Located in the heart of Denver’s vibrant and historic Lower Downtown (LoDo) district, 1621 18th Street offers a premier commercial opportunity within the iconic ATRIUM building. This multi-story property blends modern functionality with timeless architectural character, providing over 73,000 square feet of flexible office and retail space across three levels. The building features expansive, open floor plates on the lower (22,049 RSF), first (23,549 RSF), and second (27,513 RSF) floors, designed to accommodate a wide range of uses—from creative offices and corporate headquarters to boutique retail or collaborative workspaces. Each level is outfitted with key infrastructure including multiple restrooms, elevator and stair access, and natural light from large windows and atrium-style openings. Positioned on the corner of 18th Street and Wynkoop, the property boasts excellent street visibility and walkability, with immediate access to Union Station, light rail, award-winning restaurants, hotels, and entertainment. Tenants will benefit from the building's central location, historic charm, and proximity to downtown business corridors and transportation hubs. With its blend of flexible interiors, prime location, and modern amenities within a historic context, 1621 18th Street is a standout choice for businesses seeking a dynamic and professional presence in one of Denver’s most desirable neighborhoods.