In December 1867, plans & specifications for a railway station & platform at Dalby were forwarded to the Commissioner for Queensland Railways, Mr. A. O. Herbert. The plans were revised & the contract was awarded to builder Mr. George Reading in early January 1868.
The Dalby Railway Station opened on 16 April 1868.
In 1913, the 1868 Dalby Railway Station was replaced with a more substantial building of timber with brick & concrete foundations & a terracotta tiled roof. The 1913 station was built to the east of the original station house, which remained in use during the construction. An additional platform was also constructed to service the newly created lines to Tara, Jandowae, & Bell. The Station Master, his staff, & the refreshment rooms lessee moved into the new station building on 7 June 1914.
The new Dalby Station was designed in similar fashion to the Gympie Railway Station. The designer is attributed as Mr. James St. Clair Ferguson of Queensland Railway’s architectural branch, who also designed the Gympie building. In 1915, the decision was taken to dismantle the old 1868 station house, & to store the materials at Roma for future Railways use.
In 1930, the 1913 station building was destroyed by fire & was replaced later that year by a pre-cast concrete building using the same foundations & floor plan of the original building.