Penn Alexander is neighborhood public elementary school which Penn helped to build and subsidizes. It is open to students inside a "catchment" defined by the School District of Philadelphia and Philadelphia City Council. The Penn Mortgage program is a grant made by Penn to any of its staff towards the purchase of a home in West Philadelphia or to be used for the improvement of any staff that currently owns a home in West Philadelphia. The university is also an active participant in branding the area as "University City", with its logo showing up next to the name on signs and bridges (not including street signs directing to University City, which are erected by the city, state, and federal governments). For decades, 40th Street was generally considered the "invisible campus boundary" between the residential neighborhoods to the west and the Penn campus to the east. In recent years, the "Penn bubble" is said to have expanded further west. Major redevelopment projects West Philadelphia Corporation As part of the Housing Act of 1949, Congress established the "Slum Clearance and Community Development and Redevelopment" program, commissioning federal funds to "assist local communities in eliminating their slums and blighted areas and in providing the maximum opportunity for the redevelopment of project areas by private enterprise." A few years prior, in 1945, the Redevelopment Authority of the City of Philadelphia (RDA) was formed with the power to acquire and redevelop land through condemnation proceedings. This power to take land reached University City when The West Philadelphia Corporation (WPC) was formed in 1959 by a group of local institutions including Penn. A 1965 map shows the "units" identified for redevelopment. Unit 3 Unit 3, the largest of the identified areas, spanned roughly from 34th to 40th streets and North of Chestnut to Lancaster and Powelton streets, covering most of the Black Bottom neighborhood. By 1965, the WPC had developed a plan to demolish homes in Unit 3 and redevelop the land into a center of private scientific research, an expanded hospital, and a large new high school. This particular development was covered in Penn's student newspaper by a five-part series called "The Quiet War" that ran from January 23 to January 27, 1967. Within four years, the University City Science Center had been established and most of the buildings on Market St. between 34th St. and 40th St. had been demolished. University City High School