Multnomah Building

Not to be confused with the Multnomah Hotel, also located in Portland.

The Multnomah Building is a building in Portland, Oregon that serves as the seat of government and administrative headquarters for Multnomah County, Oregon's most populated county. The building was constructed in 1985 as the US Bank National Association Building, although portions of the site's previous building, a 1920s car dealership, were kept. It was purchased by Multnomah County in 1999.^[1] The building houses the Multnomah County Board of Commissioners and the offices of several county departments.

Multnomah Building
The building's exterior, 2025
Former names	U.S. Bank National Association Building
General information
Type	Government offices
Location	508 SE Hawthorne Blvd. Portland, Oregon, United States
Coordinates	45.512593°N 122.66026°W / 45.512593; -122.66026
Completed	1985
Owner	County of Multnomah
Management	County of Multnomah
Design and construction
Architect(s)	Fletcher Farr Ayotte P.C.

It is located on the corner of Grand Avenue and Hawthorne Boulevard, at the east end of the Hawthorne Bridge.^[2] It features an green roof that was constructed in July 2003.^[3][4]

In 2005, two bas relief panels by Wayne Chabre, titled Connections, were added to the building's west facade. Each panel represent two different parts of the county, one urban, and one rural. The urban panel features abstract versions of Portland's bridges. The rural panel features rural roads and salmon.^[5][6]

The building is the location of Oregon's first same-sex marriages, performed in 2004.^[6]