104 E Main Street 3D The National Building is located on the corner of East Main and Black Street, right in the middle of Downtown Bozeman. This historic Bozeman landmark was built in 1920 for Commercial National Bank, and when complete, US Bank will occupy the first floor and a portion of the second floor. A major renovation is currently underway to bring the exterior to its original look, and the interior is being completely renovated. When completed in summer 2024, The National will be the premier class A office building in Downtown Bozeman. The 4 additional floors of offices will feature a variety of layouts and sizes to fit the needs of many different users with great access to all of the amenities Downtown Bozeman has to offer. The basement will feature a common conference room, tenant fitness center, and tenant storage. Suite 3D is located on the third floor, and will have two private offices and common restrooms.