Philadelphia · Wissahickon · #CP-2025-006027
9-unit building at 10 Osborn St
10 Osborn St, Wissahickon, PA · 9 homes, apartments
About this project
A new three-story attached building with nine dwelling units and two roof-access structures is proposed at 10 Osborn St in Wissahickon.
Official description: FOR THE ERECTION OF AN ATTACHED 3-STORY STRUCTURE WITH TWO (2) ROOF ACCESS STRUCTURES FOR ACCESS TO TWO SEPARATE OCCUPIABLE ROOF DECKS STRUCTURE FOR USE AS MULTI-FAMILY HOUSEHOLD LIVING NINE (9) DWELLING UNITS. THE BUILDING IS FULLY SPRINKLERED IN ACCORDANCE WITH NFPA 13. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMIITS TO BE OBTAINED FOR ALL OTHER WORK. **A COVERED WALKWAY OR SIDEWALK CLOSURE SHALL BE REQUIRED WITHIN 9 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. **EXCAVATION PERMIT REQUIRED - SEE SP-2025-001533**FOUNDATION ERECTED VIA SP-2025-001511**
- Contractor
- JA BUILDERS LLC
- Plan type
- Building permit (new construction)
- Land use
- R-2 Residential (>2 Dwellings)
- Status
- Permit issued
Filing history
- 2026-04-20 · #CP-2025-006027 · Building permit (new construction) · 9 lots/units
- 2025-12-30 · #ZP-2025-012161 · Building permit (new construction)
The full picture AI research · Nov 1, 2026
A new three-story attached apartment building with nine homes is proposed at 8-10 Osborn St, in the Manayunk/Wissahickon area of Philadelphia. It would stand about 37 feet tall. Two stair structures (called pilot houses) would lead to two roof decks and rise to about 47 feet. One of the nine units would be income-restricted.
The site is made up of two small parcels, about 2,741 square feet in total, which would be combined into one lot. The building would cover nearly all of it. A news report did not say what is on the site now.
A Philadelphia zoning permit has been reported as issued. The report gave a construction cost of about $1.2 million. It did not mention opposition, and it did not say who will live there.
What it could mean nearby
- Nine new homes, including one income-restricted unit, would be added on a small infill lot.
- The lot would be almost entirely built over (about 75% coverage). Little new open space is expected, and the rear yard would be about nine feet deep.
- The reported records did not mention parking, so effects on street parking and traffic are unknown.
- Building and construction work would bring short-term jobs and activity to the block.
Where it stands
A zoning permit was reported as issued in April 2026, so the project appears to meet zoning without needing a variance. Building permits and inspections usually follow, and then construction.
- Apr 22, 2026 Philly YIMBY reported the zoning permit as issued for the nine-unit building.
- Apr 20, 2026 Latest county filing for the project.
Want to weigh in? Because the zoning permit has already been issued, there is no known upcoming public hearing. Residents can contact the Philadelphia Department of Planning and Development or their registered community organization with questions.
Who's behind it
JA Builders LLC · JA Builders LLC is named as the contractor on the permit filings. No company website was found, and the owner is listed as G5 Realty Holdings LLC.
Around the web
- Permit Issued for Nine-Unit Building at 8-10 Osborn Street in Manayunk, Northwest PhiladelphiaPhilly YIMBY · Apr 22, 2026Reports the zoning permit, the nine units with one income-restricted, the building height, the RM-1 zoning and the companies involved.
Planning terms explained
- Pilot house
- A small enclosed structure on a roof that gives people access to a roof deck.
- RM-1
- A Philadelphia zoning category for multi-family residential buildings.
- Density bonus
- An allowance for extra homes in return for a public benefit, here one income-restricted unit.
- Lot coverage
- The share of a lot that the building covers.
- Zoning permit
- City approval confirming that a proposal meets zoning rules. It is not the same as a building permit.
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: $2.2M
- ~54 roofing squares
- ~9 HVAC systems
- ~9 kitchens / 18+ bathrooms
- ~9,000 sq ft of finished living space
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