Green Sports Alliance

ShoWare Center & Seattle Thunderbirds - PREMIER MEMBERS of



ShoWare Center is the first sports and entertainment facility in NORTH AMERICA to be designed and constructed to LEED® GOLD Certification standards. LEED® for new construction is third-party certification system designed by the U.S. Green Building Council (USGBC). It is awarded to high performance buildings that have less of an impact on the environment, are healthier for those who work in or visit the building and are more profitable than their conventional counterparts.

LEED® certification is organized into six environmental categories. Here is how the City of Kent and its building partners achieved success in each:


Sustainable Sites
The site design was carefully engineered to ensure that storm water leaving the site is of the same quality and quantity as when the site was a greenfield. The facility’s lighting was sensitively designed to reduce light spill from the site, particularly to the night sky, and minimize the impact on adjacent properties and habitat areas.

Storage for bicycle commuters and showers for employees who bike to work.

Water Efficiency
ShoWare Center’s water efficiency efforts will reduce consumption by more than 40% compared to a conventional facility. That’s 380,000 gallons per year – or the equivalent of more than 3 million 16 oz. cups!

ShoWare Center is equipped with only low-flow water fixtures. The toilets are dual-flush, allowing the user to flush “down” for solids and “up” for liquids. Also, ShoWare Center’s landscaping is native to the region and requires no watering once established.

Energy & Atmosphere

Energy efficient lighting, heating, cooling and ventilation systems with demand-controlled ventilation and ice-making equipment reduce predicted energy use by more than 37% compared to national standards.

Reductions in energy use and the use of ozone-friendly refrigerants reduce CO2 emissions and minimize ozone depletion. And ShoWare Center’s urban location maximizes opportunities for attendees arriving by public transit. All of these measures minimize the building’s impact on climate change.

Materials & Resources
90% of all construction debris at ShoWare Center was recycled thanks to advanced planning and strict attention to detail. The project team used locally harvested and manufactured products to reduce use of natural resources and minimize material transportation. Use of more than 50% Forest Stewardship Council (FSC) wood ensured that forests providing wood to the project are managed sustainably.

Low mercury lamps used throughout the project reduces the impact of this toxic substance. SAVOR, the food & beverage provider is the industry leader in using non-petroleum based packaging and recycling waste. The company also works to provide healthy, locally produced and sustainably harvested food.

Indoor Environmental Quality
ShoWare Center has sensors that deliver fresh air throughout the facility based on the number of people in the building and CO2 driven ventilation, ensuring the air never becomes “stale.” Use of green cleaning products and procedures maintains a healthy indoor environment.

Low volatile organic compound paints and adhesives were used on the building’s interior to minimize indoor contaminants that exacerbate asthma and other respiratory problems. Also, low emission carpets and composite wood products with no added urea formaldehyde are used throughout the building.

Innovation & Design
Strong collaboration between all project team members throughout the design process helped identify green measures, minimize overall project cost and reduce facility operational costs. Extra heat that is rejected from the ice making equipment is reused in the building for other purposes, like warming the ground under the ice rink and melting the ice in the Zamboni pit.

A series of videos starring Cool Bird and friends are played in the arena on the large screens, telling ShoWare Center’s sustainable story in an entertaining and educational way.





ShoWare Center was the first sports and entertainment facility in North America designed and constructed to LEED® GOLD Certification standards. Here are just a few enviable facts:

  • ShoWare Center will save 380,000 gallons of water each year – that’s the equivalent of over 3 million 16 oz. cups with the installation of dual-flush toilets andl low-flow fixtures.
  • Use of efficient Energy efficient lighting, HVAC and other facility operating systems reduce predicted energy use by more than 37% compared to national standards.
  • 90% of all construction debris was recycled.
  • More than 50% of all wood used in the building came from sustainably managed forests.
  • In-building sensors monitor air quality and “fresh air” is delivered when needed.
  • Facility landscaping uses only native plants that require no watering once established.

The 'LEED Certification Mark' is a registered trademark owned by the U.S. Green
Building Council and is used by permission.