100 Light Street

100 Light Street
100 Light Street in 2018, then known as Transamerica Tower
Location within Baltimore
Former namesU.S. Fidelity & Guaranty Building
USF&G Tower (1973–mid 1990s)
Legg Mason Building (1997–2009)
Transamerica Tower (2011–2023)
General information
TypeMixed-use
Location100 Light Street
(between Light, East Lombard, South Charles and East Pratt Streets), Baltimore, Maryland
Coordinates39°17′14.2″N 76°36′52.0″W / 39.287278°N 76.614444°W / 39.287278; -76.614444
Construction started1971
CompletedDecember 31, 1973
OwnerCOPT
ManagementCOPT
Height
Roof528 ft (161 m)
Technical details
Floor count40
Floor area529,993 sq ft (49,238.0 m2)
Design and construction
ArchitectVlastimil Koubek & Associates
DeveloperUSF&G
EngineerRobert Kylberg (civil)
Main contractorHuber Hunt & Nichols
Website
100light.com
References
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100 Light Street (colloquially known by its most recent former label, the Transamerica Tower) is a 40-story, 528 ft (161 m) skyscraper completed in 1973 in downtown Baltimore, Maryland. It occupies the city block bounded by South Charles (Maryland Route 139), East Lombard, Light and East Pratt Streets. It is the tallest building in Baltimore and in Maryland.

Originally built as the USF&G Building, it was the headquarters of the United States Fidelity and Guarantee Company (USF&G) in Baltimore, Maryland. USF&G, a specialized insurance company founded in Baltimore in 1896, relocated here from its former complex of three adjoining early 20th Century masonry structures at the southwest corner of South Calvert and Redwood (formerly German Street before World War I) Streets. Later occupied by and known as the Legg Mason Building, the structure faces the former "The Basin" of the Helen Delich Bentley Port of Baltimore on the Northwest Branch of the Patapsco River and the Inner Harbor downtown business waterfront redevelopment.