the Square

On an underdeveloped block at the heart of downtown, adjacent to a city landmark, Rainier Square will redefine the Seattle skyline and bring new energy to the central business district.

When completed, Rainier Square will include a 58-story, mixed-use high-rise — the city’s second tallest — containing office space and residential units, a 12-story boutique hotel with 220 rooms, and 71,000 square feet of retail as well as below-grade parking for 879 vehicles.

The 1.15-million-square-foot development aims to be an urban catalyst that attracts top-tier businesses and new residents and visitors to the center of downtown, reinvigorating the pedestrian realm and bringing long-term value to the surrounding blocks.


Rainier Square is inspired by and respectful of the adjacent Rainier Tower, whose iconic tapered form — designed, along with the nearby IBM Building, by noted midcentury architect Minoru Yamasaki — has become a Seattle landmark. The new building steps back to preserve views to and from Rainier Tower, and its curved elevations reflect both its architectural forebears and the glacier-carved topography of Seattle itself.

Curtain Wall

Metal “prism” panels are designed to respond to the city’s varying requirements for facade density. Adding or subtracting panels as necessary, and rotating them 180 degrees, creates variation in the facade, which further alters throughout the day based on the position of the sun.

Through this integrated, holistic building systems approach, Rainier Square is targeting a performance level at least 7.5% above the requirements of the Seattle Energy Code, already one of the country’s most stringent.


Architectural Record, “Rainier Square by NBBJ,” May 1, 2021
Puget Sound Business Journal, “Seattle's Second-Tallest Tower, Rainier Square, Reached Its Full Height Fast,” Aug. 15, 2019
Engineering News-Record, “Rainier Square Tower’s Composite Steel Frame Called a Game-Changer,” December 20, 2017
Daily Journal of Commerce, “Wright Runstad plans 2017 start for $600M Rainier Square project,” December 4, 2015
The Wall Street Journal, “J-Shaped Tower Looks to Lure Seattle Tech Firms,” March 17, 2015
Fast Company, "This Tower Looks Like A High Heel,” May 12, 2014