4-unit residential new construction, zoned RSA5.
A 4-unit residential building is set to rise at 4167 Mantua Ave in University City & Powelton, the kind of by-right infill quietly reshaping the block. It was cleared to build in Apr 27, 2026.
The 1,500 sq ft site is zoned RSA5, which supports a building on the order of 3 stories by right. The parcel last changed hands in 2026. The plans call for for the erection of a three (3) story attached structure of type v-a construction with basement, roof deck, and roof deck access structure for use as four (4) dwelling units. building to be fully sprinklered per nfpa 13. all work to be done per approved plans and in accordance with 2018 ibc. separate permits required for mechanical, electrical, plumbing, fire suppression, and excavation work.
The owner of record is Lapstone Capital 4 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 221 units of new supply — including the 10-unit project at 4129 Ogden St, the 8-unit project at 1221 N 42nd St, the 8-unit project at 1203 N 41st St. 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 111 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 111 nearby opportunities →Major (8+ unit) new-construction projects filed within a half-mile since 2022 — the density gathering around this site.