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Philadelphia · Mantua · #CP-2024-000087

Four-story residential building, 865 N 40th St

865 N 40Th St, Mantua, PA · 9 homes, apartments

About this project

A four-story attached building with nine dwelling units is proposed at 865 N 40th St in Mantua, Philadelphia, PA.

Official description: FOR THE ERECTION OF A FOUR (4) STORY ATTACHED VA BUILDING FOR THE USE AS R2 OCCUPANCY (9 DWELLING UNITS). BUILDING TO BE FULLY SPRINKLERED IN ACCORDANCE WITH NFPA 13R AND STANDPIPES TO BE PROVIDED IN THE EXIT STAIRWAYS PER NFPA 14. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. 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 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. AMENDMENT APPROVED AS OF 09/23/2024: TO CHANGE THE FOUNDATION SYSTEM TO HELICAL PIER AND GRADE BEAM DESIGN, CHANGE SPECIAL INSPECTION AGENCY AND INSTALL CANOPY AT FRONT ENTRY AS PER APPROVED PLANS.

Applicant
NORTH 40TH STREET LP
Contractor
Costanza Builders Inc
Plan type
Building permit (new construction)
Land use
R-2 Residential (>2 Dwellings)
Status
Permit completed

Filing history

  • 2024-04-25 · #CP-2024-000087 · Building permit (new construction) · 9 lots/units

City property record, permits and appeals (Atlas) →

The full picture AI research · Nov 1, 2026

County records show a proposal for a four-story attached building with nine apartments at 865 N 40th St in Mantua, West Philadelphia. The latest filing is dated April 25, 2024. The filing lists North 40th Street LP and Costanza Builders Inc as the firms involved.

No news coverage, hearing notice, or developer project page was found for this exact address. The records do not say what is on the site now, whether the units will be rented or sold, or who will live there.

Other small apartment buildings have been permitted along the same stretch of N 40th St in recent years. That suggests the block is seeing steady infill construction, meaning new buildings on small or vacant lots.

What it could mean nearby

Where it stands

The county filing is from April 2024. No approval, permit, or hearing outcome for this address was found online. The usual next steps are zoning review, then building permits, then construction.

Want to weigh in? The City of Philadelphia Department of Planning and Development and, if a variance is needed, the Zoning Board of Adjustment handle zoning decisions. Residents can also contact the neighborhood's registered community organization.

Who's behind it

North 40th Street LP · The filing lists this entity with Costanza Builders Inc. Little public information was found about it. Costanza Builders appears as contractor on other N 40th St projects in the same area.

Around the web

Planning terms explained
Infill
New construction on a small or empty lot among existing buildings.
Attached building
A building that shares one or more walls with its neighbors, like a rowhouse.
Zoning Board of Adjustment
The city board that decides whether a project may depart from the zoning rules, for example on unit count.
Dwelling unit
A single home or apartment with its own kitchen and bath.

We searched the web for this project but found nothing beyond the county record, so this explanation is based on the filing alone. 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

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