19-unit residential new construction, zoned RSA5.
A 19-unit residential building is set to rise at 3725 Mount Vernon St in University City & Powelton, the kind of by-right infill quietly reshaping the block. It was cleared to build in Oct 26, 2026.
The 7,141 sq ft site is zoned RSA5, which supports a building on the order of 3 stories by right. Records show the parcel last traded in 2019 for $350K. The plans call for for the erection of a three (3) story attached structure with roof deck as per approved plans. for use as nineteen (19) dwelling units. structure to be fully sprinklered in accordance with nfpa 13r minimum. **separate permits required for mep and fire suppression work.** **2018 ibc**.
The owner of record is 42nd Market Associates LLC. The project's plan drawings are on file — worth a look for anyone underwriting the surrounding block.
It isn't rising in isolation. Within a half-mile, 12 other major projects have broken ground since 2022 — roughly 334 units of new supply — including the 16-unit project at 3618 Wallace St, the 16-unit project at 3618 Wallace St, the 62-unit project at 3620 Haverford Ave. That kind of concentration is exactly what pulls land values, and buyer attention, toward a block.
We'll update this page as the project progresses — leasing, retail tenants, renderings, and construction milestones as they surface. The relevant question for investors and agents: what are the surrounding parcels worth to a builder now that this is coming?
📄 View the project's plan drawings (PDF)As this density arrives, InvestPHL is tracking 40 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 40 nearby opportunities →Major (8+ unit) new-construction projects filed within a half-mile since 2022 — the density gathering around this site.