Further acquisitions followed in the 1900s. In 1990, Bourne bought an iron-front building at 155 and 157 Broadway, which had a frontage of about on Broadway. The purchase of 163 Broadway, a house with a frontage of only , followed in 1902, and in 1903 by the purchase of the five-story 93 Liberty Street, which added a frontage of . By 1905, the Singer Company controlled most of the block along both Broadway and Liberty Street; the original Singer Building was an L-shaped structure extending west and then north from the northwestern corner of Broadway and Liberty Street.