Waterwise Office Program

It’s easy to apply fresh water thinking in your office building when you join this free program.

We've partnered with the Property Council of Australia and City of Perth to develop this free, voluntary program, to support Perth's commercial office sector in reducing water use.

It provides water use performance indicators so that you can assess whether your building is water efficient and identify opportunities for improvement.

Case studies show that benchmarking water usage and planning for improvement can reduce operating costs including sewerage charges and costs associated with heating, pumping and treating water.

The program provides a guide to water efficiency benchmark for businesses that have not invested in a National Australian Built Environment Rating System (NABERS) Water Rating and differentiates between water use in an air-cooled and water-cooled building.

Other key benefits are:

  • WA performance indicators to measure water use against others in your industry
  • recognition by Water Corporation, Property Council of Australia and City of Perth as a leader in efficient water use 
  • access to the Waterwise logo 
  • potential for improved sustainability ratings and reduced operational costs through improved efficiency and water savings 
  • access to tools, such as data loggers, resources and networks that support and enable improvements in water use 
  • competitive edge when promoting your business as a sustainable place to work.

To be eligible to join the program your office building must have a net lettable area (NLA) greater than 5,000m2 and the building owner or owner’s representative must commit to:

  • signing up to the program by submitting a commitment letter
  • completing a water management plan within 3 months of signing up to the program 
  • set targets to improve water use
  • report annually on progress.

To be endorsed as a Waterwise Office the building owner must also demonstrate water use performance is equal to or above the industry baseline:

  • 0.86kL/m2NLA/year for a water-cooled building
  • 0.71kL/m2NLA/year for an air-cooled building.

To find out if you are already eligible for recognition you need to determine if your water use performance is equal to or exceeding the industry baseline shown above.

Calculate your water use performance

You need to know the NLA of the building and annual water consumption, which is found on your water bills.

You can then divide your annual water use by your NLA to give your performance in kilolitres per square metre per year.

Make sure you don’t include water use from other facilities such as food or retail outlets in your calculations.

Recognition occurs annually and if you're eligible, you'll receive a certificate to acknowledge your water use performance when you join the program or your recognition category changes

If your building is endorsed you'll also receive the Waterwise logo for your promotional use.

Recognition categories for water-cooled buildings

  Water-cooled
kL / m2NLA / year
Indicative NABERS Water Rating - Perth*
Stars
Bronze (industry baseline)  0.86  3 to 3.5
Silver  0.75 3.5 to 4
Gold **  0.61 4 to 4.5
Platinum **  0.48 4.5 to 5

Recognition categories for air-cooled buildings

  Air-cooled
kL / m2NLA / year
Indicative NABERS Water Rating - Perth*
Stars
Bronze (industry baseline)  0.71 3.5 to 4
Silver  0.61 4 to 4.5
Gold **  0.48 4.5 to 5
Platinum **  0.35 5 or above

* 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.

The industry baseline water use was determined by a review of water use in 97 office buildings within the Perth and West Perth CBD by HFM Asset Management on our behalf and Property Council of Australia.

The results of this review were also used to determine the recognition categories for water-cooled and air-cooled buildings.

Read the complete report

We'll review water use for this sector annually and the baseline water use will be adjusted in line with industry progress towards best practice water use. 

Platinum Waterwise Office

  • 151 Royal Street, East Perth
  • 197 St Georges Terrace, Perth (Mill Green Complex)

Gold Waterwise Office

  • 100 St Georges Terrace, proudly owned by ISPT, Perth
  • 2 Havelock Street, Perth (Dumas House)
  • 125 St Georges Terrace, Perth (Brookfield)

Silver Waterwise Office

  • 1 Adelaide Terrace, East Perth
  • 629 Newcastle Street, Leederville (John Tonkin Water Centre)
  • 27-29 St Georges Terrace, Perth (Council House)
  • 250 St Georges Terrace, Perth (QV1)
  • 2 Adelaide Terrace, Perth (Police Headquarters)

Bronze Waterwise Office

  • 469 Wellington Street, Perth (Albert Facey House)

The following office tower is participating in the program and working towards Waterwise endorsement:

  • 5 Mill Street, Perth (Mill Green Complex)

More information

Email us at water.efficiency@watercorporation.com.au or call us on (08) 9420 3904.

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