55 Corinthian Drive is a 4-level office building located in Albany, Auckland. It has been certified as 5 Star building under Green Star Office Version 3 Design Rating. The ground level has a mixture of office and retail space, and an atrium. The building has great end of trip facilities with 74 bike parks along with lockers, showers and change room areas for staff who choose to cycle.
The building has some key sustainable features such as; Rainwater harvesting, large areas of native planting, EV charging points, low flow water fittings, recycling waste storage provision, high-performance double-glazed façade, low environmental impact materials (applied coatings, timber, etc.).
Rating achieved: Green Star Office V3 Design Rating
Project location: 55 Corinthian Dr, Albany, Auckland, 0632
Building owner: Apec Property Development Ltd
Architect: Ignite
Project manager: Apec Property Development Ltd
Structural/ Civil Engineer: E-Struk Consultants / Riley Consultants
Building services engineer: Thurstons/ECS/HSC
Quantity surveyor: RDT
Main Contractor: Macrennies
GSAP: Peter Bryant, SEEC Ltd
Acoustic Consultant: Hegley Acoustic Consultants
The facade predominately consists of a curtain wall glazing system. Clear double glazed Low-E glazing units are utilised which were selected to achieve high levels of daylight transmission while balancing heat gains/losses.
Reinforced concrete frames support gravity and seismic loads in one direction and precast shear walls support seismic loads in the perpendicular direction.
Cooling: The building includes an air-cooled chiller set (two chillers ~600kW each) which provides chilled water to indoor FCUs. The FCUs include chilled water-cooling coils with 2-port control valves. The CHW pipe distribution serving the indoor FCUs has a primary loop and a variable flow secondary loop to meet the cooling demand as required.
Heating: Indoor FCUs are equipped with electric heating elements for space heating. The indoor FCUs have been specified with variable speed efficient EC motors. The FCU incorporates a supply air turn down control function where the fan typically operates at 70% of Design Duty and only ramps up to full capacity when required.
Ventilation: There are two rooftop AHUs that are zoned (East & West) to supply outdoor air to office FCUs on levels 1 through 3. The ground level office area has two dedicated outdoor air fans that serve the ground east and west zones. Space CO2 sensors control outdoor air ventilation rates to office areas as required.
Lights: LEDs are used throughout the building with automated daylight controls provided to perimeter zones. Infrequently used areas are provided with occupancy sensor control.
Mains Water Supply: Booster pumps deliver water to the building from the council water supply
Rainwater: in-ground rainwater storage is provided and serves both toilets and the irrigation system
DHW: Localised electric hot water cylinders provide DHW to the end of trip cyclist facilities and toilets blocks.
1 point awarded for Marketing Excellence as an Innovation Challenge.
INN-3 Occupant Survey: 1 point awarded for monitoring improvements to employee productivity, wellness and retention, future-proofed assets, higher investment returns and the operational costs of running complex systems through completing a pre-occupancy and post-occupancy survey on building occupants.
INN-3 EV Charging: 1 point awarded for providing over 5% of car parks rapid-charge electric car charging points.
INN-3 Learning Resources: 1 point awarded for including four learning resources that aim at enhancing tenants' and visitors' knowledge of the building's key environmental features like Energy and Water consumption, and change in Ecological value.
INN-3 Contractor Education: 1 point awarded for integrating the contractor education training into the compulsory site induction and the target will be for 90% of contractors and subcontractors to undertake this training. This training provides information on the Green Star Office certification being targeting and why the concept of certification is important, as well as the role people play in achieving it.
INN-3 Stairs: 1 point awarded for having central featured staircase oriented towards the main entrance, runs through to all office levels, and treated as a prominent feature that building occupants must walk past this staircase to get to the lifts, which will promote a form of exercise and therefore create a healthier routine, as well as reduce the energy consumption from the lifts.
You can find out more about 55 Corinthian Drive here.