17-unit residential new construction, zoned RMX3.
A 17-unit, three-story building is under way at 2639 South 58th Street in Kingsessing, part of a larger Philadelphia Housing Authority project slated for modular construction. The structure cleared to build in early June 2025 and carries the designation Building 3, suggesting it's one piece of a multi-phase development on a sprawling 2.8-acre parcel zoned RMX3. The plan calls for full sprinkler coverage and separate trades coordination for mechanical, electrical, plumbing, and fire-suppression systems.
The PHA's ownership and use of modular construction point to an affordable-housing play, likely aimed at speed and cost efficiency on a site large enough to accommodate additional phases. RMX3 zoning allows this kind of mid-density residential by right, and the three-story envelope fits comfortably within the code without special approvals. The Authority took title earlier this year, moving quickly from acquisition to vertical construction in a matter of months.
What's notable is the absence of any comparable nearby projects—this stretch of Kingsessing hasn't seen the kind of incremental infill or larger-scale activity common in adjacent Cedar Park. The PHA's move here could signal a broader strategy to seed affordable density in underbuilt corners of Southwest Philadelphia, where land costs remain manageable and transit access via the 13 trolley offers a link to University City. The remaining acreage under the same ownership suggests more phases are likely, though no additional buildings have cleared to build yet.
For developers eyeing similar parcels in the area, this project offers a template: mid-rise, modular, and mission-driven, built on land that's been assembled at scale. Whether the PHA's investment sparks adjacent activity or remains an island of new construction will depend on how quickly the surrounding blocks see comparable assemblage and zoning flexibility.
📄 View the project's plan drawings (PDF)As this density arrives, InvestPHL is tracking 104 under-built parcels within a half-mile that a developer could still acquire and build — each carrying a builder's max bid. Addresses and figures are members-only.
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