310 Main St, Lemont, IL offers flexible second-floor office space in the heart of Downtown Lemont inside the former Lemont National Bank building. Now under new ownership and available for the first time in a long time, the full second floor consists of 2,891 rentable square feet and may be leased as one floor, benefiting from two means of egress, or divided into individual executive office suites. Available suite sizes include Suite A: 716rsf, Suite B: 866rsf, Suite C: 647rsf, and Suite D: 662rsf. Tenants may lease one suite or multiple suites depending on their space needs. Each suite includes private windowed offices and open workspace, with Suites A, C, and D each featuring two private offices, and Suite B featuring three private offices. Executive suites are offered on a full-service gross lease basis, including utilities. The building includes common area restrooms, an atrium, and convenient on-site parking owned by the landlord for tenants and their customers — a rare advantage in Downtown Lemont. This is a second-floor space ideal for professional office users seeking flexible sizing, downtown visibility, and convenient parking in one of Lemont’s most recognizable downtown buildings.