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When it came to reimagining and expanding The Nature Conservancy‘s Oregon headquarters in Southeast Portland, it was important for the project to reflect the environmental organization’s values.

So a pavilion expansion was built with Northern California cross-laminated timber and glulam beams certified by the Forest Stewardship Council and manufactured by D.R. Johnson of Riddle.

Juniper wood cladding and cedar decks came from conservation areas. 鈥淲e worked closely with the folks that were harvesting it,鈥� said Thomas Robinson, LEVER Architecture‘s founding principal.

The Nature Conservancy considered ground-up construction before opting to expand the existing three-story, 12,462-square-foot building with a 2,000-square-foot pavilion. The original building at聽821 S.E. 14th Ave. was constructed in 1979.

鈥淎t a really basic level, one of the most sustainable things you can do is re-use something,鈥� Robinson said.

Now called the Oregon Conservation Center, the project was recently completed. The project team expects the building will achieve a LEED gold rating from the U.S. Green Building Council.

The pavilion will provide space for board meetings, as well as conferences and events with allied organizations.

鈥淭hey’re looking to solve major, long-term issues that impact Oregon, and this space is designed around allowing those types of conversations to happen,鈥� Robinson said.

A second-floor terrace provides visual connection to the Buckman neighborhood. A rooftop photovoltaic system was installed, which will supply about a quarter of the building’s energy needs.

Project^ was the development manager, and Lease Crutcher Lewis served as general contractor. The project team also included聽KPFF Consulting Engineers,听PAE Consulting Engineers, and聽Lando and Associates聽Landscape Architecture.