The Environmental Committee of the Royal Australian Institute of Architects (WA Branch) recommended that the requirements for the precinct be amended to allow the development to take place.

[8] With the plans finalised and approved, the site was purchased in 1989 for $30 million by a joint venture between Barrack Properties (50% share), Kajima Corporation (30%) and Interstruct (20%).

[9] The owners exercised the option in 1991 upon completion of the project, handing joint ownership to the New South Wales Superannuation Board and BT Property Trust.

[11] However, the securing of WAPET (now Chevron Australia) as a tenant in QV1 was regarded as a turning point for the precinct, and helped to establish the west end of the CBD as a resources sector.

[13] Also, following the death of the tower's architect Harry Seidler on 9 March 2006, a powerful light was temporarily installed on the roof of QV1 to shine a beam into the sky as a memorial.

According to architect Harry Seidler, one of the architectural objectives in the design of QV1 was to minimise the impact of the tower when viewed from Parliament House, and this was addressed by offering a narrow profile to that direction.

[17] The tower has a reinforced concrete core, measuring 21.5 metres (71 ft) on each side, which bears lateral forces including wind loading.

[4] The main entrance to QV1 from St Georges Terrace features a set of stone-clad hyperboloid supports that carry the loads of the two perimeter columns which terminate above them on the third floor.