Certifications and Affiliations


Passive House Institute US Builder 

SmithWorks Natural Homes is a Passive House Institute US certified builder.  Passive House certified buildings take “green building” to new heights, whereby homes are designed and constructed as a whole system that integrates the home’s natural environment to best take advantage of the sun’s energy, providing greater year-round comfort and efficiency.


The Design Coalition of Madison, WI

SmithWorks Natural Homes has been in an on-going scientific collaboration with Lou Host-Jablonski, Design Coalition, and Doug Piltingsrud PhD -Minnesota Scientist, to refine and perfect clay/straw building techniques.  SmithWorks continues to collaborate with these talented architects, designers and scientists as they research and adapt the clay/straw methods to be on the forefront of this building system.






EcoNest Affiliate Builder 

Don Smith was introduced to the EcoNest Company in 1994 at a green building expo in Montrose Colorado.  Impressed with their building product and design, Don completed their training program and has since then used EcoNest systems in several projects.





Andrew Hadley Architect, PC


Daniel J. Murphy Architect, PC


Manifold Design and Development, Inc


Resource Engineering Group


YesterMorrow Design and Build School