49-unit residential new construction, zoned RM1.

A four-story, 48-unit building is under way at 4272 Parkside Ave in University City, rising from a roughly 12,000-square-foot lot zoned RM1. The project cleared for construction in April 2025 and was originally scoped for 49 units, but design amendments over the past year trimmed that count by one while reworking floor layouts and the façade. The building will include two below-grade levels, a green roof, a shared roof deck, and fire suppression throughout, with the developer taking advantage of green-roof and mixed-income housing bonuses to push density.
The owner of record is 3625 Spring Garden LLC, a name that suggests experience assembling multi-family projects across the broader Powelton corridor. By-right zoning here allows for sizable residential buildings, and this developer made full use of the available incentives to pack more units onto a site that might otherwise have topped out closer to 40. The lot sits along Parkside Avenue's eastern stretch, where older rowhouses and institutional parcels have started giving way to larger-scale infill.
The project joins a modest but steady wave of new construction in the immediate area: the 73-unit complex at 1238–46 Belmont Ave, a pair of eight-unit buildings on North 42nd and North 41st, and a 16-unit development at 4000–18 Parkside Ave. Together, those nearby projects add 105 units within a half-mile radius, signaling quiet but consistent investor appetite for rental housing near Penn and Drexel. The scale here is meaningfully larger than the eight-plexes dotting side streets, suggesting deeper pockets and longer hold strategies.
What's notable is how much underutilized land remains along this stretch of Parkside, particularly where older commercial strips and parking lots still dominate. If the project at 4272 pencils well—and the willingness to amend and iterate on unit counts suggests a hands-on team—it could serve as a template for similar assemblages nearby. The combination of by-right zoning, bonus incentives, and proximity to two major universities makes the corridor ripe for more patient capital willing to navigate multi-year timelines.
📄 View the project's plan drawings (PDF)As this density arrives, InvestPHL is tracking 65 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.
Unlock the 65 nearby opportunities →Major (8+ unit) new-construction projects filed within a half-mile since 2022 — the density gathering around this site.