460-unit residential new construction, zoned CMX4.


A 460-unit mixed-use project has been delivered at 1300 Fairmount Ave, a 2.6-acre site in Northern Liberties that sits just south of the neighborhood's traditional core. The development rises three stories—likely a cluster of low-rise buildings rather than a single structure—and includes a ground-floor grocery store fronting Ridge Avenue. The grocery tenant required structural modifications for a freezer slab and loading-dock adjustments, suggesting a full-service operator rather than a convenience format. The site is zoned CMX4, which permits the density by right, no variance needed.
1300 Fairmount LLC acquired the parcel in 2017 and was cleared to build in March 2020, threading the needle just as the pandemic arrived. The grocery component stands out in an area where ground-floor retail has historically skewed toward bars and boutiques; locking in a supermarket this size likely required pre-leasing well before construction wrapped. The choice to keep the buildings low and spread across the lot reflects the zoning envelope and may have simplified phasing or financing compared to a high-rise alternative.
The project lands in the middle of a steady build-out along the Ridge Avenue and North Broad corridors, with 358 units in nearby developments including a 119-unit building at 619-29 N Broad and a 70-unit project at 915-23 N Broad. Most of those are taller, denser infill on tighter lots; 1300 Fairmount's roomier footprint and grocery anchor position it as a different product type within the same wave. The delivery adds meaningful household count to a stretch that has seen consistent but measured growth over the past half-decade.
With this site now built out, attention turns to remaining surface lots and single-story commercial strips along Fairmount and Spring Garden, particularly parcels west of Broad where CMX zoning still permits similar density. The grocery lease here proves the market can support neighborhood-serving retail at scale, which may embolden developers sitting on assemblages nearby to pursue mixed-use rather than residential-only schemes.
📄 View the project's plan drawings (PDF)As this density arrives, InvestPHL is tracking 150 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 150 nearby opportunities →Major (8+ unit) new-construction projects filed within a half-mile since 2022 — the density gathering around this site.