_Workzone East at 1 Nash Street in Perth has been awarded Platinum Waterwise Building of the Year!

The 7-storey building has achieved impressive sustainability and water savings.

The building’s owners and manager, Janitha Kaushal, created a 5-year sustainability roadmap. The strategy is to improve performance in energy and water efficiencies, indoor environment quality and waste reduction. Tenant wellbeing and engagement now and in the future was also considered.

The building was the first commercial office to achieve carbon neutrality in WA in 2021. Over 1.1 million litres of water have been saved through several innovative and best practice initiatives. A new energy and water management reporting system, GEMS, was introduced. GEMS sends regular reports tracking current performance against the target NABERS rating. The system includes a 24/7 fault detection notification system. In 9 months, GEMS and 20 submeters identified 100 faults, saving 840,000 litres of water. 

A trial of waterless urinals on one floor estimated a 20% water reduction so the other floors were upgraded. Energy efficient heat pump systems have replaced two gas boilers in the End of Trip Facilities.

Cooling towers accounted for around 40% of the building’s total water usage. New sets of float valves and filtration pump have reduced the amount. The extensive roof area supports a 99 kW Solar PV system capable of generating 150,000 kWh of electricity per annum.