Property report

900-18 N Marshall St

22,502 sqftRM1built 1987

Property at a glanceSchool

Individual owner on record

2026 assessment
$1.4M OPA value, not a listing price
2027 published assessment
$1.4M Future roll, not the current tax bill
Neighborhood area
Northern Liberties · Callowhill Approximate · based on ZIP 19123
From above · selected parcel outlined; choose a neighboring polygon to open it — imagery © Esri, Maxar
Open L&I record

3 violation rows marked OPEN in 2 active cases

The actual City titles, code sections, case posture, and latest recorded inspections are shown here instead of only an aggregate count.

Open City history ↗
Case CF-2025-082162

Notice Of Violation

IN VIOLATION

Opened Aug 6, 2025 · Latest inspection FAILED · Aug 6, 2025

  • Group E OccupanciesF-403.5
  • Lockdown Plan ContentsF-404.2.3.1
Case CF-2026-078900

Exit Sign Illumination

IN VIOLATION

Opened Jun 30, 2026 · Latest inspection FAILED · Jun 30, 2026

  • Exit Sign IlluminationF-1104.3

OPEN is the status in the fetched L&I file, not a new inspection by BlockReport. Read the notice for the cited condition and required correction, then verify the live case with L&I.

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 $1,392,700. It is not yet the billed-year tax basis.

$0$1.0M$2.0M$1.4M2009201220152018202120242027
Property assessmentAssessmentL&I violationAppealPermitInspectionLicenseCertification

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 record51 events · exact dates, newest first
  1. L&I violationEXIT SIGN ILLUMINATION
  2. InspectionL&I investigation
  3. AppealLIRB-H Other Health
  4. L&I violationGROUP E OCCUPANCIES
  5. L&I violationLOCKDOWN PLAN CONTENTS
  6. InspectionL&I investigation
  7. CertificationFire Alarm Certification
  8. CertificationFire Alarm Certification
  9. CertificationFire Alarm Certification
  10. PermitAddition and/or Alteration
  11. PermitAddition and/or Alterations
  12. PermitAddition and/or Alteration
  13. InspectionL&I investigation
  14. CertificationFire Alarm Certification
  15. L&I violationFIRE EXTINGUISHERS REQUIRED
  16. L&I violationRECORD KEEPING
  17. L&I violationLOCKDOWN PLAN CONTENTS
  18. L&I violationFIRE EVACUATION PLANS
  19. L&I violationPERIODIC TESTING
  20. L&I violationABATEMENT OF ELECTRICAL HAZARDS
  21. InspectionL&I investigation
  22. PermitFences Only
  23. InspectionL&I investigation
  24. InspectionL&I investigation
  25. L&I violationFIRE ALARM TESTED/CERTIFIED
  26. L&I violationLABELING
  27. InspectionL&I investigation
  28. InspectionL&I investigation
  29. L&I violationPLUMBING SYSTEMS- STORM DRAINAGE
  30. L&I violationCERTIFICATION
  31. L&I violationPULL STATION SIGNS
  32. L&I violationFIRE EXTINGUISHER PRESSURE
  33. L&I violationMECHANICAL- CLEARANCES
  34. InspectionBP_BLDG
  35. L&I violationFENCE-RESID DIST-BLDG SIDE
  36. InspectionBP_BLDG
  37. LicenseYOUNG SCHOLARS CHARTER SCHOOL INC: Food Preparing and Serving (30+ SEATS) business license initially issued
  38. PermitMajor alteration
  39. PermitUse
  40. AppealZoning board appeal
  41. PermitElectrical
  42. PermitAlteration
  43. PermitAdministrative
  44. L&I violationLIC MUST BE AVAIL FOR INSP
  45. L&I violationPERMB- WK DONE W/O NOTIFY INSP
  46. PermitElectrical
  47. PermitMechanical
  48. PermitMajor alteration
  49. PermitElectrical
  50. PermitPlumbing
  51. PermitUse

Verify the public record

$0/year estimated property tax

2026 taxable assessment $0 × 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 $1,392,700. 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 771673400
Open Philadelphia Tax Center →Use “View period balance” to inspect each tax year.
Exemption classificationFull assessment exemption shown

2026 OPA shows a zero or de minimis taxable assessment. The open assessment split does not establish the exemption's legal basis, continuing eligibility, or treatment after a transfer.

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

Not a house

School. OPA shows a full or near-full assessment exemption whose basis must be verified. A $0 assessment-based estimate does not prove the live Tax Center account has no prior-period balance or other charges.

3 open violations

What it is
School School 1 Sty Masonry
Owner
Individual owner on record Public / institutional
$ / sq ft
$62 below the $151 median for 7,668 commercial parcels citywide
Interior area
22,502 sqft
Lot size
27,910 sqft
Built
1987
Zoning
RM1

Block context

900 block of N Marshall St. Compare parcels, ownership, and public-record history.

See the whole block →

Next door: 920 N Marshall St  ·  920 N Marshall St

Business licenses at this address Latest pull

What L&I has registered at this OPA parcel, newest initial license date first.

Open the City record ↗
YOUNG SCHOLARS CHARTER SCHOOL INCActive

Food Preparing and Serving (30+ SEATS) · Initial issue date Feb 28, 2018 · Filed expiration Feb 27, 2027

A license is an L&I registration, not proof that a business is open, operating today, or located at this storefront. Dates are license dates. Events are deduped by parcel, business identity, and license type, so a renewal is not shown as another opening. Other permit and filing types remain in the full source ledger.

Open every source row 51 dated rows
  1. ViolationEXIT SIGN ILLUMINATION

    Case CF-2026-078900 · Violation VI-2026-048617 · Code F-1104.3 · OPEN

    The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.

  2. InvestigationL&I investigation

    Case CF-2026-078900 · FAILED

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

  3. AppealLIRB-H Other Health

    Appeal HA-2024-005013 · Closed · Complete

    See attached

  4. ViolationGROUP E OCCUPANCIES

    Case CF-2025-082162 · Violation VI-2025-059038 · Code F-403.5 · OPEN

    The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.

  5. ViolationLOCKDOWN PLAN CONTENTS

    Case CF-2025-082162 · Violation VI-2025-059039 · Code F-404.2.3.1 · OPEN

    The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.

  6. InvestigationL&I investigation

    Case CF-2025-082162 · FAILED

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

  7. CertificationFire Alarm Certification

    Certification BC-2025-019209 · Certified

    Expires 2026-07-11

  8. CertificationFire Alarm Certification

    Certification BC-2024-023149 · Certified

    Expires 2025-08-16

  9. CertificationFire Alarm Certification

    Certification BC-2024-023214 · Certified

    Expires 2025-08-16

  10. PermitAddition and/or Alteration

    Permit EP-2024-006301 · Completed

    Install new light fixtures & controls. Install new receptacles. Remove & relocate existing fire alarm devices and add new devices as shown. All work will be completed per plans and per NEC 2017 and 2016 NFPA 72.

  11. PermitAddition and/or Alterations

    Permit MP-2024-002872 · Completed

    FOR THE ALTERATIONS TO THE HVAC SYSTEM INCLUDING INSTALLATION OF NEW REGISTERS AND DIFFUSERS WITH ASSOCIATED DUCKWORK AND ACCESSORIES AS PER PLANS.

  12. PermitAddition and/or Alteration

    Permit CP-2024-002710 · Completed

    FOR PARTIAL DEMO AND LEVEL II ALTERATIONS TO 1ST FLOOR OF AN EXISTING STRUCTURE. ALTERATIONS TO INCLUDE THE DEMOLITION OF NON-BEARING WALLS, INSTALLATION OF NON-BEARING WALLS, RECONFIGURING OF CLASSROOM SPACES, FINISHES, FURNISHINGS AND ACCESSIBILITY IMPROVEMENTS THROUGHOUT. FOR USE AS PREVIOUSLY APPROVED. 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 THER WORK.

  13. InvestigationL&I investigation

    Case CF-2023-065937 · PASSED

    The cited inspection visit was marked passed.

  14. CertificationFire Alarm Certification

    Certification BC-2024-009806 · Certified

    Expires 2024-10-10

  15. ViolationFIRE EXTINGUISHERS REQUIRED

    Case CF-2023-065937 · Violation VI-2023-049401 · Code F-906.1 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  16. ViolationRECORD KEEPING

    Case CF-2023-065937 · Violation VI-2023-049387 · Code F-405.5 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  17. ViolationLOCKDOWN PLAN CONTENTS

    Case CF-2023-065937 · Violation VI-2023-049389 · Code F-404.2.3.1 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  18. ViolationFIRE EVACUATION PLANS

    Case CF-2023-065937 · Violation VI-2023-049391 · Code F-404.2.1 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  19. ViolationPERIODIC TESTING

    Case CF-2023-065937 · Violation VI-2023-049402 · Code F-901.6.4 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  20. ViolationABATEMENT OF ELECTRICAL HAZARDS

    Case CF-2023-065937 · Violation VI-2023-049403 · Code F-604.1 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  21. InvestigationL&I investigation

    Case CF-2023-065937 · FAILED

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

  22. PermitFences Only

    Permit ZP-2023-004137 · Issued

    FOR THE ERECTION OF A 6 FT FENCE AT THE REAR OF AN EXISTING ATTACHED STRUCTURE. SIZE AND LOCATION AS PER PLANS.

  23. InvestigationL&I investigation

    Case CF-2021-078526 · PASSED

    The cited inspection visit was marked passed.

  24. InvestigationL&I investigation

    Case CF-2020-051426 · PASSED

    The cited inspection visit was marked passed.

  25. ViolationFIRE ALARM TESTED/CERTIFIED

    Case CF-2021-078526 · Violation VI-2021-056779 · Code FC-13-915.1 · COMPLIED

    Resolution: COMPLIED - LICENSE/CERTIFICATE/REPORT OBTAINED City marked this violation complied with; check the resolution date and live case for what was accepted.

  26. ViolationLABELING

    Case CF-2021-078526 · Violation VI-2021-056788 · Code FC-13-605.3.1 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  27. InvestigationL&I investigation

    Case CF-2021-078526 · FAILED

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

  28. InvestigationL&I investigation

    Case CF-2020-051426 · FAILED

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

  29. ViolationPLUMBING SYSTEMS- STORM DRAINAGE

    Case CF-2020-051426 · Violation VI-2020-028169 · Code PM15-507.1 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  30. ViolationCERTIFICATION

    Case CF-2020-051426 · Violation VI-2020-028167 · Code FC-13-915 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  31. ViolationPULL STATION SIGNS

    Case CF-2020-051426 · Violation VI-2020-028166 · Code FC-13-907.5.1 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  32. ViolationFIRE EXTINGUISHER PRESSURE

    Case CF-2020-051426 · Violation VI-2020-028170 · Code FC-13-906.2(A) · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  33. ViolationMECHANICAL- CLEARANCES

    Case CF-2020-051426 · Violation VI-2020-028168 · Code PM15-603.3 · COMPLIED

    Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.

  34. InvestigationBP_BLDG

    Case 705676 · PASSED

    The cited inspection visit was marked passed.

  35. ViolationFENCE-RESID DIST-BLDG SIDE

    Case 705676 · Violation 5174723 · Code 14-231/2 · ERROR

  36. InvestigationBP_BLDG

    Case 705676 · FAILED

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

  37. License issue eventYOUNG SCHOLARS CHARTER SCHOOL INC: Food Preparing and Serving (30+ SEATS) business license initially issued

    License 767586 · Active

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

  38. PermitMajor alteration

    Permit 786019 · COMPLETED

    LEVEL II INTERIOR ALTERATIONS WITH PARTIAL CHANGE OF OCCUPANCY TO EXPAND EXISTING SCHOOL TO REMAINDER OF EXISTING BUILDING AS PER APPROVED PLANS. BUILDING NOT REQUIRED TO BE SPRINKLERED. **SEPARATE PERMITS REQUIRED FOR ANY MEP WORK**

  39. PermitUse

    Permit 789433 · COMPLETED

    TO CREATE ONE(1) USE IN SPACE A IN EXISTING BLDG. EXPANDING SPACE A INTO VACANT SPACE B FOR AN EXISTING EDUCATIONAL FACILITY. (USE REGISTRATION PERMIT REQUIRED PRIOR TO OCCUPANCY). NO SIGNS THIS PERMIT.

  40. AppealZoning board appeal

    Appeal 31137 · OPEN · Granted

    Related permit 789433 · SPECIAL EXCEPTION FOR THE EXPANSION OF EDUCATIONAL FACILITY FROM TENANT SPACE A TO TENANT SPACE B TO OCCUPY THE ENTIRE EXISTING DETACHED BUILDING. NO SIGN PERMIT ON THE PERMIT

  41. PermitElectrical

    Permit 795214 · COMPLETED

    INSTALL OUTLETS AND LIGHTING PER 2008 NEC (SCHOOL)ADDING SMOKES AND HORNS PER NFPA 72

  42. PermitAlteration

    Permit 350866 · COMPLETED

    RE-ROOF INSTALL CARLISLE INSULATION OVER EXISTING ROOF. FULLY ADHERED EPDM PER MANUFACTURER'S INSTRUCTIONS. RELATED DOWN SPOUT, GUTTERS, CAPPING AND COPING.

  43. PermitAdministrative

    Permit 223538 · COMPLETED

    AMENDING PERMIT #212127 FOR THE REMOVAL OF UNREQUIRED SPRINKLER SYSTEM FROM APPROVED PLANS

  44. ViolationLIC MUST BE AVAIL FOR INSP

    Case 221790 · Violation 1421356 · Code A-302.8/31 · COMPLIED

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

  45. ViolationPERMB- WK DONE W/O NOTIFY INSP

    Case 221790 · Violation 1421355 · Code A-302.11/1 · COMPLIED

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

  46. PermitElectrical

    Permit 227331 · COMPLETED

    RELOCATE 18 SMOKE DETECTORS, INSTALL 22 ADDITIONAL SMOKE DETECTORS & 20 SIGNALING DEVICES.

  47. PermitMechanical

    Permit 221790 · COMPLETED

    INSTALL NEW HVAC SPLIT SYSTEM WITH DUCTWORK & DIFFUSERS AS PER PLANS.

  48. PermitMajor alteration

    Permit 212127 · COMPLETED

    INTERIOR ALTERATIONS TO CREATE NEW CHARTER SCHOOL.BUILDING TO BE FULLY SPRINKLERED. NO COOKING ON PREMISES. BATHROOM FIXTURE COUNT NOT REVIEWED FOR THIS PERMIT. ALTERATIONS TO INCLUDE SELECTIVE DEMOLITION OF EXISTING PARTITIONS.NEW PARTIONS,NEW DOORS AND WINDOWS TO INCLUDE LOW-E 0.32 U-FACTOR FENSTRATION. SEPERATE PERMIT FOR MECHANICAL.ALL WORK BY LICENSED CONTRACTOR

  49. PermitElectrical

    Permit 216127 · COMPLETED

    INSTALL NEW SWITCHES, OUTLETS, LIGHTING, AS PER 2005 NEC (CC DIST)

  50. PermitPlumbing

    Permit 211681 · COMPLETED

    ROUGH-IN PLUMBING FROM EXISTING TO INSTALL: (7)WATER CLOSETS, (8)LAV SINKS, (2)URINALS, DRINKING FOUNTAIN AND (6)KITCHEN SINKS

  51. PermitUse

    Permit 211077 · COMPLETED

    TO USE EXISTING BLDG. AS A CHARTER SCHOOL WITH ACCESSORY CLASSROOMS, ADMINISTRATIVE OFFICES, COUNSELING OFFICES, AUDITORIUM, CAFETERIA, KITCHEN, LIBRARY AND PARKING. NO SIGNAGE ON THIS APPLICATION

Where this comes from

Methodology & freshness

This report was assembled Jul 26, 2026, 1:28 AM 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.

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