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Case Study: The Ark Building, North Sydney

Supplier: Aquacell
13 April, 2011

The Ark building, a 21-level A+ commercial space completed in May 2010, is set to recycle up to three million litres of water annually thanks to its greywater recycling plant.

Located at 40 Mount Street in North Sydney, the Ark represents the first high-rise commercial building to achieve 6 Star Green Star V2 Design rating in NSW. Its rating can be attributed to sustainable features including its greywater recycling plant designed, installed and operated by Aquacell.

The building’s greywater recycling plant treats water from hand basins and showers to the highest standards approved by NSW Health. The water is then re-distributed around the building for use in the cooling tower and for flushing toilets.

The Ark’s greywater recycling plant saves up to 10,000 litres of precious drinking water a day, reducing the volume of greywater unnecessarily being discharged in sewers.

Given the Ark building’s location, space was an important factor in selecting the Aquacell water recycling plant which only takes up the equivalent of two car park spaces.

The Aquacell recycling plant of the Ark is remotely monitored 24 hours, seven days per week by expert Aquacell staff. It uses a dual pipe system, which means the recycled water is transported in a separate pipe system to the drinking water (‘mains water’).

In addition to the Aquacell greywater recycling plant, the Ark’s sustainable features also include a tri-generation power supply, energy efficient lighting combined with maximum use of natural light, charging bays for hybrid/electric cars and cycling facilities.

The 28,500-square metre building, which has also been awarded a 5 Star NABERS energy rating, was designed by architectural firm Rice Daubney and is owned by Investa.