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alley & public artwork at alley24
  • Mixed-Use


Sustainable Renovation

Alley24 is a six-story mixed-use project in the middle of the revitalized Cascade neighborhood across from REI’s flagship store. As one of Seattle’s first mixed-use projects developed under the U.S. Green Building Council’s LEED-certified standards, Alley24 was an early leader in transforming South Lake Union into a thriving urban neighborhood with a sustainable future.

The full-block project includes renovation of the historic Richmond Laundry Building, converted into moderate-rate and affordable apartment units, as well as new construction of office and retail space. The innovative design of the structures, with natural ventilation, central light wells, operable windows, and creative sun shading, allow more individual control of the environment. The result is improved resource efficiency, lower utility costs, and a happier, healthier environment for employees, tenants, and residents.

Sustainability LEED Silver (Comm.) & LEED Certified (Resid.)
Architect NBBJ
Contractor Skanska
Public Artwork Baladeuse by James Harrison

Project Status

Completed 2006
Sold 2015 & 2016

By the Numbers

Office SF
Apartment Homes
Retail SF

Blending Old and New

Alley24 integrates new construction with renovation of the existing Richmond Laundry Building to create a dynamic mix of uses and sustainable elements attractive to high-quality companies.

aerial view of alley24
alley24 alley
alley24 alley
alley24 entrance
alley24 thru block entrance
alley24 facade
rooftop deck at alley24
alley24 conference rooms

See what else makes Alley24 notable

National Sustainable Development of the Year Award, Alley24


“Good Design Is Good Business” Award, Alley24

BusinessWeek & Architectural Record

Global Sustainable Leadership Award for Design & Development Highly Commended Honor, Alley24


The Nationals 2007 Gold Award for Best Brochure, Alley 24

National Association of Home Builders

Night of the Stars Award for Best Mixed-Use Development of the Year, Alley24


Night of the Stars Award for Best Sustainable Development of the Year, Alley24

New Richmond Laundry Bldg
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Alley24 window shades