The Gisborne Railway Station was built by local Gisborne firm Mathieson and Baldock, and it was designed by George Troup, a draughtsman and engineer with, and later head of the architectural branch of New Zealand Railways. Troup designed a series of standard plans, and the Gisborne Railway Station is from Class B which, as J.B. Mahoney writes,
'offered seven choices ranging from an unattended station 44 ft long and containing lobby and ladies' waiting room, to a station 103 ft long and containing lobby and ladies' waiting room, tickets and parcels office, stationmaster, porters and lamp room.'
The station is a long timber frame one storey building, with a basically rectangular floor plan. The exterior walls are rusticated timber and the building has a corrugated iron gable roof. A concrete platform runs the length of the station's south side, extending beyond each end. The interior is divided into nine rooms connected by internal doors, including a bathroom at the west end. Many early interior features are intact, including moulded baseboards, dado, cornices and window-frames, with vertical tongue-and-groove lining below the dado and horizontal tongue-and-groove lining above it.
In June 1902 the Poverty Bay Herald featured a long report on the festivities associated with the opening of Gisborne's railway station. It is a touching example of optimism and a demonstration of the excitement that came with the railways. 'Gisborne weather favoured the event and the town, which has been splendidly decorated with festoons of flags along the streets, and with splendid arches, looked gayer than it ever had before.' The first train out of the station was greeted by ‘the cheers from several thousand throats, the waving of flags by happy children aboard the cars, and the loud explosion of detonators placed on the line'.
By 1939, with the rail link to Napier close to completion, it was decided that the old station building, yard and sidings needed to be completely reorganised and expanded. The station building was moved some distance directly back, expanded and internally rearranged. The work took over a year and left Gisborne with an entirely different station layout, although externally the station was only extended a few metres. There were further internal alterations to the station building in 1944 when a new stationmaster's office was installed. Further shelter was provided in 1950 when the verandah at the redundant Te Karaka station (opened 1905) was shifted to Gisborne and added onto the existing verandah. There were further alterations to the booking office in 1964. The main interior changes in recent years are the remodelled fireplace, and the subdivision of the baggage room by the construction of an internal wall in 1992. The station now houses boutique retail outlets.
The Gisborne Railway Station is architecturally significant as an example of the Class B railway station designed by George Troup for New Zealand Railways. While Class B stations do not have the architectural distinction of Troup's individually designed stations, such as those at Dunedin or Blenheim, and were not particularly unique when constructed, they have become important as New Zealand's railway heritage has been gradually demolished. Despite alterations during its lifetime, the Gisborne Railway Station retains a consistent design and has a number of original features. The station is also historically significant as part of the Tairawhiti region's railway network, and a reminder of how important railway connections (between towns in the region, and this region and other places) have been in the economic and social development of Tairawhiti. It also incorporates the verandah of the station at Te Karaka (now demolished). And as a focus of community aspirations, a hub of Gisborne social life in the twentieth century, and a place of thousands of goodbyes and welcomes, Gisborne Railway Station has both social significance and a strong relationship to the community's past.


