Commercial property report

4775 League Island Blvd

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28,032 sqftI1built 2007

Property at a glanceCommercial

Individual owner on record

2026 assessment
$2.0M OPA value, not a listing price
2027 published assessment
$16M Future roll, not the current tax bill
Neighborhood area
Navy Yard Approximate · based on ZIP 19112
From above · selected parcel outlined; choose a neighboring polygon to open it — imagery © Esri, Maxar

Assessment and City record timeline

The line tracks this property’s published City assessment. Markers show deeds, permits, inspections, licenses, violations, certifications, and appeals on their recorded dates. Select one to read the filing.

Assessments are tax-roll values, not sale prices or appraisals. OPA has published a 2027 assessment of $16,118,400. It is not yet the billed-year tax basis.

$0$10M$20M$16M2010201320162019202220252027
Property assessmentAssessmentDeed / saleL&I violationPermitInspectionLicenseCertification

Scroll horizontally to move through the years. Each icon sits on its recorded date; records without a day are labeled and centered within their year. Select one to explain the filing.

Highlight
Every dated record45 events · exact dates, newest first
  1. CertificationSpecial Hazards Certification
  2. CertificationSpecial Hazards Certification
  3. PermitAddition and/or Alterations
  4. PermitAddition and/or Alteration
  5. CertificationSpecial Hazards Certification
  6. CertificationSpecial Hazards Certification
  7. CertificationSpecial Hazards Certification
  8. CertificationSpecial Hazards Certification
  9. Deed / saleDeed / sale $16M
  10. CertificationSpecial Hazards Certification
  11. CertificationSpecial Hazards Certification
  12. CertificationSpecial Hazards Certification
  13. CertificationSprinkler Certification
  14. PermitAddition and/or Alteration
  15. PermitAddition and/or Alterations
  16. PermitAddition and/or Alteration
  17. CertificationSpecial Hazards Certification
  18. PermitSign
  19. PermitSigns (Accessory / Non-Accessory)
  20. CertificationSpecial Hazards Certification
  21. InspectionBP_BLDG
  22. L&I violationDENIED ACCESS INSP BLDG PERMIT
  23. InspectionBP_BLDG
  24. PermitElectrical
  25. PermitMajor alteration
  26. PermitMechanical
  27. PermitElectrical
  28. PermitElectrical
  29. PermitMajor alteration
  30. PermitMajor alteration
  31. PermitZoning/use
  32. PermitElectrical
  33. PermitElectrical
  34. PermitMechanical
  35. PermitElectrical
  36. PermitMechanical
  37. PermitElectrical
  38. LicensePHILADELPHIA TECHNOLOGY PARK: Dumpster License - Private Property L&I license filing initially issued
  39. PermitMajor alteration
  40. PermitElectrical
  41. PermitElectrical
  42. PermitMajor alteration
  43. PermitElectrical
  44. PermitMajor alteration
  45. PermitSuppression

Verify the public record

$27,757/year estimated property tax

2026 taxable assessment $1,982,900 × 1.3998%. This is an estimate, not a bill or account balance. The City maintains payments, credits, interest, and the current amount due.

OPA has published a 2027 assessment of $16,118,400. It is not the 2026 billed-year value.

Current City balanceCheck Tax Center

Payments, credits, interest, and the current amount due are maintained by the City.

OPA 874900030
Open Philadelphia Tax Center →Use “View period balance” to inspect each tax year.
Exemption classificationNo exemption shown

2026 taxable assessment equals the full assessed value.

Historical delinquency sources No current conclusion

This parcel did not match the June 2022 delinquency snapshot. That absence does not confirm the account is current today.

For a purchase, refinance, or closing, request the City’s official Property Payoff statement in Tax Center under “More options.”

Property report

Commercial property

Commercial, recorded in the City's commercial category. The public record and owner trail follow.

What it is
Commercial Off Bld N/Com W/Pkg Mason
Owner
Individual owner on record Individual name redacted
$ / sq ft
$575 above the $151 median for 7,668 commercial parcels citywide
Interior area
28,032 sqft
Lot size
165,243 sqft
Built
2007
Zoning
I1

Block context

4700 block of League Island Blvd. Compare parcels, ownership, and public-record history.

See the whole block →

Next door: 4751 League Island Blvd  ·  4701 League Island Blvd

No business or residential license records

No business license or residential registration matched this OPA parcel in the latest City data.

Verify with the City ↗
Open every source row 45 dated rows
  1. CertificationSpecial Hazards Certification

    Certification BC-2026-012342 · Certified

    Expires 2027-04-29

  2. CertificationSpecial Hazards Certification

    Certification BC-2025-032823 · Certified

    Expires 2026-12-11

  3. PermitAddition and/or Alterations

    Permit MP-2025-003625 · Completed

    FOR THE INSTALLATION OF APPLIANCES WITH ASSOCIATED DUCTWORK. APPLIANCES TO BE INSTALLED IN ACCORDANCE WITH MANUFACTURER'S SPECIFICATIONS. ALL WORK TO BE DONE PER APPROVED PLANS. IF FIELD CONDITIONS VARY CONTACT DESIGN ENGINEER PRIOR TO THE START OF ANY WORK. SEPARATE PERMITS REQUIRED FOR ALL OTHER WORK. *NO REGISTERS, DIFFUSERS ON THIS PERMIT * NO BUILDING ALTERATIONS WITH THIS PERMIT *

  4. PermitAddition and/or Alteration

    Permit EP-2025-006156 · Completed

    Upgrade UPS-A system as per 2017 NEC and plans. Provide new exit signs and provide power to new cooling units. Install (2) new panel boards in new battery rooms. 1. Equipment Supplied by DVL. a. 400KVA Liebert EXL S1 with 3-Battery Cabinets 52BP400XWX1B, 2B, 3B b. 1-UPS-A3 Input Panel c. 1-UPS-A3 Bypass Input Panel d. 1-UPS-A3 Output Panel e. 3-Liebert DGS 1,2,3 with Condensing Units CU-1, 2, 3 f. 1-Siemens TFX 300KVA 2. As per DVL Scope of Work narrative, TierPoint navy Yard UPS-A Upgrade Project, DVL Reference No. E31-1567 dated 3/9/2022. 3. Reference Drawings CS001, E001, E101, E301, E601, E602, E701

  5. CertificationSpecial Hazards Certification

    Certification BC-2025-013229 · Certified

    Expires 2026-04-30

  6. CertificationSpecial Hazards Certification

    Certification BC-2024-028692 · Certified

    Expires 2025-10-11

  7. CertificationSpecial Hazards Certification

    Certification BC-2024-010940 · Certified

    Expires 2025-04-12

  8. CertificationSpecial Hazards Certification

    Certification BC-2024-010939 · Certified

    Expires 2025-04-11

  9. Recorded transfer$16M transfer

    2024

  10. CertificationSpecial Hazards Certification

    Certification BC-2023-022582 · Certified

    Expires 2024-10-19

  11. CertificationSpecial Hazards Certification

    Certification BC-2023-010267 · Certified

    Expires 2024-04-27

  12. CertificationSpecial Hazards Certification

    Certification BC-2023-010265 · Certified

    Expires 2024-04-27

  13. CertificationSprinkler Certification

    Certification BC-2023-009905 · Certified

    Expires 2024-04-25

  14. PermitAddition and/or Alteration

    Permit EP-2023-002546 · Completed

    Furnish material, labor, demo devices & relocate as per drawings. Install new SSI supplied devices as per drawings 1-12. Assist testing to commission fire suppression system. 2- Manual Pulls & abort Button, 5 -Horn/Strobes, 1-Low Pressure Switch, 1-Bypass switch, 4- Relay Modules, 7-Mini Modules . ALL WORK IS TO BE DONE ACCORDING TO ENGINEER SEALED DRAWINGS,IF THERE ANY CHANGES PLEASE CONTACT ENGINEER IN CHARGE. 2017 NEC,2016 NFPA-72,2018 PHILA FIRE CODE.

  15. PermitAddition and/or Alterations

    Permit FP-2023-000326 · Completed

    FOR THE INSTALLATION OF A DRY CHEMICAL FIRE SUPPRESSION SYSTEM IN ACCORDANCES WITH APPROVED PLANS, MANUFACTURER'S SPECIFICATIONS AND NFPA 17.

  16. PermitAddition and/or Alteration

    Permit CP-2022-007017 · Completed

    FOR LEVEL II ALTERATION TO THE EXISTING UTILITY BUILDING AS PER APPROVED PLANS.

  17. CertificationSpecial Hazards Certification

    Certification BC-2022-003816 · Certified

    Expires 2023-03-17

  18. PermitSign

    Permit GP-2021-013291 · Expired

    ERECTION OF ONE (1) FREESTANDING DOUBLE FACED NON-ILLUMINATED SIGN AS PER APPROVED PLANS.

  19. PermitSigns (Accessory / Non-Accessory)

    Permit ZP-2021-007886 · Issued

    FOR REMOVAL OF ONE EXISTING D/F FREE STANDING SIGN AND ERECTION OF ONE (1) FREESTANDING DOUBLE FACED NON-ILLUMINATED SIGN AND ERECTION OF ONE (1) FLAT WALL SIGN. SIZE AND LOCATION AS SHOWN IN THE APPLICATION / PLAN.

  20. CertificationSpecial Hazards Certification

    Certification BC-2021-001295 · Certified

    Expires 2022-01-22

  21. InvestigationBP_BLDG

    Case 683842 · PASSED

    The cited inspection visit was marked passed.

  22. ViolationDENIED ACCESS INSP BLDG PERMIT

    Case 683842 · Violation 5029690 · Code A-401.1/1 · COMPLIED

    City marked this violation complied with; check the resolution date and live case for what was accepted.

  23. InvestigationBP_BLDG

    Case 683842 · FAILED

    The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  24. PermitElectrical

    Permit 887358 · COMPLETED

    RELOCATE 2X4 LIGHTING FIXTURES,225KVA TRANSFORMERS AND DISCONNECTS AT A DATA CENTER AS PER 2008 NEC (SOUTH DISTRICT)

  25. PermitMajor alteration

    Permit 872224 · COMPLETED

    NO CHANGE IN USE AND OCCUPANCY CLASSIFICATION. LEVEL II INTERIOR ALTERATIONS AS PER APPROVED PLANS. SEPARATE PERMIT REQUIRED FOR MEP WORK.

  26. PermitMechanical

    Permit 874261 · COMPLETED

    MINOR MECHANICAL WORK AS PER APPROVED PLANS. NO ELECTRICAL OR PLUMBING WORK ON THIS PERMIT.

  27. PermitElectrical

    Permit 837554 · COMPLETED

    INSTALL RECEPTACLES, LIGHTING AND DOOR POWER AS PER NEC 2008 SOUTH DISTRICT - FIRE ALARM IS NOT INCLUDED ON THIS PERMIT

  28. PermitElectrical

    Permit 817473 · COMPLETED

    INSTALLATION OF NEW 1500 KW GENERATOR, SWITCHHEAR, GROUNDING SITE LIGHTING, CONDUIT AND CABLES AS PER NEC 2008 SOUTH DISTRICT

  29. PermitMajor alteration

    Permit 815235 · COMPLETED

    LEVEL II EXTERIOR ALTERATIONS TO EXPAND EXISTING EXTERIOR MECHANICAL AREA TO INCLUDE REDUCTION OF PARKING AREA AND ERECTION OF SCREENING WALL SURROUNDING MECHANICAL EQUIPMENT AS PER APPROVED PLANS. **SEPARATE PERMITS REQUIRED FOR MECHANICAL & ELECTRICAL WORK**

  30. PermitMajor alteration

    Permit 811266 · COMPLETED

    FOR INTERIOR ALTERATIONS TO INCLUDE VESTIBULE REPAIR, AS PER APPROVED PLANS. *SEPARATE PERMITS REQUIRED FOR ANY MECHANICAL, PLUMBING AND ELECTRICAL WORK*

  31. PermitZoning/use

    Permit 794780 · COMPLETED

    FOR THE ERECTION OF SCREENING WALL FOR THE MECHANICAL EQUIPMENT AND ASSOCIATED PADS ALL ACCESSORY TO BUSINESS AND PROFESSIONAL OFFICE WITH RECONFIGURATION OF EXISTING ACCESSORY PARKING SPACES FROM EIGHTY-ONE(81) ACCESSORY PARKING SPACES INCLUDING WITH FOUR(4) ACCESSIBLE SPACES TO A SIXTY-NINE(69) PARKING SPACES INCLUDING WITH FOUR(4) ACCESSIBLE SPACES AND WITH TWO(2) VAN ACCESSIBLE SPACES.SIZE AND LOCATION AS SHOWN IN THE APPLICATION.SIZE AND LOCATION AS SHOWN IN THE APPLICATION.

  32. PermitElectrical

    Permit 610126 · COMPLETED

    INSTALL 6-NEW PANEL BOARDS & 1-NEW PDU INTERCEPT FEEDER FOR NEW PDU WITHIN 20' DESIRED LOCATION AS PER NEC 2008 (COMM) (SOUTH DISTRICT)

  33. PermitElectrical

    Permit 465741 · COMPLETED

    ADD UPS, PDU'S & TIE INTO EXISTING SWITCHGEAR PER 2008 NEC (COMMERCIAL)

  34. PermitMechanical

    Permit 450216 · COMPLETED

    INSTALL A CONTAINERIZED UPS SYSTEM IN THE MECHANICAL YARD, THREE NEW CRAC A/C UNITS IN THE NEW DATA ROOM, TWO NEW PDU IN THE DATA ROOM, AND POUR A CONCRETE PAD IN THE MECHANICAL YARD AS PER THE SEALED SUBMITTED PLANS. CALL THE INSPECTOR PRIOR TO STARTING WORK.

  35. PermitElectrical

    Permit 377560 · COMPLETED

    COMMERCIAL-ADD UPS & TIE INTO EXISTING SWITCHGEAR AS PER 2008 NEC (EAST DISTRICT)

  36. PermitMechanical

    Permit 378417 · EXPIRED

    ISNTALL INDOOR CRAC UNITS AND AN AIR COLLED CHILLER WITH COOLER PLACED ON EXISTING SLAB.

  37. PermitElectrical

    Permit 377559 · COMPLETED

    COMMERCIAL-ADD 4 CRAC UNITS,ADD 1 PANEL & TIE INTO EXISTING SWITCHGEAR AS PER 2008 NEC (EAST DISTRICT)

  38. License issue eventPHILADELPHIA TECHNOLOGY PARK: Dumpster License - Private Property L&I license filing initially issued

    License 538954 · Active

    License event. Registration does not prove present operation or storefront occupancy.

  39. PermitMajor alteration

    Permit 334806 · COMPLETED

    ALTERATIONS TO THE EXISTING OFFICE TENNANT SPACE TO INCLUDE NEW DRYWALL PARTIONS,DOORS,FRAMING AND CEILING. ADA REQUIREMENTS FOR SPACE FROM PREVIOUS CONSTRUCTION.

  40. PermitElectrical

    Permit 335244 · COMPLETED

    10 NEW RECTACLES,10 FLOOR RECEPTACLES BOXES,RELOCATE EXISTING LIGHTING FIXTURES AS PER 2008 NEC

  41. PermitElectrical

    Permit 320273 · COMPLETED

    ADD GENERATOR AND TIE INTO EXISTING SWITCHGEAR AS PER 2008 NEC (SOUTH DIST)

  42. PermitMajor alteration

    Permit 319774 · COMPLETED

    NEW CONCRETE SIDEWALK AND NEW CONCRETE PAD FOR A FUTURE GENERATOR FOR EXISTING BUSINESS. SEPARATE PERMIT REQ'D FOR GENERATOR INSTALLATION.

  43. PermitElectrical

    Permit 293800 · COMPLETED

    FURNISH AND INSTALL 29 TELE/DATA CABLES(LONGEST 210')RELOCATE EXISTING DUPLEX RECEPTACLES. REMOVE AND RELOCATE (1) FURNITURE FEED AS DIRECTED. 2008 NEC CODE

  44. PermitMajor alteration

    Permit 288989 · COMPLETED

    ALTERATIONS TO EXISTING SPACE INCLUDES RELOCATION OF EXISTING DOOR FRAMES, DRYWALL INFILLS AND INSTALLATION OF PARTITIONS AS PER PLAN.

  45. PermitSuppression

    Permit 289886 · COMPLETED

    ADDING CLEAN AGENT FIRE SUPPRESSION TANKS TO EXISTING FIRE ALARM SYSTEM PER PLAN.

Where this comes from

Methodology & freshness

This report was assembled Jul 30, 2026, 6:03 PM ET. Available City datasets are queried from OpenDataPhilly (phl.carto.com) and the cited City ArcGIS feeds; record queries paginate rather than silently taking a first page. For this property: Permits: queried · Violations: queried · Investigations: queried · Appeals: queried · Licenses: queried · Building certifications: queried. “Unavailable” means the source query failed or was not supplied, not “no record.” Reports re-pull on view after seven days and on an overnight rolling schedule; citywide benchmarks recompute weekly. Source dates still govern: the parcel-level tax-delinquency snapshot is June 2022 and the separate detailed tax ledger ends in 2016, so neither establishes today’s balance. The live balance and date-effective payoff must be verified in Tax Center. AI-written passages are grounded in the assembled record and rejected if they state a number the record does not hold.

Official city record ↗  ·  L&I history ↗  ·  See the whole block  ·  Download this record (JSON)