344-unit residential new construction, zoned CMX4.
435 N Broad Associates LLC has delivered an 18-story, 344-unit residential tower at 435 N Broad Street, one of the taller projects to arrive in Northern Liberties in recent years. The high-rise, cleared to build in late 2020, includes accessory parking, amenity spaces, and shell commercial storefronts on what was previously a roughly 39,000-square-foot lot. The building was fully sprinklered and equipped with standpipes, with separate fit-out work required before the ground-floor retail spaces could open for occupancy.
The parcel sits in a CMX4 district, where the height and density came by-right without special approvals—a zoning context that allowed the project to move relatively quickly after the 2020 sale. At 18 stories, it stands as one of the few true high-rises in this stretch of Broad, rising well above the mid-rise fabric that typically defines the neighborhood's development pattern. The tower's commercial shell suggests the developer left tenant fit-out flexibility open, a common approach for neighborhood-serving retail in buildings of this scale.
The project lands amid a steady wave of infill nearby: a 119-unit building at 619–29 N Broad, an 81-unit project at 225 N 13th, and a handful of smaller ventures along Spring Garden and Ridge. Altogether, the surrounding half-mile has added nearly 300 units in recent years, reinforcing Northern Liberties' evolution from post-industrial enclave to a denser, transit-adjacent residential quarter. The 435 N Broad tower didn't pioneer that shift, but it does raise the ceiling—literally—on what the zoning permits and what the market will absorb.
For owners sitting on underused CMX4 parcels along this corridor, the takeaway is straightforward: the zoning supports serious density, and the market has shown it can fill towers of this height. The question for similar sites isn't whether high-rise residential pencils, but whether owners are ready to assemble the land, line up financing, and weather the construction cycle that projects like 435 N Broad require. The template is now built and occupied.
📄 View the project's plan drawings (PDF)As this density arrives, InvestPHL is tracking 184 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 184 nearby opportunities →Major (8+ unit) new-construction projects filed within a half-mile since 2022 — the density gathering around this site.