84 N Walkup Avenue Elegant historic building in downtown Crystal Lake with a brand new roof (July 2025) and incredible potential for office or mixed-use space. Highlights include soaring ceilings, hardwood floors, original leaded and stained glass windows, multiple private offices/meeting rooms, and a second-floor unit with separate entrance, kitchen, and bath that could be ideal for executive office or rental income. A large walk-up attic offers outstanding expansion possibilities, while outdoor spaces include a wrap-around porch, side yard, and fenced backyard. Located just 1.5 blocks from the Metra train and in the heart of downtown shopping and dining, this property is ideal for professional offices, creative firms, or investors. This property is also listed as a residential property under MLS number 12423955.