 Upon him qualifying as a barrister, his father moved the family to a rented house at 119 Emerald Hill Road, next-door to Seow Poh Leng, to reflect Koon-Teck's status.After that he entered Government service.Lim Koon-Teck had been strongly recommended by Sir Song Ong-Siang, who was very fond of him,

Koon-Teck was called to the Singapore Bar and was appointed deputy registrar of the supreme court, Singapore in January 1928.