100 Federal Street
| Formerly | First National Bank Building |
|---|---|
| Company type | Office building |
| Industry | Commercial real estate |
| Founded | 1971 |
| Headquarters | Boston , United States |
Area served | New England |
| Products | Office space |
| Owner | Boston Properties, Inc. |
100 Federal Street, once known as the First National Bank Building and colloquially referred to as the Pregnant Building, is a prominent high-rise situated in Boston's Financial District. Standing with 37 stories, it holds the position of the 10th tallest structure in Boston. Finished in 1971, it originally functioned as the worldwide headquarters for BankBoston. After the merger between Fleet Financial Group and BankBoston formed FleetBoston Financial, the building became their main office until Bank of America acquired the company in 2004. Currently, it accommodates Bank of America's operations throughout New England.
In March 2012, ownership transferred to Boston Properties, Inc. for $615 million, while Bank of America maintained a long-term lease for office space within the building. Subsequently, the property was officially renamed to its street address, 100 Federal Street.
Design
The building’s unique outward curve near its base led to its nickname, the "Pregnant Building."[1] The architectural design was created by Campbell, Aldrich & Nulty, with structural engineering provided by LeMessurier. This bulging form increases usable floor area on upper levels and improves pedestrian views along the street. The skyscraper is an example of Art Moderne architecture.[1]