 The station was built by the Llanelly Railway, who reached the town from the Llanelli direction in January 1857.An extension on to Llandovery was constructed by the subsidiary Vale of Towy Railway (opening in 1858), whilst the branch line to Carmarthen followed in 1864/5 and a direct line to along the Gower Peninsula in 1866/7.The following year saw the Central Wales Extension Railway reach Llandovery, putting Llandeilo on a through route to but also giving the London and North Western Railway access to the Llanelly company's territory and lines through a new joint lease of the VoTR.