[4] The station was moved just over a mile to the north in 1880, to be 76 mi (122 km) from Auckland.

[7] The station changed its name from Pukete to Horotiu on 23 June 1907.

[14] In 1930 Frankton to Horotiu (6 mi 55 ch (10.8 km)) was double tracked, with automatic signalling also extended 34 mi 72 ch (56.2 km) to Mercer.

Horotiu's power interlocking was the first automatic operation of main line points in the country, replacing home and distant signals, Wood's locks[15] (a single key for signal and facing points, named after S P Woods of McKenzie and Holland)[16] and the tablet station.

[15] The 3 mi 54 ch (5.9 km) north to Ngāruawāhia was double track from 5 December 1937.