Portland, Oregon | Design: PATH Architecture, Inc. | Construction: Kaiser Group, Inc.

Carbon12 is the tallest mass timber and cross-laminated timber (CLT) building in the United States. Setting a precedent in environmental stewardship, Carbon12’s design utilizes the most sophisticated type of timber construction, resulting in one of the most environmentally sustainable residential projects in the world.

Engineered with a buckling-restrained braced frame core that is surrounded by a timber and CLT structure, Carbon12 is an 85’ tall, eight-story, mixed-used building with 14 residential units, lobby, and ground-floor retail along the NE Williams Corridor in North Portland.

The decision to build Carbon12 out of timber and CLT, as opposed to concrete, was borne of a desire to make an impact that improves the environment and is rooted in the use of regional renewable materials.  Its pioneering approach to timber construction is a new frontier in building in the United States, and will serve as a catalyst and precedent for timber construction across the nation.

Stronger than steel, lighter than concrete, and faster to assemble than any other structural system, Carbon12’s CLT wood structure locks away atmospheric CO2 for the life of the building.

Carbon12 also incorporates other high-tech features such as an underground mechanical parking system, and solar-ready roof. The building’s slender footprint offers maximum potential for the ground-floor retail uses to spill out onto the site, and for the project to create a true sense of place in the neighborhood.