Located in the Financial District of Boston, this nine-story, 118,000 square foot Class B office building was built in 1908 and features a unique, gently curving granite façade centered on the famous three-arch "front door" of the Boston Stock Exchange. This historic building was formerly the Corporate Headquarters of the Boston Safe & Deposit Company and has been home to the Boston Stock Exchange since 1997. Founded in 1834, the BSE is the oldest stock exchange in the United States.

The property is located within one block of an MBTA subway entrance, and immediately adjacent to the Downtown Crossing retail district at the edge of Boston's Financial District. One Hundred Franklin is anchored by the Boston Stock Exchange, which occupies three floors on a long term lease. Other tenants include NetVersant, a dba of JCI Communications, several law firms and financial service companies, including Altman Riley Esher LLP, Tucker, Heifetz & Saltzman LLP.