Amazon Blue Shift

Seattle, Washington

  • Services Structural Engineering
  • Market(s) Office
  • Awards Redevelopment/Renovation of the Year, NAIOP, 2018


square feet


ceiling height


year originally built
  • Owner Starwood Capital Group
    Urban Renaissance Group
  • Architect CallisonRTKL
    SAB Architects
  • Contractor Bayley
    HSW Construction
  • Team Seattle, WA
Amazon Blue Shift

Seismic Retrofit and Tenant Improvements for the historic Macy’s Building, formerly the Bon Marche department store. The building opened in 1929 and additional floor levels added in 1953. It received landmark status in 1989. KPFF provided structural design services for both the building owner and the building tenant.

The 300 Pine building renovation includes a seismic retrofit of the original 1929/1953 building, introducing shear walls in discrete locations to provide the department store an unobstructed sales floor area. It also includes the construction of a large roof deck with views of the surrounding city scape. The deck incorporates two clerestory light boxes and skylights, allowing for more natural light to flood the space. The building lobby was relocated and a new entry vestibule and grand staircase was added as part of the new tenant entrance.

The tenant improvement for six floors of office space above the Macy’s store includes the addition of a feature stair connecting the office levels, a shuttle elevator connecting the office the bike storage room, and a free-standing structure enclosing the kitchen/cafeteria. Other elements included structural support of screen wall, benches, and a support frame for a cashier-less convenience store. The floor plates measure around 80,000-sf, a whole city block. It’s the largest floor plate in the city and features ceiling heights of about 15 feet. The floor plans are design so that conference and training rooms are located at the perimeter of the building and office spaces are located in the interior bays.

Future work will include the construction of a high end spa and a clothing retail store at the first floor level. Macy’s department store has since vacated the building.

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