4 National Circuit

The construction of 4 National Circuit was the final stage of a 10-year program by owners and developers ISPT to develop the National Circuit Precinct as a workplace of distinction.

In targeting a leading sustainability rating for the facility, the builders Lendlease Building engaged A.G. Coombs Advisory as Independent Commissioning Agent to ensure the successful delivery of this critical outcome.

The role included providing design review services, developed commissioning plans, supported commissioning management, and verified the building engineering services for project completion, which included 12 months of building tuning, to assist with achieving the building’s 5 Star Green Star As Built and 5 Star NABERS Energy targets.

The stringent staged handover schedule and the tenant’s high level security requirements added to the complexity of delivering and assuring the building’s technical sustainability features, which included:

  • A gas-fired co-generation system providing electricity and heat recovery, reducing greenhouse gas emissions and reliance on grid electricity.
  • An energy efficient lighting control system for tenants and base building.
  • Water efficiency measures including several water recycling systems.
  • Sophisticated control systems for air quality and water services creating a more comfortable work environment to support higher productivity levels while making significant savings in energy and water costs.
Reaching project completion and achieving our sustainability targets for 4 National Circuit were two key goals for Lendlease, Building, as project manager, and ISPT as the building owner. We sought a proven, reliable Independent Commissioning Agent to collaborate with and guide the team and provide leading advice on fine tuning and integrating systems for optimal operational performance. A.G. Coombs Advisory’s strong track record as an ICA made our decision easy, and we are not at all disappointed with the result. The building continues to perform extremely well.

Tim Tooher, Project Services Manager, Lendlease Building

Project Overview

Project Name: 4 National Circuit

Location: ACT

Client: ISPT & Lendlease Building

Year Completed: 2013

Project Type

Building Services Upgrade


  • Staged project completion requirements met, with the Green Star ICA role instrumental in this process.
  • The Green Star ICA role was key to achieving the building’s 5 Star Green Star and 5 Star NABERS Energy outcomes.


  • Inaugural Innovation Award presented to ISPT Pty Ltd at the 2015 Property Council of Australia/Rider Levett Bucknall Innovation & Excellence Awards.

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