For more than 25 years, Lakeside School has trusted Seneca Group to provide planning, design, and construction services for its real estate master planning and development management. Our relationship began in 2000 when we were asked to provide construction management services on the Middle School. Since then, our relationship continues to thrive and expand.
- 2000 – New Middle School
- 2008 – Athletic Fields Update
- 2011 – Bliss Hall Renovation
- 2011 – Moore Hall Seismic Upgrades
- 2011 – Allen-Gates Hall Expansion & Remodel
- 2011 – Ayrault Shellhouse on Lake Washington
- 2013 – Athletic Facilities Master Plan
- 2014 – Paul G. Allen Athletics Center
- 2016 – Master Planning
- 2016 – Performing Arts Concept Study
- 2018 – Middle School Renovation
- 2025 – Master Planning
- 2026 – T.J. Vassar ’68 Center for the Sciences and Humanities
- est. 2027 – Allen-Gates Renovation (Engineering & Innovation Center)