A new five storey mixed-use building for the previous BNZ tower site at 2 Cathedral Square.
Spark New Zealand will be the primary tenant taking the three large floors of office space, while high-end retail and hospitality spaces activate Hereford Street, Colombo Street, and open onto plaza overlooking Cathedral Square to the north. A restaurant and bar with a large outdoor terrace will occupy the rooftop.
The building services will consist of outdoor air treated by heat recovery systems, chilled beams, and EC fan coil units for smaller meeting rooms.
The lighting will be energy efficient and intelligently designed to dim according to occupancy and daylight requirements.
Project details
Rating awarded: 5 Green Star Office Design V3
Project location: 2 Cathedral Square through to 135-141 Hereford Street, Christchurch
Building owner: Nexus Point Limited
Architect: Sheppard and Rout
Project manager: Cequent Projects
Service engineer: 22 Degrees
Structural engineer: Holmes Group
Quantity surveyor: WT Partnership
Main contractor: N/A
GSAP: Andrei Kozlov - TM Consultants
Acoustic consultant: AES
Key sustainability features
- The building facade is approx. 50% WWR.
- fritted glazing double skin for reductions to solar gain.
- 70% of construction waste by weight to be recycled or reused.
- There are various skylights above the central atrium, as well as the central studio space.
- The HVAC system is chillers with simultaneous heating and cooling.
- Chillers provide DHW.
- Lighting is LED with daylight harvesting and presence detection.
- CO2 control on fresh air demand.
- The ground floor has bicycle storage, showers, etc. to encourage sustainable transport
Innovation points awarded
INN-2 Cyclist Facilities, the provision of double the number of staff bike parks (60 in total) and showers (6 in total) required by the credit criteria, and the number of lockers required by the credit criteria for two points exceeded by 260%. The project also provides 20 more visitor bike parks than the credit criteria requires.