
Projects
Sustainable
GCS-SIGAL delivers sustainable projects, leveraging innovative design, green building practices, and energy-efficient solutions to create lasting, environmentally responsible spaces.

Dorothy I. Height Elementary School
Washington, DC

Arboretum Community Center
Washington, DC

MarginEdge
Arlington, VA

John Eaton Elementary School
Washington, DC

Residences at St. Elizabeths East
Washington, DC

Stead Park Recreation Center
Washington, DC

Chapman Stables
Washington, DC

Northeastern University · Arlington Campus
Arlington, VA

Duke Ellington School of the Arts
Washington, DC