Sydney Water’s new corporate headquarters at One Smith Street, Parramatta.


CASE STUDY – 6 April 2010 –
Sydney Water has bolstered its  environmental credentials with their newly built corporate headquarters at Parramatta earning a 5 Star Green Star – Office As Built v2 rating by the Green Building Council of Australia.

The One Smith Street building, designed by Denton Corker Marshall and owned by Brookfield Multiplex, is a 17 storey, 23,000 square metre office tower located within the Parramatta CBD. Completed in 2009, the building forms an integral element of the $100 million Parramatta Civic Master Plan and will house some 1400 Sydney Water staff from April 2010.

Representing “Australian Excellence”, the 5 Star rating recognises the building’s performance after construction, and matches the 5 Star rating awarded during the design phase on the building’s environmental potential.

Some of its sustainable attributes include:

Construction

During the construction process, “construction materials, wherever possible, were made from renewable resources or had high recycled content”, according to  Tim James of Brookfield Multiplex. These materials “have been produced with minimal greenhouse gas production and ozone depletion”, Mr James added.

Recycling

It is one of the first commercial buildings in NSW with certified black water recycling, providing the building with its own onsite wastewater recycling plant. [Others buildings with blackwater treatment include 1 Bligh Street in the Sydney CBD and an office building in Double Bay.] The black water recycling will provide the building with recycled water suitable for toilet flushing, cooling towers, irrigation and fire system testing, allowing for water savings of a predicted 75 per cent and cuts in greenhouse gas emissions by around 30 per cent when compared to a standard commercial office buildings. To ensure its efficiency, a management system will monitor its water and energy use to minimize leaks and waste.

Design

High-performing glass facades with horizontal custom-designed sun shading devices have been implemented to allow for controlled daylight penetration.

The building utilises chilled beam systems to cool the building and its occupants. The system aims to improve the air quality within the building while its heat absorption from lighting and equipment lessens energy demand and minimises greenhouse gas emissions. This innovative application aims to reduce the risk of “sick building syndrome”, which is often the result of insufficient air circulation, Mr James  said.

Located next to a major public transport interchange, the building contains efficient showers, bike racks and other facilities to encourage staff to commute in healthier and more environmentally sustainable methods.

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