Water

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GPT is committed to achieving water neutral operations by 2030* and being resilient to water scarcity and extreme rain events.

Water security is fundamental to sustaining ecosystems, human health and wellbeing, and the economy. Changes to the global water cycle have already impacted urban water supplies, agricultural productivity and natural systems. With shifting rainfall patterns and increasing severity of floods and droughts, water security and resilience is becoming increasingly important in Australia.

* Water neutral operations for GPT owned and GPT managed buildings by 2030, and for externally managed buildings by 2040. 

2020 Performance Highlights

  • We increased our water efficiency with a 62% improvement in water intensity since 2005.

  • The GPT Office portfolio delivered a 4.0 Star Average NABERS Water rating.

  • We set an objective to operate our wholly-owned and GPT-managed buildings on a water neutral basis by 2030. 

  • We continued delivering innovative efficiency and recycled water projects across the portfolio, like Riverside Centre's condensate and rainwater capture system.

GPT Water Intensity 2020
Performance Data
2005
Baseline
2019
Actual
2020
Target
2020
Actual
2021
Target
 
Water
62% water intensity improvement from 2005
 
 
$67.5m and 17.9 gigalitres avoided since 2005
 
Water Intensity
1,561
867
839
596 ✔
842
 L/m2
Total Water
2,733,739
1,756,189
 
1,157,719
 
 kL
  Non-potable water
--
64,476
 
50,420
 
 kL
   Captured / reused
--
9,443
 
3,802
 
 kL
   Onsite recycled
--
3,671
 
3,299
 
 kL
   Offsite recycled
--
52,362
 
43,319
 
 kL
  Potable water
2,733,739
1,690,713
 
1,107,299
 
 kL
 

Find out more about GPT's performance in the 2020 Sustainability Report.

The GPT Environment Data Pack details the full performance of our portfolio, assets and wholesale funds since 2005, including building ratings and attributes. 

Policy and Approach

The GPT Water Policy sets out our commitments and approach to managing water consumption and outflows from our assets, guided by the Integrated Water Cycle Management framework. The Policy applies across our asset management and development activities, as well as to our relationships with tenants, suppliers and partners.

Find out more in the GPT Water Policy

Delivering leading water management outcomes

GPT tracks our water management performance using our ISO14001 certifiable Environmental Management System. 

Savings have been achieved through a range of initiatives informed by diligent metering and monitoring of water use that enables us to make informed decisions on the most effective and efficient means of reducing consumption. Key initiatives include:

Targets, monitoring and metering

  • Targets are set annually for each asset, taking account of improvement plans and performance, and we monitor and report this internally through the year;
  • Management KPIs and incentives are aligned with environmental performance targets;
  • Site teams are provided with training to micro-monitor performance and calibrate systems for optimal efficiency;
  • Metering systems are installed and systems continuously commissioned to ensure systems maintain efficiency;
  • Sub-metering enables allocation of consumption costs on a user-pays basis at an increasing number of sites.

Water-saving devices

  • Low flush toilets are installed in new developments;
  • Waterless or low water urinals installed in all new developments and retrofitted to existing assets;
  • Avoiding the use of cooling towers where a viable alternative is available, for example, at workplace6 there is heat exchange through Sydney Harbour.

Water capture and recycled water

  • Rainwater tanks are installed at many sites for irrigation and other non-potable water use;
  • Precinct supplied recycled water is used where available for suitable purposes, for example, the Quad buildings and 4 Murray Rose use recycled water available through Sydney Olympic Park;
  • Water recycling is introduced where viable, for example at workplace6 the black water treatment plant can be viewed from outside the building and is used as a public educational tool. Excess recycled water is used to irrigate the site’s surrounding parkland.

Managing water discharge

  • Minimising contamination of stormwater run-off through site cleaning procedures;
  • Avoiding sewerage contamination through our House Rules and Fitout Guide requirements, especially relating to fitouts and other building works.

 Tenant guidelines and awareness

  • Retail fitouts have minimum standards on the adoption of water-efficient fittings and fixtures, for example waterless woks in food facilities;
  • Fit Out Guides and Building User Guides assist tenants in the use of low water consumption devices in Office tenancies;
  • GPT actively participates in industry bodies and programs like the Better Buildings Partnership to support and encourage continued innovation;
  • Base building consumption is reported to Office tenants during Building Management Committee meetings.

Find out more about GPT's performance in the 2020 Sustainability Report.