City Central Tower 1

Setting a new sustainable design standard for Adelaide, the City Central Tower 1 was the biggest single integrated urban redevelopment undertaken in the city.


  • Adelaide, South Australia, Australia


  • Caversham Property Developments Pty Ltd

Project Status

  • Completed 2007


  • Woods Bagot

City Central Tower 1 (CCT1) comprises 31,000 m2 of net lettable area, a two-level secure basement car park, ground floor retail and 21 upper levels of premium office accommodation. Aiming for high sustainability standards, our client sought to achieve a minimum of 5 Star Green Star Rating for the project.


Engaged to deliver Environmentally Sustainable Design (ESD) services, our team ensured the building maximised passive outcomes.

  • Plenty of natural light
  • Reduced glare
  • Reduced water consumption
  • Increased fresh air
  • Reduced the likelihood of ‘sick building syndrome’


CCT1 represents the first use of passive beams in a speculative building without tenants as a driving force. We introduced other sustainable initiatives such as:

  • T5 fluorescent lamps with high frequency dimmable ballasts
  • Carbon monoxide monitoring and control of car park ventilation
  • Reduction of indoor air pollutants through use of volatile organic compound materials
  • Monitoring and measurement of energy and water consumption
  • Recycled materials
  • Use of refrigerants with zero ozone depletion potential


Although this project did not include a water recycling system, we have future-proofed the building for an inevitable site-wide initiative by adding the necessary piping for water re-use.


Effective Project Delivery

As part of our work, we ensured a healthy working environment for staff, reduced the building environmental footprint and energy consumption, while minimising operational running costs and reducing waste by 60% during construction.


CCT1 is the only building in Australia that was awarded a:

  • 5 Star Green Star Office Design v2 Rating
  • 5 Star Green Star Office as Built Rating
  • 5 Star NABER Rrating


Reiterating the business case for green buildings, CCT1 was sold for a record price and was fully leased (again with record highs) within six months of completion.