Dexus - Australia’s Leading Property Group Targets Operational Excellence
A decade-long journey towards performance-led sustainability
Dexus is one of Australia’s leading, fully integrated real estate groups, managing a high-quality national property portfolio valued at $57.1 billion. Since 2014, Dexus has partnered with Bueno to support holistic property optimisation, with a focus on achieving NABERS and ESG outcomes while continually improving energy and water benchmarks.
Bueno has worked alongside Dexus to drive sustained improvements in utility performance, operational efficiency, and building optimisation outcomes. This long-standing relationship has ensured that Dexus continues to meet its strategic sustainability goals and remains at the forefront of commercial property performance.
The Challenge – Integrating complex systems across a national portfolio
Deploying Bueno’s analytics platform across 23 Dexus properties—covering 760,000m² and over 160,000 data points—posed a significant technical challenge. Each building had its own mix of Building Management Systems (BMS), Energy Management Systems (EMS), and digital infrastructure, requiring custom integration approaches.
Some systems allowed data access via API, others via CSV exports or direct connections. Metering also varied: some buildings had meters connected through the BMS, others required a cutover of the EMS, and a few lacked digital metering entirely.
On top of this, the HVAC configurations across the portfolio differed considerably—from chilled beam to variable air volume systems, and tri-generation to traditional chiller/boiler setups. Delivering effective optimisation required a detailed, site-specific understanding to develop and implement best-practice recommendations. Bueno successfully met each of these integration and operational challenges.
The Journey Begins – A holistic approach to building performance across every asset
To meet Dexus’ objectives, Bueno implemented its comprehensive Building Optimisation Module. This holistic solution included deployment, platform integration, reporting, Energy Management (EMS), Fault Detection & Diagnostics (FDD), and building optimisation capabilities.
Working closely with Dexus stakeholders—including National Operations Managers, National Sustainability Managers, Technology Managers, and Facilities Teams—Bueno focused on key outcomes:
Reducing energy consumption
Lowering mechanical repair and maintenance costs
Improving NABERS ratings
Extending HVAC system life cycles
Bueno’s Deployments Team utilised a variety of integration methods to connect to Dexus’ building systems, applying best-in-class digital modelling to establish reliable data pipelines. The Bueno platform now enables Dexus to track operational performance across all key parameters, providing clear visibility into risks, issues, and performance trends across the portfolio.
The Results – Demonstrating measurable savings and ongoing optimisation
By leveraging Bueno’s integrated platform, Dexus achieved the following results:
$2.8 million in verified optimisation savings
8.7Kt reduction in carbon emissions
165,000 kL in water savings
9.1 million kWh in electricity reductions
8,300+ closed operational actions
Bueno’s Energy Management Module ensures Dexus continues to meet intensity and ESG targets. Its recommendations around metering design and portfolio visibility have further supported NABERS improvements.
The Fault Detection & Diagnostics Module enables timely identification and resolution of faults, protecting tenant comfort, NABERS outcomes, and equipment longevity. Meanwhile, the Building Optimisation Module—supported by Bueno’s Performance Specialists—pinpoints optimisation opportunities and provides guidance to enhance operations at both site and portfolio levels.
Supporting all of this is Bueno’s data quality and integrity service, including property health reporting, which ensures data remains accurate and actionable.
“Bueno’s solution has empowered our teams to make better, faster decisions.”
Next Steps – Lifting building performance and enabling long-term ESG success
Bueno’s integrated solution has helped position Dexus as one of Australia’s best-performing portfolios in both NABERS and GRESB frameworks. Through a decade-long partnership, Dexus has achieved verified utility savings and strengthened the performance of its commercial assets.
With Bueno’s continued support, Dexus remains confident that its buildings are operating at optimal levels—ready to meet future sustainability, operational, and stakeholder expectations.
For more information or a demonstration, contact Bueno or visit www.buenoanalytics.com.
