0-unit residential new construction, zoned CMX2.


A 0-unit residential building is set to rise at 309 W Mount Pleasant Ave in Mount Airy, the kind of by-right infill quietly reshaping the block. It was cleared to build in Jan 17, 2023.
The 18,423 sq ft site is zoned CMX2, which supports a building on the order of 5 stories by right. The parcel last changed hands in 2025. The plans call for for the erection of a semi-detached structure with roof deck and roof deck access structures. size and location as shown in plan.
The owner of record is Hp Mount Pleasant Realty 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, 2 other major projects have broken ground since 2022 — roughly 142 units of new supply — including the 66-unit project at 309 W Mount Pleasant Ave, the 76-unit project at 20 W Allens Ln. 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 27 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 27 nearby opportunities →Major (8+ unit) new-construction projects filed within a half-mile since 2022 — the density gathering around this site.