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We've partnered with the Property Council of Australia and City of Perth to develop the Waterwise Office Program to support Perth's commercial office sector reduce their water use. The program provides water use performance indicators so that you can assess whether your building is water efficient and identify opportunities for improvement. Since the introduction of this program in 2013, Perth offices larger than 5000m2 have saved more than 254 billion litres of water!
We have a long term plan in place to secure water for future generations to come supporting our goal to transition Perth to a water sensitive city by 2022. The commercial office sector presents opportunities to be innovative and efficient with water management to deliver liveable, resilient, sustainable and productive communities.
2018 Recognition Winners
Congratulations to all Waterwise Offices recognised at our 2018 Waterwise Business Recognition event!
Minister for Water, Hon Dave Kelly, shared a statement on the successes of waterwise business, developments and offices during 2016-17.
GDI Property Group - 197 St Georges Terrace Perth
Platinum Waterwise Office
Timeframe: 12 months
Waterwise Initiatives: Water saving urinal systems and low restrictors in taps were fitted and we installed sub-meters and an ORP controller. We also execute scheduled preventative maintenance on all fixtures
Learnings: Even the most simple of ideas, such as fitting flow-restrictors to taps, can lead to better outcomes for reduced water consumption.
Our objective is to reduce water consumption in all possible areas which in turn enables us to maintain a well-respected 4.5 star NABERS water rating for our office.
A number of water efficiency initiatives have been implemented to reduce our water usage. We have scheduled preventative maintenance of fixtures, installation of water saving urinal systems and dual flush toilet motion sensors along with the installation of automatic taps and flow restrictors.
The installation of sub-meters on our cooling towers allows us to monitor water use and supports our ongoing water management plan. Through analysing our sub-meter data, we then discovered that the cooling tower bleed line was in need of maintenance and we replaced the time based dosing controller to a more efficient ORP Controller to ensure optimal dosage of chemicals but significantly reduces bleeds and water wastage.
We’ve experienced trending decline in water use thanks to our water management plan and focus on sustainability, in 2016/2017 we achieved a reduction of water use of over 4,600,000 litres. Proactively managing our water efficiency performance naturally reduces our usage costs which in turn reduce the outgoing charges passed onto our tenants.
To reduce the building’s water, energy and waste outputs, we’ll continue to educate and promote water efficiency amongst the buildings occupants through quarterly email broadcasts. To maintain our trend of achieving water reductions and further improving our water efficiency practices, we will continue to investigate initiatives that we can integrate into our buildings mechanical systems.
Albert Facey House - 469 Wellington Street Perth
Timeframe: > 12 months
Budget: The implementation of real-time reporting process for leaks incurred no additional cost as the process was integrated into the routine of our cleaning team.
Waterwise Initiatives: Real-time reporting allows our cleaning team to identify leaking cisterns, urinals or taps. We have also installed water efficient shower heads and engaged a heating ventilation and air conditioning mechanical services contractor to investigate and make repairs to our cooling tower.
The Albert Facey House building management team has undertaken a number of initiatives to improve our office water efficiency outcomes.
After hours self-water audits were introduced to identify any unnecessary water usage throughout the building. Our building management team identified several leaks caused by some cisterns not shutting off. From this evaluation, we implemented a real-time reporting process whereby our cleaning team can identify any leaking cisterns, urinals or taps and promptly report these issues to building management.
Other waterwise initiatives we’ve implemented include the installation of water efficient shower heads in our end of trip facilities and engaging a heating ventilation and air conditioning mechanical services contractor to investigate and make repairs to our cooling tower, which was found to be overflowing on shutdown.
By switching shower heads to water efficient models, it was possible to save approximately 3 litres of water per minute. A water efficient showerhead can save more than 26 litres of water for an average 6-minute shower, which is more than 9,000 litres of water per person in the building per year. With a total of eleven showers in the building this equates to 99,000 litres of water a year per person.
To allow us to identify and understand water use trends at Albert Facey House, we’ll continue to monitor our meter readings on a regular basis enabling ongoing water savings.
Dumas House - 2 Havelock Street Perth
Timeframe: > 12 months
Waterwise Initiatives: In 2016 we upgraded the filling pack and resealed and coated the cooling tower basins.
Budget: The evidence of cooling tower water usage allowed building management to include the cooling tower filling pack replacement into the capital expenses budget approval for the following year.
In 2015, the Department of Finance awarded management of government’s office property portfolio to Jones Lang Le Salle (JLL). Water efficiency was promptly assessed by JLL organising water audits to be conducted on various sites. The audit of Dumas House provided valuable insight into the performance of the cooling towers confirming that approximately 40% of our total site water usage was through the heating ventilation and air conditioning systems’ cooling towers.
The filling pack upgrade was completed in 2016, in addition to re-sealing and coating the cooling tower basins in which significant leaks were identified.
We achieved a 15% reduction in our total site water usage following the cooling tower filling pack upgrade and re-sealing and coating the cooling tower basins to rectify leaks. Our facilities management team is pleased to have earned Gold Waterwise Office recognition in the Waterwise Office Program for the 2016/17 water use. This achievement follows a commendable decrease in our water use benchmark due to water savings derived from our cooling tower upgrade.
We’re evaluating a proposal to implement an Energy and Sustainability Platform Analytics (ESPA) reporting system for Dumas House. This is an online tool which will be very useful to identify trends and to control and monitor changes in water use enabling ongoing water savings.
John Tonkin Water Centre - 629 Newcastle St Leederville
Timeframe: > 12 months
Waterwise Initiatives: We have integrated our cooling tower sub-meters into our existing building management system.
Learnings: We’re conscious of our environmental impact and encourage water efficient behaviours amongst team members.
Our site was established in 1980 and we currently have around 21,000m2 of office space. We’ve experienced an evolution over the last two decades to enable us to keep up with best-practice water efficiency standards in our time-honoured building. We are accredited with a 4 star water rating through the National Australian Built Rating System (NABERS),
Cooling towers have a significant demand on office water supply, using over 40% of total water use on average, so we have integrated our cooling tower sub-meters into our existing building management system to allow us to monitor their real-time performance in harmony with our water treatment services.
Effectively managing and understanding our cooling tower performance has a number of benefits; We ensure the comfort of our team within our building and also prolong the life of our cooling tower infrastructure due to a stable operating environment. Also, by setting operating parameters and monitoring the data we collect from our business management system, we’re able to respond to cooling tower alarms and faults quickly which eliminates unnecessary waste and reduces the amount of down-time in performing system maintenance.
We’re conscious of our environmental impact and encourage water efficient behaviours amongst team members to value every drop in our building, and similarly to consider how to reduce our energy consumption and waste. We’ll continue to work with our staff to encourage growth in our waterwise culture.
The industry baseline was determined through a review completed by HFM Asset Management, on behalf of the Water Corporation and Property Council of Australia, of water use and net lettable area (NLA) data for office buildings with a NLA greater than 5000m2 within the Perth, East Perth and West Perth CBD.
The results of this review are used to determine the waterwise recognition categories for water-cooled and air-cooled buildings. The industry baseline is reviewed every 2 years to ensure best practice water use within waterwise offices. Read the full report here..
This program provides a benchmark for water efficiency in businesses that haven’t already invested in a water rating through the National Australian Built Environment Rating System (NABERS). Case studies show that bench-marking water usage and planning for improvement can reduce operating costs including sewer volume charges and the costs associated with heating, pumping and treating water.
Other key benefits are:
- Recognition as a leader in water efficiency by Water Corporation, Property Council of Australia and City of Perth.
Exclusive access to the waterwise logo to promote your office as waterwise endorsed.
Access to tools such as data loggers and resources (stickers and posters) to encourage waterwise behaviours.
Potential for improved sustainability ratings and reduced operational costs and water use achieved by improved water efficiency.
A competitive edge when promoting your business as a sustainable place to work.
Opportunities to show case your water saving initiatives through case studies on our website.
Invitations to workshops, offers, networking and industry events.
Free online Waterwise Training for the team at your office.
To be eligible to join the program your office must have a net lettable area (NLA) larger than 5000m2 and commit to the following:
- Building owner or appointed representative must accept and submit the program commitment letter.
- Complete a water management plan in the first 3 months following the commitment letter where you will set targets to improve water use.
To be endorsed as a Waterwise Office, the building must demonstrate water use performance in the water management plan that is equal to or above the industry baseline and submit an annual report to provide feedback on your water efficiency progress.
Recognition occurs annually and eligible participants will receive exclusive access to the waterwise logo and a certificate to acknowledge your water use performance and recognition category (silver, gold, platinum).
|| Water cooled benchmark
||NABERS water rating
||Air cooled benchmark
||NABERS water rating
|0.75 – 0.86
||3.0 – 3.5
||0.61 - 0.75
||3.5 – 4.0
|| 0.61 – 0.75
||3.5 – 4.0
|| 0.48 – 0.61
||4.0 – 4.5
||0.48 – 0.61
||4.0 – 4.5
||0.35 – 0.48
|| 4.5 – 5.0
||0.35 – 0.48
||4.5 – 5.0
This information is provided as a guide only.
** To be eligible to receive Gold or Platinum levels of recognition a current NABERS Water Rating is required. This allows us to independently validate the results of high performing buildings before they are recognised as such.
Water use performance
To calculate your water use performance, divide your annual water use (based on reading year – contact us if you need the data) by your NLA. This gives your water use performance in kilolitres per square meter per year.
Tip! Use your submeter data to subtract water use from other facilities, such as food or retail outlets, in your calculations.
These recognition categories have been awarded to the following waterwise offices based on the 2016/17 year.
- 197 St Georges Terrace, Perth (Mill Green Complex)
- 2 Havelock Street, Perth (Dumas House)
- 469 Wellington Street, Perth (Albert Facey House)
- 629 Newcastle Street, Leederville (John Tonkin Water Centre)
- 2 Adelaide Terrace, Perth (Police Headquarters)
- 125 St Georges Terrace, Perth (Brookfield Place)
- 100 St Georges Terrace, proudly owned by ISPT, Perth
- 250 St Georges Terrace, Perth (QV1)
- 27–29 St Georges Terrace, Perth (Council House)
- 40-44 St Georges Terrace, Perth (St Martins Tower)
- 151 Royal Street, East Perth
- 1 Adelaide Terrace, East Perth
- 140 William Street, Perth
- 50 St Georges Tce, Perth (Calibre House)
- 140 St Georges Tce, Perth (AMP Tower)
- 200 St Georges Tce, Perth
- 99 Plain St, East Perth
- 189 Royal St, East Perth
Email us to find out more