1 William Street, Brisbane

1 William Street
1 William Street
	1 William Street
	Interactive map of the 1 William Street area
General information
Status	Completed
Type	Government office tower
Architectural style	Modernist
Location	Brisbane CBD, Brisbane, Australia
Coordinates	27°28′30″S 153°01′33″E / 27.47512°S 153.0258°E
Current tenants	Queensland Government
Construction started	4 March 2013
Completed	October 2016
Cost	A$650 million
Client	Cbus
Owner	Cbus Property (50%); ISPT Super Property (50%);
Management	JLL
Height
Antenna spire	267 m (876 ft)
Top floor	179.1 m (588 ft)
Technical details
Floor count	49
Floor area	76,022 m2 (818,290 sq ft)(lettable) 119,977 m2 (1,291,420 sq ft)(gross)
Lifts/elevators	24
Design and construction
Architect	Woods Bagot
Developer	Cbus
Structural engineer	Hyder Consulting
Services engineer	EMF Griffiths
Main contractor	Brookfield Multiplex
Other information
Parking	318 spaces
Website
	1williamstreet.com

1 William Street (colloquially known as the Tower of Power) is a skyscraper in William Street, Brisbane, Queensland, Australia. At 267 metres (876 ft), it is the third-tallest building in the city and 9th-tallest building in Australia as of 2025. The modernist office building is located in the Brisbane CBD, and in close proximity to the neighbouring Parliament House. The building was developed for the Queensland Government as part of its plan for a renewed Government Administrative Precinct and to meet accommodation demands. It was completed in October 2016 with over 5,000 government staff moving in over six weekends.