Spark Christchurch

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.