181 William Street

Click an image to view larger version.


Height: Architectural 123 m / 404 ft
Height: To Tip 123 m / 404 ft
Floors Above Ground 27
Tower GFA 49,200 m² / 529,584 ft²


Official Name 181 William Street
Other Names CBW, 538 Bourke Street
Structure Type Building
Status Completed
Country Australia
City Melbourne
Street Address & Map 181 William Street
Building Function office
Structural Material composite
Energy Label 5 Star Green Star
Construction Start 2006
Completion 2008

Companies Involved

Owner Cbus Property
Design Bates Smart
Structural Engineer
Design Winward Structures
MEP Engineer
Design Norman Disney & Young
Project Manager Project Planning and Management Pty Ltd
Main Contractor Multiplex Construction
Other Consultant
• Lighting Norman Disney & Young

About 181 William Street

181 William Street is a new major corporate presence in the high ground of the west end commercial precinct of Melbourne. The entire project is designed on a holistic basis to integrate the façade with all services systems to achieve high quality environmental performance. During the course of a comprehensive design process, all services systems were integrated to ensure high quality environmental performance, flexibility and long life.

The tower façade is visually arresting in the use of colors in the vision and spandrel glass, creating a balanced geometric pattern that captures a sense of movement across the façade. The russet color pallet was selected to reflect a richer and more distinct corporate presence. The range of seven colors to the spandrel and vision glass has been distributed in an ordered manner that has been inspired by the dot painting technique of Australian indigenous art. The white columns are metal clad with the lower sections expressed in polished stone. The elevated podium is clad in zinc with expressed joints and flush glazing to match. The north and south inset façades are in clear flush glazing.

The tower is designed to achieve maximum natural light, views and workplace flexibility. The project has achieved a certification rating of Five Green Stars and 4.5 Star ABGR. These rating systems are administered by the Green Building Council of Australia and subject to rigorous audit and monitoring. These assessments cover all elements of sustainable performance, including the consideration of embodied energy, recycled construction materials, indoor air quality and VOC analysis, and ongoing environmental performance. This is equivalent to a LEED Gold rating.

CTBUH Initiatives

Warm Weather Spaces Walking Tours 2015
17 Sep 2015 – Tour Report

To submit more information or donate images for this project, please use our submission portal.