Hempcrete & construction
What hempcrete buildings exist in the U.S.?
Direct answer
Notable U.S. projects include early residential pilots (e.g., Asheville-area hemp houses), growing commercial pilots, and state-led code demonstrations in Minnesota, California, Hawaii, and elsewhere. Europe still has the deepest catalog — France, UK, and Belgium lead — but U.S. photo-ready projects increase each year.
What credible case studies prove
- Assemblies that passed local permitting with engineering support
- Moisture and energy performance in real climates — not just lab coupons
- Crew training time from first pour to productive placement
- Owner comfort and maintenance stories (breathable finishes, humidity seasons)
What they do not prove alone
A single beautiful home does not mean national hurd supply is solved, or that your county AHJ will accept the same detail without review. Treat case studies as detail libraries, not universal code approval.
Hemp.com has covered U.S. code milestones and builds in our news archive — search “hempcrete” for state bill and project coverage.