Member Company: LafargeHolcim
Category Selection: Green Design
The new Zurich North America Headquarters was designed to reflect the company’s global reach and world-class stature. The architectural character of the 783,800-square-foot complex reinforces an image of reliability and success through its bold simplicity in form, a timeless material palette, and its commitment to sustainability.
Various slag mixes were used in both the Headquarters building and parking structure. The mix designs had Slag replacement percentages from 18.5% to 24.4%; Overall, slag comprised about 23% of the cementitious content in the 32,925 yards of concrete supplied by Prairie.
Slag was credited for its green attributes (LEED credits) including recycled content and locally sourced materials. Additionally, the lighter color/lower albedo of slag concrete mixtures benefits lighting requirements (e.g. parking structure), reduces heat absorption, and has aesthetic architectural benefits. These benefits, along with higher efficiency systems, have allowed Zurich to reduce its energy consumption by more than 30% compared to the previous location.
The LEED platinum rating by the USGBC is the highest level of certification attainable in the LEED rating system. Features include:
- Efforts to reduce energy and water use
- Recycling and reduction of waste during construction process; efforts to utilize locally-sourced building materials
- Features listed in the employee paragraph below
Employees participated in the crowdsourcing of ideas to create a work environment that allows them to best serve their customers. Zurich designated 180 employees to be Change Champions and advocate for the positive transition to the new building. The result is a corporate campus that enhances communication, collaboration and wellness. Because of this process, employees indicated a preference for an environment filled with natural light, collaborative spaces and sit/stand desks for everyone. The headquarter campus also features:
- Curtain wall system designed to maximize natural light
- System to provide high-quality indoor air
- Access to public transportation and accommodations for electric and low-emitting vehicles
- Incorporation of multiple “green” roof space, totaling more than one acre
- Landscaping with 637 trees and more than 13 acres of native savannah plantings, walking paths and water features, rainwater harvest and re-use
Project Team: (Owner: Zurich North America, Jennifer Schneider) (Architect: Goettsch Partners, Matthew C. Larson) (Engineer/Contractor/Design Build Team: Clayco, Bob Clark) (Concrete: Prairie Material, Gary Hall) (Slag Cement: LafargeHolcim, Andrea Breen)