Case Study: Patterson Associates Ltd

 

In this article, we look at the 'Geyser' building, New Zealand's first new-build, six Green Star rated office building, designed with ARCHICAD by Patterson Associates Ltd.

The Geyser building, located in Auckland's suburb of Parnell, consists of five separate buildings linked together by an interior courtyard. By spreading out the building in this way, the energy efficiency of the building was increased and ultimately helped to earn its six Green Star Rating.

Andrew Patterson (lead project designer, and Director of Patterson Associates Ltd) explains, 'to get that sixth star you need to have an international innovation. We sliced the building around each separate floor area and then ended up with a building of separate parts. This creates light and air around each tenancy.'

The building also features a number of passive and active sustainable systems, making it a leading example for energy-efficient work environments.

Andrew Patterson (lead project designer, and Director of Patterson Associates Ltd) explains, 'to get that sixth star you need to have an international innovation. We sliced the building around each separate floor area and then ended up with a building of separate parts. This creates light and air around each tenancy.'

"[The building] has a fully automated outer skin that opens on hot days, closes in high winds, and on rainy and cooler days."

Key Facts

Location: Parnell, Auckland
Completed: 2012
Designer: Patterson Associates
Details:

  • 5040sqm of office space
  • 24 offices
  • 6 retail/hospitality spaces
  • Automated, stacking carpark for over 160 cars
  • 5 seperate sub-buildings linked via an internal courtyard
  • 5 basement levels
  • 4 above ground levels

Passive Sustainability

Each 'sub building' of the Geyser is wrapped in a 3-dimensional, semi-reflective, white twin-walled façade. This technology creates natural heating and cooling ventilation as thermal currents rise up through the void between the two walls. In winter, each building is warmed as warm air rises through the voids, and works to insulate the building overnight.

In warmer months, the entire outer skin opens electronically to fully ventilate the voids, by way of cross convection currents from the cooler, southern elevations of the buildings.

"From day one this building was to be naturally ventilated," Andrew Mitchell (Director of Patterson Associates Ltd) explains. "The façade had to perform to Auckland's sub-tropic weather patterns. It has a fully automated outer skin that opens on hot days, closes in high winds, and on rainy and cooler days".

"It is critical the building's occupants also have individual passive control of the inner façade and can tap into the twin-skin air at any time. A ceramic frit to the low-iron glass was added to the outer skin for increased shading co-efficiency."

The use of glass across the site also maximises natural daylight penetration into, and exterior views out from, the majority of the spaces.

Read more about Geyser's 'green features' at www.geyserparnell.co.nz/green-features

 

Project Collaboration

To achieve the Geyser's unique design, Pattersons worked with several external teams, with "dozens of people from a huge range of disciplines [being] involved, from structural engineers, electrical engineers, hydraulic service designers, mechanical and façade engineers all working in collaboration."


About Pattersons

Patterson Associates Ltd is recognised for its innovative work in architecture, urban design, interior design and strategic thinking. Projects range from complex urban infrastructure to bespoke residential structures.

Patterson Associates Ltd have been using ARCHICAD for over 15 years.

Luminous Building 2, 22 Garfield St, Parnell, Auckland
www.pattersons.com