E4 21 Acres Center for Local Food and Sustainable Living (Sat only)

21 Acres Center for Local Food and Sustainable Living

13701 NE 171st St
Woodinville, WA

Saturday Only, 11am - 5pm


Advanced Building Envelope, Storm Water Infiltration, Solar Power, Water Conservation, Urban Farming, Green Roof, Indoor Air Quality, Energy Efficiency

Visit 21 Acres, a LEED Platinum certified facility with the unique distinction of being fully integrated with 21 Acres' own bio-diverse Organic farm. Experience our holistic, community-based approach to sustainable living. Walk the farm, shop the market, see the commercial kitchen and experience the entire green-built campus. Find new ideas. Have fun. Take away inspiration and resources to use in your own home or business. Sustainable features include: rooftop solar panels, living roof and storm water management system, radiant flooring in combination with ground source heat pumps, composting toilets, onsite wastewater treatment system, insulated concrete form walls, fresh air make-up system, water filtration system, acoustic mitigation panels, organic gardens, pesticide-free grounds and low-impact development.

Guided tours of the building will be available for Green Home Tour visitors on Saturday, April 25th only. You can also take a self-guided tour of the farm and grounds. 21 Acres’ representatives and community partners will be on hand from 11 a.m. to 5 p.m. to demonstrate and showcase a wide range of sustainability-related projects and upgrades you can apply to your home or business.  You will walk away inspired to act! You will be equipped with the tools to make smaller scale changes to your home today, and be connected to resources to support you in larger upgrades. Additionally, the 21 Acres Farm Market will be open with seasonal, Organic and sustainable produce, local farm products and ‘food-to-go’ from our Chef and the kitchen team.

Please join us on Saturday, April 25 to learn how you can engage with 21 Acres: YOUR community resource for sustainable action! See 21acres.org for more information. 
Click here for specific information on our green building features.

Below is a list of resources for the building technologies and products that have been incorporated into the 21 Acres Center to achieve its leadership position within the green building community.

Insulated Concrete Forms

  • Exterior Walls – High Insulation: APEX Block™ICF  http://www.apexblock.com
  • Exterior Walls – High Strength: Arxx ICF Blocks  http://www.arxx.com/

Radiant Flooring

  • http://earthheat.com/

Ground Source Heat Pump System

  • http://earthheat.com/

Living Roof

  • Living roof: http://www.solterrasystems.com/

Rooftop Solar Panels and Energy Technologies

  • 25.2 kW solar photovoltaic roof-mounted system: http://www.sunergysystems.com/
  • C.E.S. Smart Distribution Panels (digital circuit breakers): http://www.c-e-systems.com

Windows, Skylights and Lighting

  • Windows: http://www.pella.com/
  • Skylights: http://www.kalwall.com/
  • Interior Lights: Pacific Lighting Systems: http://www.pacificlightingsystems.com/

Water Conservation and Wastewater Management

  • Nibbler wastewater treatment: http://www.thenibblercompany.com/
  • Glendon Biofilters waster water treatment: http://www.glendon.com/
  • Clivus composting toilets: http://www.clivusmultrum.com/
  • Zurn Aquasense Sensor Faucets: http://www.zurn.com/

Healthy Building Controls, Fixtures, and Materials

  • ATS Automation Ventilation Control System: http://www.atsinc.org/index.html
  • Custom Pure Water Filtration System: http://www.custompure.com/


  • Low Impact Development (LID) Driveway Pavers: http://www.pavingstones.com/aquapave/


  • EV Project electric vehicle charging stations: http://www.theevproject.com/
  • Low Energy Vertical Transportation: Kone Elevators: http://www.kone.com/

About 21 Acres:

Dedicated to the education and advocacy of sustainable living, the 21 Acres Center for Local Food and Sustainable Living seeks to accelerate social change toward more sustainable ways of growing, eating and living to protect the environment while supporting a better quality of life. 21 Acres incorporates a whole systems approach to solving issues around wholesome food availability, small-scale food economies, environmental preservation and green buildings. 21 Acres is a nonprofit agricultural and environmental learning center and living laboratory for green building design, construction, and operations. Visit www.21acres.org for more information.