At ILGSE, we pride ourselves on a solid reputation for structural engineering design, consultation, personal attention and responsiveness, and have built our business on work from repeat clients. Considered one of the preeminent leaders of historic preservation in Seattle, our hands-on practical knowledge of the behavior of existing buildings has been learned from decades of experience.  While historic restoration is an intrinsic niche for our firm, we also have long-standing relationships with clients at the top of their field in affordable housing as we proudly support their efforts to provide safe, innovative, and supported services that allow new beginnings for people in stable housing.

ILGSE provides structural engineering services for a wide variety of structures. For all of our projects, our company offers innovative, practical, and cost-effective consultation from the initial schematic designs through the completion of the construction process.
The nuanced approach we have developed through years of experience with both new and existing buildings allows us to bring a thoughtful approach and detailing to make buildings that serve both form and function.  Our long-standing relationships with both contractors and design teams throughout the region has resulted in structural designs that are both creative and efficient, but always with an eye towards constructability.

I.L. Gross Structural Engineers LLC

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