KOIN Centre

Location: Portland, Oregon, USA
Owner: Olympia & York (Oregon), Inc.
Project Value: $61 million
Completion Date: September 1984
Duration: 36 months

The Koin Centre is a multi-use building covering an entire block in the heart of the Central Business district of Portland, Oregon. It consists of 2,137 m²of retail and entertainment space on the first three levels; 30,100m² of office space on floors 4 through 19; and 44 condominiums on the uppermost 11 floors. There are studios and broadcast facilities of the local CBS affiliate, KOIN-TV, located in 6,317m² below grade. The exterior is a combination of natural limestone and brick, trimmed in marble with grey-tinted reflective glass windows. The galvanized steel crown, a featured pyramid top, has stainless steel edges and is colour coated sky blue. Interior finishes include Italian perlato marble floors and walls, anodized aluminum doors, and custom-designed chandeliers. A dramatic 23’6″ ceiling distinguishes the office entrance on Columbia Street.

Architect: Zimmer-Gunsul-Frasca Partnership

Interior Designer: Zimmer-Gunsul-Frasca Partnership

Structural Engineer: kpff Consulting Engineers

Mechanical Engineer: Peterson Associated Engineers Inc.

Electrical Engineer: Peterson Associated Engineers Inc.

Landscape Architect: Mitchell & Nelson Associates Inc.

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