21 W Illinois St 8,000 SF Office Building Chicago, IL 60654 For Sale

21 W. Illinois presents a unique ownership opportunity in the heart of Chicago’s River North, one of the city’s premier mixed-use districts. This four-story, ±8,000-square-foot office building combines the authenticity of brick-and-timber architecture with contemporary finishes and modern amenities. Its design-forward aesthetic includes exposed brick, timber beams, skylights, and private outdoor space, creating a distinctive work environment that supports creativity and collaboration. Currently delivered fully vacant, the property offers full-building control, allowing an owner-user to develop a custom headquarters presence with branding consistency and operational flexibility. Existing improvements include 77 workstations (expandable to 90), nine conference rooms, five kitchens, and multiple private offices across four efficient floors, supporting immediate usability and minimizing upfront capital investment. Located steps from CTA Red Line and with easy access to Brown, Blue, and multiple bus routes, the asset ensures exceptional regional connectivity. The surrounding River North district offers one of Chicago’s densest collections of dining, entertainment, and retail amenities, enhancing recruitment and retention potential for any organization. Zoned DX-7 (Downtown Mixed-Use), the property provides long-term adaptability for future repositioning or alternative use considerations. This sale represents a rare chance to control a boutique building in a vibrant submarket, ideal for creative, tech, or nonprofit organizations seeking an iconic address and long-term stability in a dynamic urban location.