This ordinance amends the Philadelphia Zoning Code by creating a new Mixed-Use Commercial (CMX-3) district. The new district permits a wider range of commercial and residential uses, including ground-floor retail and upper-story residential units, with increased height and density allowances compared to the previous RM-1 district. Specifically, the ordinance rezones the property at 123 Main Street from RM-1 (Residential Mixed-Use - 1) to CMX-3 (Mixed-Use Commercial - 3) to allow for the development of a mixed-use building. The development is expected to include retail space on the ground floor and approximately 50 residential units above. This change aims to promote pedestrian-oriented commercial activity and increase housing supply in the area. The previous RM-1 zoning permitted single-family homes, detached and semi-detached, and some multi-family dwellings, with limited commercial uses. The new CMX-3 zoning encourages higher density and mixed-use development, aligning with the city's goals for walkable neighborhoods and economic revitalization.