21 W Illinois St

Transwestern, as exclusive listing agent, is pleased to present the opportunity to acquire 21 W Illinois Street, a ±8,000-square-foot, four-story brick-and-timber creative office building located in the heart of River North, one of Chicago’s most dynamic and amenity-rich submarkets.

Owner-occupied since its 2010 renovation, the property offers a refined, design-forward aesthetic, combining the sleek functionality of a modern tech workspace with the warmth and finishes of a high-end residential environment. Authentic architectural elements, including exposed brick, timber beams, skylights, and impressive ceiling heights, create a distinctive creative-office identity that stands apart from commodity office product. The building’s efficient footprint and full-floor control enable an owner-user to fully customize operations, branding, and workflow without the constraints of a leased environment.

Situated just steps from the CTA Red Line and surrounded by River North’s premier dining, retail, and hospitality offerings, the property provides a highly walkable, transit-oriented setting that enhances employee experience and retention. Full-building ownership offers a compelling alternative to leasing, allowing users to establish a branded headquarters presence while achieving long-term occupancy control and cost predictability.  And for nonprofit or tax-exempt organizations seeking property tax relief, the added appeal of potentially removing the property from the tax roll.

Zoned DX-7 (Downtown Mixed-Use), the property benefits from a flexible planning framework supporting a range of commercial and mixed-use applications, providing meaningful long-term optionality beyond its current office use.

21 W Illinois Street is ideally suited for an owner-user seeking a headquarters-quality asset with immediate usability, strong branding potential, and long-term strategic control in a premier downtown Chicago location.