The Singer Building was at the northwest corner of Liberty Street and Broadway in the Financial District of Lower Manhattan, abutting the City Investing Building to the north. The lot was nearly rectangular, though slightly skewed due to the layout of the street grid, and measured on Broadway by on Liberty Street. The structure, as completed in 1908, was composed of the original Singer Building, the Bourne Building, an annex next to both the Singer and Bourne buildings, and the tower. All of these structures were designed by Ernest Flagg under commission to Frederick Bourne, leader of the Singer Sewing Machine Company. Flagg, an early proponent of the Beaux-Arts architectural style, had designed the company's previous headquarters at 561 Broadway. The previous building, which remains extant, was also referred to the "Little Singer Building" after the completion of the structure at Liberty Street and Broadway.