Harlem gradually filtered into the western blocks of Manhattanville (and established Chevra Talmud Torah Anshei Marovi, also known as Old Broadway Synagogue, in 1911). Other prominent 19th-century Manhattanville institutions included the Academy of Convent of the Sacred Heart (later called Manhattanville College) and Manhattan College. In 1904, the opening of the Interborough Rapid Transit Company (IRT)'s new Broadway–Seventh Avenue Line, now part of the on the New York City Subway, galvanized Manhattanville's radical transformation from rural exburb to an extension of the growing city, with the elevated railway providing rapid transit downtown. Cuban, Dominican and Puerto Rican immigrants moved into the area during the 20th century. By the 1970s, the southern part of Manhattanville (up to about 125th Street) was being filled by Columbia and Barnard College students, staff and faculty, as the university continued to expand. West 125th Street has experienced a general economic upturn since the end of the 1990s. Many of the buildings below 125th Street have converted to cooperative ownership as the area experiences continuing gentrification and increasing demand for housing. In collaboration with the community, the city has developed a plan for the 125th Street corridor focusing on reinforcing and building upon its strengths as an arts and cultural corridor. 21st century University expansions Manhattanville is the site of a planned major expansion of Columbia University. The university purchased several square blocks of the neighborhood between 125th and 133rd Streets on the south and north and between Broadway and 12th Avenue on the east side of Broadway from 131 to 134, west of the housing projects. According to the plan, the physical plant of those blocks will be partly demolished to construct a new campus, secondary school and park land, designed by Italian architect Renzo Piano. Local residents feared the impact of the further gentrification from this expansion in addition to the possible, and controversial, use of eminent domain. In 2006, Columbia built a new School of Social Work on Amsterdam Avenue at 122nd Street. In June 2007, the New York City Department of City Planning certified that Columbia's application for the rezoning is complete. This action launched the public review and comment period under the city's Uniform Land Use Review Procedure, which lasted until the end of 2007. In December of the same year, the New York City Council voted to approve Columbia’s proposed rezoning of the site. Renzo Piano Workshop designed three structures