Mason Bros building case study

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About the Mason Bros. building, 139 Pakenham Street, Auckland

With the redevelopment of the Mason Bros building, which had in more recent times housed manufacturing business Southern Spars, long-term owner Precinct Properties aspired to a high-quality development that supported Wynyard Quarter’s Sustainability Standards. It also sought and has achieved a building which provides long term operational efficiency, durability, flexibility and enhanced amenity for tenants which include consultancy and design practice Warren and Mahoney and engineering consultancy firm Mott MacDonald (both of which played key roles in its development), and innovation accelerator GridAKL. The building is valued at over $42-million and the renovation was completed in 2016.Paul Singleton, Precinct Properties National Operations Manager, says the developer invests in green buildings for multiple reasons.

It starts with environmental, social and governance responsibilities, our own sustainability goals and also demand for these types of developments.Paul Singleton, Precinct

Paul Singleton, Operations ManagerPrecinct Properties, Auckland

Key sustainable features of the Mason Bros building include;

  • CO2 control of outdoor air rates for energy efficiency and indoor air quality control  
  • Variable speed EC fan coil units with zone and supply air temperature reset   
  • Level-2 VAV diffusers with integrated temperature sensing and control 
  • Variable speed fans and pumps   
  • 100% LED lighting, daylight harvesting and zone-based automatic light switching   
  • 4-pipe heating and cooling via heat pump (air cooled and reversible for heating and cooling) 
  • Heat pump domestic hot water
  • Embedded radiant heating and cooling in the atrium floor slab    
  • Extensive metering of energy and water use, enabling optimisation     
  • Elimination of cooling towers whilst still exceeding operational energy objectives    Rainwater harvesting into a central 25,000 litre tank   
  • ‘End of trip’ facilities including five showers, 38 lockers, 46 secure and 14 visitor bicycle parks   
  • Re-use of heavy duty building facilities such as fire rated doors and hydrants