63 Wall Street was the headquarters of Brown Brothers & Co., a merchant bank that became Brown Brothers Harriman & Co., a private bank, by merger in 1931. Originally known as 59 Wall Street, it was occupied by BBH until 2003 when it moved to 140 Broadway. BBH established a family of mutual funds in 1983 and named it "59 Wall Street Funds". That fund family was later renamed "BBH Funds" in 2002 when the company made plans to relocate its headquarters.[3]
In 2003 and 2004, the building was converted to rental apartments by Metro Loft Management. The leasing company rebranded the building as The Crest, named for the ornate circular depictions on the outside of the building, and began using the address 63 Wall Street. The ground floor of the building is now retail space, including the United States Post Office for zip code 10005.