Office space for lease, located directly on the Circle in Downtown Indy. Major foot traffic, public transit, visitors, & tourists are constantly on Monument Circle, which has been getting an upgrade as of late. You cannot beat this location! Over the years, the Guaranty Building has retained most of its original design. The curved limestone facade continues to underscore the importance of its location on Monument Circle. This literally couldn't be a better location. This historic building is located directly on Monument Circle in Downtown Indianapolis. Often filled with life on the lunch hour or during one of the many events that happen year-round, the Circle is a must-see for anyone visiting the Circle City. A local architectural firm designed the Guaranty Building in 1922, with construction completed in 1923. Various renovations made throughout. Flexible office spaces available.