26-unit residential new construction, zoned RM1.
A 26-unit residential building is set to rise at 15 W Rittenhouse St in Germantown, the kind of by-right infill quietly reshaping the block. It was cleared to build in Nov 22, 2021.
The 5,859 sq ft site is zoned RM1, which supports a building on the order of 5 stories by right. The parcel last changed hands in 2021. The plans call for **amendment 6/13/2025 to amend the intterior layout and structural framing for units 206, 207, 208 and mechanical room in cellar.** **amendment 3/4/2025 to increase the number of dwelling units (35 units propoised) and extension of the green roof area.** for the erection of an attached five story attached structure with roof decks accessed two roof deck access structures (for residential use only). structure for use multi-family household living twenty-six (26) dwelling units and eleven (11) accessory interior parking spaces (including 1 ada / van accessible space) and ten (10) accessory class 1a bicycle parking spaces on accessible routes. all units are type b units with the exception of one (1) required type a unit. building is fully sprinklered in accordance with nfpa 13 and standpipes to be provided in the exit stairways per nfpa 14. building is composed of type iiib construction (fire-retardants treat wood). all work to be done per approved plans. if field conditions vary contact design engineer prior to the start of any work. **a covered walkway or sidewalk closure shall be required within 14 feet of the building facade in accordance with section 3306 of the 2018 ibc. separate building and/or streets department permit required prior to the start of any work.*** fire watch is required once combustible construction is over 40 feet in height, a site safety plan shall be submited to building inspector prior to the start of any construction.*** separate permiits to be obtained for all other work.
The owner of record is 15 W Rittenhouse St 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, 3 other major projects have broken ground since 2022 — roughly 110 units of new supply — including the 32-unit project at 184 E Chelten Ave, the 33-unit project at 26-34 Church Ln, the 45-unit project at 6225-27 Germantown 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 59 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 59 nearby opportunities →Major (8+ unit) new-construction projects filed within a half-mile since 2022 — the density gathering around this site.