15-unit residential new construction, zoned CMX2.
A four-story, 15-unit mixed-income project is under way at 3401 Hamilton Street in University City, advancing a modest but material addition to a neighborhood already absorbing hundreds of new units. The building, cleared to build last summer, will include two shell commercial spaces at grade, a common roof deck, and full fire suppression. An amendment approved this past summer eliminated a planned basement electrical vault and added an accessible ramp—a detail that suggests the developer is threading practicalities rather than chasing amenity headlines.
The site sits on a 5,175-square-foot lot in CMX2 zoning, which allows this kind of mid-rise by right and rewards mixed-income housing with density bonuses. 3401 Hamilton LLC picked up the parcel in 2022, and construction has since encountered at least one property-line encroachment requiring a structural amendment late last year. The revised plans also split what was originally a single ground-floor commercial shell into two separate spaces, a move that could invite smaller local tenants rather than a single anchor.
This project lands amid a pronounced wave of infill development within a half-mile radius—238 new units are rising or recently delivered nearby, including a 90-unit building at Fairmount Avenue and a pair of 16-unit projects on Wallace. The cluster signals that University City's northern fringe, long favored for its transit access and proximity to Drexel, continues to attract patient capital willing to build at mid-density scales.
The Hamilton Street parcel itself is unremarkable, but its trajectory—quick sale, amended plans, incremental commercial program—illustrates how smaller operators are working the interstices between larger student-housing plays and the neighborhood's legacy residential stock. Similar underbuilt lots on this stretch remain, and if construction proceeds smoothly here, expect others to follow the same playbook: moderate height, mixed income, and commercial just substantial enough to activate the sidewalk.
📄 View the project's plan drawings (PDF)As this density arrives, InvestPHL is tracking 25 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 25 nearby opportunities →Major (8+ unit) new-construction projects filed within a half-mile since 2022 — the density gathering around this site.