Citibank House

Citibank House is an 18-storey office building in St Georges Terrace, Perth, Western Australia. The 68-metre (224 ft) building was opened in 1962 as the T & G Building, and was the tallest building in Perth until 1970. It underwent a major refurbishment in the 1980s which significantly altered the building's external features. The building adopted its current name when Citibank became its flagship tenant.

The site at the corner of St Georges Terrace and Barrack Street was occupied by hostelries from the colony's earliest days, and later housed the Weld Club.

During the Western Australian gold rush in 1897, the Moir Building was constructed on the site. Designed by Talbot Hobbs, the building was one of the most well-known buildings in Perth at the time. It later became the headquarters for the T & G Mutual Life Assurance Society and was renamed to the T & G Chambers. The southern end of the site was also home to the McNeil Chambers.

Growth in T & G's business, coupled with a desire for a modern tower, led to the decision to demolish the iconic chambers. The original T & G Chambers were demolished in early 1960, and excavation for the new tower's foundation began in June 1960.

The high water table of the site necessitated the use of a raft-type foundation. The 1.2-metre-thick (4 ft) foundation was formed by the pour of 740 cubic metres (970 cu yd) of concrete in one continuous pour, which occurred on 25 September 1960. After this, a 53-centimetre (21 in) concrete retaining wall was poured around the basement levels and the steel frame of the building was erected. The floors of the building were formed by attaching permanent galvanised iron formwork to the steel frame, adding steel reinforcement mesh and pouring 10 centimetres (4 in) of concrete on top.

The building was the tallest in Perth upon its completion.

The T & G Building was designed by architects Forbes & Fitzhardinge.

The service tower on the building's west side housed the tower's services, including its four high-speed lifts, a lift lobby, electricity, plumbing, toilets, tea room and two escape stairwells. The containment of the services within the service tower enabled the 390 square metres (4,200 sq ft) of office space on each floor to be contiguous. The service tower rose 8.31 m (27 ft 3 in) above the roof of the main building.