It was one of the first skyscrapers to be constructed using a then-revolutionary method of erecting a towering central reinforced concrete column first containing elevators and service infrastructure conduits and then followed later by the surrounding scaffolding or steel horizontal beams rising floor by floor, and was a magnet for "sidewalk superintendents" and passing office workers during its construction during the early 70's. Overlooking the new harborfront parkland and expanded bulkheads of former Sam Smith Park with newly rebuilt/repaved Light and Pratt Streets with median strips and landscaped tree-lined sidewalks focused on a brick waterside promenade, soon to be anchored by the historic sailing U.S. Navy warship, with "Constellation Dock" replacing old Municipal Pier 1. Later surrounded by an enormous surrounding plazas rising above a series of steps on the lower south and east sides of the block paved with pink stone panels with terraced garden plots with shrubbery at the edges. A few years later, the construction of Harborplace shopping pavilions with a new waterfall fountain in renamed McKeldin Square, reached by crossing-over the adjacent streets by pedestrian bridges and a central amphitheater facing the water and the ships. Within a decade, the new tower was surrounded by additional glass and aluminum office buildings, hotels, and shopping/commercial high-rises. Construction of the new rising tower challenged for the first time forty years the "tallest tower" ranking held since its 1929 completion of the art deco-styled former Baltimore Trust Company Tower,, then assumed several other names before bearing the title of the Maryland National Bank of the reorganized old B.T.C., by the 1960s soon the largest banking chain in the state. Despite its own changes of owners and names, the former U.S.F. & G. Building remains the tallest building in Baltimore, the tallest building in Maryland, and the tallest building between Philadelphia and Raleigh after the completion of RBC Plaza in 2008. It was also the former home of Legg Mason investment and financial advisors who later relocated to newer quarters on the eastern side of the downtown in Harbor East. USF&G built the 35-story tower, selling it when they were purchased by the St. Paul Companies, which is now a unit of The Travelers Companies. The building was renamed the Transamerica Tower in November 2011 after it was purchased by Transamerica which moved there from its nationally known former headquarters in San Francisco, the iconic landmark Transamerica Pyramid which appears at the top of the building in the company's logo. The building was again put on sale in early 2015.
Occupants and ownership changes
remained in the building until the mid-1990s. The building's primary occupant was asset manager Legg Mason, Inc., until 2009. In February 2007, Legg Mason announced that it would be moving to a new skyscraper in the Harbor East southeastern waterfront development, a move that was completed during summer 2009. As of 2010, the "Legg Mason" sign was no longer at the top of the Pratt and Light Streets building. In 2009 the building became home to the Baltimore branch of RBC Wealth Management. In spring 2011, the building also became home to Baltimore-based law firm Ober|Kaler. The firm occupies 6 floors of the building. In November 2011, after it was purchased by Transamerica, about 800 workers from Transamerica were located in the building. In April 2013, the building added the headquarters and became the home of the Mid-Atlantic law firm and well known in Baltimore, Miles & Stockbridge P.C.
