Bensonwood
Fifty years of prefabricated enclosure, with the prices published.
What they're known for
A New Hampshire timber-frame and closed-panel manufacturer shipping high-performance enclosures nationwide, and the originator of Open-Built — a method for keeping a house's services reachable without opening its walls.
Bensonwood has built timber frames and factory-made enclosure systems in Walpole, New Hampshire since 1973. Its Open-Built approach separates structure, skin, services, and interior layers so wiring and plumbing can remain accessible without opening the primary enclosure, while current closed-panel systems use dense-pack insulation and high-performance openings assembled under factory control. The strongest evidence comes from completed projects such as Unity House and the R.W. Kern Center; the enclosure engineering is more defensible than the company’s broader healthy-home marketing claims.
Capabilities
- Panel Fabrication
- Custom Construction
Performance focus
- Passive House
- Healthy Materials
- Thermal Comfort
- Indoor Air
Credentials
Certified Phius Builder (CPHB)
Held by Jay Lepple and Hans Porschitz, corroborated by NH Business Review. Currency not confirmed.
Living Building Challenge, Living Certified
R.W. Kern Center at Hampshire College, certified 2018 under LBC 2.1 per the International Living Future Institute. Bensonwood's scope was the timber frame; materials vetting was handled by a separate consultant.
LEED Platinum
Unity House, 2008, confirmed by Unity College. The first home of a US college president to be certified at this level.
PHI Low Energy Building
The Catskill Project 'Balsam', 2025, per the architect's and developer's records. A distinct and less stringent PHI classification than Passive House Classic. Bensonwood's own page describes the building as a certified Passive House.
Passive House design certification
104–108 Norwell Street, Dorchester, MA — twelve affordable ownership units described in the project press release as design-certified. Design certification precedes and is not equivalent to final certification.
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Sources
- International Living Future Institute — R.W. Kern Center case study
- Unity College — Unity House, LEED Platinum and measured net-zero year
- Green Builder Media — Green Home of the Year, The Catskill Project
- Buck Moorhead Architect — The Catskill Project certification record
- Yale Climate Connections — In these new Catskills homes, no fossil fuels are allowed
- NH Business Review — Phius Certified Builder credentials
- Bensonwood — FAQs
Facts verified July 2026. Compound is an independent editorial directory and is not affiliated with this company unless stated.