Philadelphia · Mantua · #CP-2025-002144
3401 Hamilton St mixed-use building
3401 Hamilton St, Mantua, PA · 15 homes, mixed use
About this project
A four-story building with shell commercial space and 15 dwelling units is proposed at 3401 Hamilton St in Mantua, Philadelphia. An amendment subdivides the commercial space into two shell units.
Official description: NEW CONSTRUCTION OF A FOUR (4) STORY BUILDING WITH COMMON ROOF DECK AND PILOT HOUSE FOR USE AS A SHELL COMMERCIAL SPACE (USE REGISTRATION & FIT-OUT PERMITS REQUIRED PRIOR TO OCCUPANCY) AND FIFTEEN (15) DWELLING UNITS (MIXED INCOME HOUSING BONUS UTILIZED) AS PER APPROVED PLANS. BUILDING TO BE FULLY SPRINKLERED AND INCLUDE STANDPIPES. SEE SP-2022-000634 FOR FOUNDATION APPROVAL. FIRE WATCH REQUIRED PER DEPARTMENT CODE BULLETIN F-2001. *2018 IBC REVIEW* **SEPARATE PERMITS REQUIRED FOR MEP & FIRE SUPPRESSION WORK** [AMENDMENT APPROVED 11/2/2025 TO AMEND NEW CONSTRUCTION PERMIT CP-2025-002144 TO DOCUMENT EXISTING PROPERTY LINE ENCROACHMENT AND CHANGES TO ARCHITECTURAL AND STRUCTURAL DRAWINGS FOR THE EXISTING ENCROACHMENT AS PER APPROVED PLANS.] [AMENDMENT APPROVED 8/4/2026 TO AMEND NEW CONSTRUCTION PERMIT CP-2025-002144 TO SUBDIVIDE THE PREVIOUSLY APPROVED COMMERCIAL TENANT SPACE INTO TWO (2) SHELL COMMERCIAL SPACES, TO INSTALL AN EXTERIOR ACCESSIBLE RAMP, AND TO ELIMINATE THE CELLAR PECO VAULT.]
- Applicant
- 3401 HAMILTON LLC
- Contractor
- GRIT Construction LLC
- Plan type
- Building permit (new construction)
- Land use
- B Business (Office)|R-2 Residential (>2 Dwellings)
- Status
- Permit completed
Filing history
- 2025-07-11 · #CP-2025-002144 · Building permit (new construction) · 15 lots/units
The full picture AI research · Nov 1, 2026
A four-story building is proposed at the corner of Hamilton and North 34th Streets. It would hold 15 apartments above ground-floor commercial space that is left unfinished ("shell") for a future tenant. A later amendment splits that commercial space into two units. The building also has a cellar and a shared roof deck.
The site was a vacant lot, though trade coverage says a structure there was demolished in April 2025. The county lists the area as Mantua. Local coverage places the site in Powelton Village, just west of Drexel University, so the neighborhood label differs between sources.
Permits were reported issued in July 2025. Construction financing of about $4.7 million was arranged for the project. No tenants have been named, and no opposition was found.
What it could mean nearby
- 15 new apartments, some of them mixed-income under a city housing bonus
- Two small ground-floor commercial units could bring shops or services, but no tenants are known
- Close to transit and Drexel, with only five bicycle parking spaces planned
- Construction will bring temporary noise and traffic on the corner
Where it stands
Permits have been reported issued, and the county's latest filing (July 2025) amended the plans to split the commercial space. Construction usually follows, then separate permits to fit out each commercial unit before it can open.
- Jul 15, 2025 Trade news reported permits issued for the 15-unit building
- Jul 11, 2025 Latest county filing, an amendment splitting the commercial space into two shell units
- Apr 2025 Demolition of the prior structure on the site reported complete
- Mar 2025 Construction financing of about $4.7 million arranged, per a lender's page
Want to weigh in? No public hearing was found. Residents can contact the City of Philadelphia Department of Planning and Development or the local registered community organization with questions.
Who's behind it
3401 Hamilton LLC · A single-project ownership company, with GRIT Construction LLC as builder and Gnome Architects LLC as architect.
Around the web
- Permits Issued for 15-Unit Mixed-Use Development at 3401 Hamilton Street in Powelton Village, West PhiladelphiaPhillyYIMBY · Jul 15, 2025Reports permits, the four-story design, 15 units, the builder and architect, and the site's zoning.
- Northmarq arranges $4.725M construction financing for mixed-use propertyNorthmarq · Mar 1, 2025Confirms 15 units, about 1,965 sq ft of commercial space and construction financing.
Planning terms explained
- Shell commercial space
- Ground-floor space built without interior finishes, so a future tenant completes it.
- Amendment
- A change to a filing already on record, here dividing the commercial space into two units.
- Mixed-use
- A building combining homes with shops or offices.
- Mixed Income Housing Bonus
- A city incentive that allows extra building size in return for including affordable units.
- Overlay district
- Extra local zoning rules added on top of the base zoning, here to protect neighborhood character.
Researched by AI from public sources on Nov 1, 2026. It can make mistakes, so check the linked sources and the municipality before relying on it.
Scope estimate for contractors
Estimated construction value: $8.4M
- ~480 roofing squares
- ~15 HVAC systems
- ~15 kitchens / 30+ bathrooms
- ~42,000 sq ft of finished living space
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