SLI 47+7

SLI 47+7

“We believe this building gives a nod to Seattleites’ environmental values, while also reflecting our region’s reputation for embracing and advancing new innovation and technologies.”

Eric Bell, Portfolio Head of Intellectual Ventures


Component-based Design: Constructing much needed housing smarter, faster, and stronger

A meeting of the minds helped Sustainable Living Innovations (SLI) transform a vision of component-based, high-tech design into a reality. As one of the innovators on SLI’s multi-discipline team, DCI Engineers helped make their multi-family housing product,  a viable plug-and-play construction solution. The collaborators set out to build SLI 47+7, the first residential mid-rise produced by component-based design technology. The outcome is a shorter development timeline to construct vertical housing at a lower cost model, the quick ability to market the property and generate assets, and high quality built environments to provide tenants with optimized living space.

The 13,907-sf apartment building located in the University District on the corner of 47th Avenue and 7th street (47+7), will appeal to tenants wanting quick access to I-5, the University of Washington campus, and downtown Seattle. 24 living units were scaled to a range of sizes: 427-sf to 534-sf.

Project Highlights

  • The component-based design product shaved off 20% of the construction costs for comparable built housing.
  • SLI 47+7 broke ground in August 2014 and topped off in December 2014.
  • SLI 47+7 is a solidly designed and built residential mid-rise expected to last around 60 to 100 years.
  • SLI 47+7’s material selection allowed the vertical housing to be constructed beyond just five stories, the city’s restriction for modularly built housing.
  • Wall and floor systems were bolted together instead of requiring a welding process.


Seattle, Washington
Square Feet: 
Primary Material: 
Sustainable Design

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