Philadelphia · West Mount Airy · #CP-2025-000230
309 W Mount Pleasant Ave
309 W Mount Pleasant Ave, West Mount Airy, PA · 66 homes, mixed use
About this project
A five-story building with 66 dwelling units, ground-floor commercial shells and accessory parking is planned at 309 W Mount Pleasant Avenue. An amendment removed the basement level and moved utilities to the ground floor.
Official description: NEW CONSTRUCTION OF A FIVE (5) STORY BUILDING WITH CELLAR, ROOF DECK AND PILOT HOUSES FOR USE AS GROUND FLOOR SHELL COMMERCIAL SPACES (USE REGISTRATION & FIT-OUT PERMITS REQUIRED PRIOR TO OCCUPANCY), SIXTY-SIX (66) DWELLING UNITS AND ACCESSORY PARKING AS PER APPROVED PLANS. BUILDING TO BE FULLY SPRINKLERED PER NFPA 13 AND INCLUDE STANDPIPES PER NFPA 14. BUILDING UTILIZES GREEN ROOF AND MIXED INCOME HOUSING BONUS. FIRE-RETARDANT TREATED WOOD STUDS AND SHEATHING REQUIRED IN EXTERIOR WALLS FOR TYPE III CONSTRUCTION. FIRE WATCH REQUIRED PER DEPARTMENT CODE BULLETIN F-2001. *2018 IBC REVIEW* **SEPARATE PERMITS REQUIRED FOR MEP & FIRE SUPPRESSION WORK** AMENDMENT APPROVED 6/20/26 AMEND NEW CONSTRUCTION PERMIT CP-2025-000230 TO REMOVE BASEMENT LEVEL AND RELOCATE UTILITIES TO GROUND FLOOR LEVEL AS PER APPROVED PLANS.
- Applicant
- HP MOUNT PLEASANT REALTY LLC
- Contractor
- HM Conco LLC
- Plan type
- Building permit (new construction)
- Land use
- A-3 Assembly (Worship, Recreation, Amusement, Other)|B Business (Office)|R-2 Residential (>2 Dwellings)|S-2 Storage (Low Hazard)
- Status
- Permit issued
Filing history
- 2026-04-09 · #CP-2025-000230 · Building permit (new construction) · 66 lots/units
- 2025-01-30 · #ZP-2023-013424 · Building permit (new construction)
The full picture AI research · Nov 1, 2026
The project would put a five-story building with 66 apartments at 309-321 West Mount Pleasant Avenue in Mount Airy. The ground floor would hold four commercial spaces along the street, plus a residential lobby. Upper floors would have apartments, and the building would include a gym, storage and a rooftop deck.
The site is now several consolidated lots covering about 18,500 square feet. They hold low-rise buildings, including a pair of combined three-story twin houses. A demolition permit was reported as issued. The county filing says an amendment removed the basement level and moved utilities to the ground floor.
Press coverage says 66 units is the most the zoning allows, using bonuses for a green roof and mixed-income housing. At least seven units would be affordable. The plan shows a small rear parking lot with 23 car spaces and 24 bike spaces. Earlier 2024 renderings showed no parking, so the design has changed.
What it could mean nearby
- Rear lot with 23 car spaces reached by a curb cut, per one press report. Residents and shoppers may also park on nearby streets. A reader comment disputes the access point.
- 66 new homes, at least seven of them affordable, near Regional Rail service.
- Four ground-floor commercial spaces could add shops or services and some jobs.
- A green roof and landscape buffers next to residential properties are part of the plan.
Where it stands
Zoning review and a demolition permit were reported by April 2026, and the county's latest filing (2026-04-09) amended the plans. Next usually come building permit review of the revised plans and then construction. No construction start was found.
- Apr 10, 2026 Press report on the 66-unit proposal, including parking and ground-floor retail details
- Apr 9, 2026 Latest county filing: amendment removed the basement and moved utilities to the ground floor
- Oct 2024 Developer team was reported to be scheduled for City Design Review
- Sep 23, 2024 First renderings published for the building
Want to weigh in? The Philadelphia Department of Licenses and Inspections handles building permits. Residents can contact the local registered community organization or council district office about the project.
Who's behind it
HP Mount Pleasant Realty LLC · A limited liability company named on the filings as the project's developer. No company website or other projects were found.
Around the web
- 66-Unit Mixed-Use Building Proposed at 309-321 West Mount Pleasant Avenue in PhiladelphiaPhilly YIMBY · Apr 10, 2026Gives the unit count, parking, commercial space, zoning bonuses, developer name and demolition permit.
- Renderings Revealed for 309-21 West Mount Pleasant Avenue in Mount Airy, Northwest PhiladelphiaPhilly YIMBY · Sep 23, 2024Describes the existing buildings and the earlier no-parking design.
Planning terms explained
- CMX-2
- A Philadelphia zoning category for neighborhood-scale mixed-use areas where shops and homes can share a building.
- Mixed-income housing bonus
- Extra allowed units or size in exchange for setting aside some apartments as affordable.
- Green roof bonus
- Extra development allowance in exchange for a planted roof.
- Cellar
- A below-ground level of a building, which the amendment removed.
- Curb cut
- A lowered section of curb where vehicles enter a driveway.
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: $37.0M
- ~2,112 roofing squares
- ~66 HVAC systems
- ~66 kitchens / 132+ bathrooms
- ~184,800 sq ft of finished living space