One Main Place

One Main Place is a 20-story high-rise in downtown Portland with a glass facade that mirrors the surrounding cityscape and mountains. The building displays a clean modern form with an open exterior that shapes how the urban area looks and feels.

The building was completed in 1982 as part of a wave of development projects in Portland's downtown core. This expansion helped shape the modern character of the business district during that era.

The building represents the architectural style of Skidmore Owings Merrill, which influenced the evolution of modern commercial structures in American cities.

The building sits near public transportation stops and is easily accessible from the downtown core. The location connects well to major business areas and serves as a hub for people moving through the district.

The structure was built with reinforced concrete supports and diagonal steel bracing to remain stable over active rail lines running beneath it. This engineering solution is visible in the building's distinctive internal framework when you observe the architecture closely.

Inception: 1982

Architects: Skidmore Owings Merrill

Floors above the ground: 20

GPS coordinates: 45.51556,-122.67528

Latest update: December 12, 2025 14:24