Building, General Contractors

Arkin Tilt Architects
Contact Name: David Arkin
Phone: (510) 528-9830
Service Area: Northern California
Short Description of Services: Arkin Tilt Architects is an award-winning firm specializing in energy and resource efficient design. Our projects embody a marriage of thoughtful design and ecology, creating spaces that are comfortable and lyrical. We pay particular attention to the integration of the built and natural environments—from siting to careful detailing. We have extensive experience with alternative construction systems, including straw-bale and rammed earth, renewable energy systems, greywater, and non-toxic and recycled materials. Our projects include residential and commercial, park buildings, religious facilities, and Eco-Resort planning and design.
Down to Earth Design
Contact Name: Sigi Koko
Phone: 215/540-2694
Service Area: Washington, DC, MD, PA, VA, WV, DE, NJ
Short Description of Services: DESIGNING natural buildings that mimic the hyper-efficiency of nature & TEACHING empowering hands-on workshops.

Sigi Koko is the principal designer at Down to Earth Design, which she founded in 1998 to help her clients manifest their dreams of living in a natural, healthy home. She translates each client’s vision into a unique building design that reflects their personality and lifestyle, while responding to the surrounding landscape and climate. Sigi’s uniquely collaborative design process provides a high level of information and support that encourages her clients to engage fully throughout design and construction. Sigi also teaches natural building workshops that empower her clients to contribute creatively during the construction of their own home.
Endeavour Centre
Contact Name: Chris Magwood
Phone: 705-868-5328
Service Area: Canada & US
Short Description of Services: The Endeavour Centre is a not-for-profit sustainable building school, offering hands-on workshops and full time certificate programs in Sustainable New Construction and Sustainable Renovations.
The Endeavour team also undertake design and design/build projects for clients with high sustainability goals.
Contact Name: Wayne Jeansonne
Phone: 512-804-2050
Service Area: Austin, Hill Country