THE INDEX: 64 17 · week of Jun 29permits soft, openings quiet, deal ledger quiet

The Philadelphia Index

Entity File · The Public Record

Company / LLC

Flatiron Building Company

13 permits

Records on file
13

Built (as contractor)

13 entries

  1. Issued Jun 15, 2026

    1 units

    3600-90 Walnut St

    Addition and/or Alteration · FOR A LEVEL II INTERIOR ALTERATIONS TO A PORTION OF AN EXISTING STRUCTURE. ALTERATIONS TO INCLUDE THE ERECTION OF PARTITION WALLS, PROVIDE FINISHES/FURNISHINGS, AND ACCESSIBILITY IMPROVEMENTS THROUGHOUT. BUILDING TO BE FULLY SPRINKLERED. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN PROFESSIONAL PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS TO BE OBTAINED FOR ALL OTHER WORK.

  2. Issued May 26, 2026

    1 units

    174 Diamond St

    Addition and/or Alteration · FOR LEVEL II ALTERATIONS (WITH NO CHANGE OF OCCUPANCY) AT BASEMENT OF EXISTING BUILDING. SEPARATE PERMITS REQUIRED FOR MECHANICAL, ELECTRICAL AND PLUMBING.

  3. Issued May 5, 2026

    1 units

    3600-48 Chestnut St

    Addition and/or Alteration · LEVEL II INTERIOR ALTERATIONS (NO CHANGE OF OCCUPANCY) FOR RENOVATIONS TO EXISTING HIGHER EDUCATION FACILITY ART GALLERY AS PER APPROVED PLANS. *2018 IEBC REVIEW*

  4. Issued Mar 4, 2026

    1 units

    312-38 Arch St

    Addition and/or Alteration · LEVEL II ALTERATIONS FOR THE INSTALLATION OF NEW MECHANICAL SYSTEM. FOR USE AS PREVIOUSLY APPROVED AS PER APPROVED PLANS.

  5. Issued Dec 18, 2025

    1 units

    601 University Ave

    Addition and/or Alteration · FOR THE ERECTION OF TEMPORARY PARTITION AND EXTERIOR WALL OPENING AS PER APPROVED PLANS.

  6. Issued Oct 23, 2025

    25 units

    3002-24 Mario Lanza Blvd

    Addition and/or Alteration · FOR LEVEL I INTERIOR ALTERATIONS WITHOUT A CHANGE IN USE AND OCCUPANCY CLASSIFICATION TO AN EXISTING ONE (1) STORY DETACHED STRUCTURE (BIN #1465606) CONTAINING TWENTY-FIVE (25) DWELLING UNITS (GROUP R-2). BUILDING IS FULLY SPRINKLERED. ALL WORK TO BE DONE PER APPROVED PLANS AND IN ACCORDANCE WITH 2018 IEBC. SEPARATE PERMITS REQUIRED FOR ANY ADDITIONAL ALTERATIONS WORK AND FOR MECHANICAL, ELECTRICAL, PLUMBING, AND FIRE SUPPRESSION WORK. **SEE MI-2025-006468 FOR BBS VARIANCE FOR SUBSTANTIAL IMPROV

  7. Issued Oct 23, 2025

    18 units

    8000-02 Lyons Ave

    Addition and/or Alteration · LEVEL I ALTERATIONS (NO CHANGE OF OCCUPANCY) FOR RENOVATIONS TO EXISTING EIGHTEEN (18) UNIT BUILDING AS PER APPROVED PLANS AND BBS VARIANCE NO. MI-2025-006476. EXISTING BUILDING FULLY SPRINKLERED. *2018 IEBC REVIEW* **SEPARATE PERMITS REQUIRED FOR ANY MEP OR FIRE SUPPRESSION WORK**

  8. Issued Oct 14, 2025

    1 units

    3600 Pine St

    Addition and/or Alteration · FOR LEVEL II ALTERATIONS WITH NO CHANGE IN OCCUPANCY. SEPARATE PERMITS REQUIRED FOR MECHANICAL, ELECTRICAL, PLUMBING AND FIRE SUPPRESSION WORK.

  9. Issued Oct 14, 2025

    1 units

    501 Osler Cir

    Addition and/or Alteration · FOR LEVEL II ALTERATIONS TO AN EXISTING COMMERCIAL BUILDING FOR USE AS AN APARTMENT BUILDING (B OCCUPANCY), ALTERATIONS TO INCLUDE THE ERECTION OF PARTITION WALLS, PROVIDE FINISHES/FURNISHINGS AND ACCESSIBILITY IMPROVEMENTS THROUGHOUT. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS TO BE OBTAINED FOR ALL OTHER WORK.

  10. Issued Oct 14, 2025

    1 units

    500 Osler Cir

    Addition and/or Alteration · FOR LEVEL II ALTERATIONS TO BASEMENT LOCKER ROOM AND BREAKROOM IN AN EXISTING STRUCTURE. ALTERATIONS TO INCLUDE THE ERECTION OF PARTITION WALLS, PROVIDE FINISHES/FURNISHINGS AND ACCESSIBILITY IMPROVEMENTS THROUGHOUT. FOR USE AS PREVIOUSLY APPROVED. ALL WORK TO BE DONE PER APPROVED PLANS. ***************** SEPARATE PERMITS TO BE OBTAINED FOR ALL OTHER WORK. ******************************************

  11. Issued Sep 29, 2025

    1 units

    3905 Spruce St

    Addition and/or Alteration · FOR THE EXTERIOR BUILDING RESTORATION INCLUDING ROOFING/ MASONRY REPAIRS, WINDOW REPAIR AND REPLACEMENT, REPLACEMENT OF EXISTING FIRE ESCAPE, RECONFIGURATION OF EXISTING ADA RAMP, ROOFTOP EQUIPMENT MECHANICAL SCREEN AND INTERIOR RENOVATIONS INCLUDING STRUCTURAL WORK- INTERIOR FLOOR RE-FRAMING PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS TO BE OBTAINED FOR ALL OTHER WORK.

  12. Issued Sep 22, 2025

    1 units

    174 Diamond St

    Addition and/or Alteration · *ASBESTOS ABATEMENT REQUIRED PRIOR START OF WORK.* FOR REPAIRS AND ALTERATIONS TO AN EXISTING EDUCATION AND TRAINING CENTER (B, E, & A-3) INCLUDING FINISHES, ACCESSIBILITY UPGRADES, AND LEVEL 2 ALTERATIONS AS PER APPLICATION/PLANS AND IN ACCORDANCE WITH THE 2018 IEBC. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMIT REQUIRED FOR ELECTRICAL, MECHANICAL, AND PLUMBING WORK.

  13. Issued Aug 6, 2025

    1 units

    501 Osler Cir

    Addition and/or Alteration · FOR A LEVEL I INTERIOR ALTERATIONS TO AN EXISTING LABORATORY SPACE (LAB #310B). BUILDING IS BE FULLY SPRINKLERED. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS TO BE OBTAINED FOR ALL OTHER WORK. **SEPARATE PERMITS REQUIRED FOR ELECTRICAL, MECHANICAL, PLUMBING & FIRE SUPPRESSION WORK**

Track this owner

We'll flag their next deal, permit, or filing — usually before the neighbors know.

Entities are grouped by a normalized name from the public record; a separate legal entity per building is common, so some portfolios span several related names. Sources: Phila. Dept. of Records (deeds), L&I (permits & violations), Dept. of Revenue (tax delinquencies), reflecting the record as of our last weekly ingest. Verify independently before relying on it.
Last generated August 1, 2026.