Amending an ordinance approved September 2, 1964, as amended, which approved the amended redevelopment proposal, the amended urban renewal plan, and amended relocation plan of the Redevelopment Authority of the City of Philadelphia for the redevelopment of Whitman Urban Renewal Area, by approving the eighth amendment of the redevelopment proposal and of the urban renewal plan which provide, inter alia, for certain changes, namely: acquisition of approximately eight additional properties for future redevelopment; certain land use changes from commercial to residential in the vicinity of Fifth s — Open Common Ground