100 Federal Street was completed in 1971, 100 Federal Street is a skyscraper located in the Financial District of Boston, Massachusetts. This building is over 500 feet high, and features 37 floors currently occupied by various, high-end tenants. 100 Federal Street was constructed by Campbell, Aldrich & Nulty. There was an atrium addition constructed by Perkins + Will. The development was completed in February 2018.