Tng temple, Killiney Road, and the Youth Park.