Mixed-use property report

2101 Knorr St

1,512 sqftCMX1built 1950

Property at a glanceMixed-use

Individual owner on record

2026 assessment
$291K OPA value, not a listing price
2027 published assessment
$398K Future roll, not the current tax bill
Neighborhood area
Mayfair Approximate · based on ZIP 19149
From above · selected parcel outlined; choose a neighboring polygon to open it — imagery © Esri, Maxar
Open L&I record

1 violation row marked OPEN in 1 active case

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

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Case CF-2024-029911

Rental License- One & Two Family (R3)

IN VIOLATION

Opened Apr 12, 2024 · Latest inspection FAILED · Jun 6, 2024

  • Rental License- One & Two Family (R3)9-3902 (1)

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 $397,900. It is not yet the billed-year tax basis.

$0$250K$500K$398K2016201820202022202420262027
Property assessmentAssessmentL&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 record43 events · exact dates, newest first
  1. InspectionL&I investigation
  2. L&I violationFIRE PROTECTION SYSTEMS
  3. InspectionL&I investigation
  4. InspectionL&I investigation
  5. L&I violationCAL LICENSE OBTAIN
  6. InspectionL&I investigation
  7. InspectionL&I investigation
  8. CertificationFire Alarm Certification
  9. InspectionL&I investigation
  10. PermitCertificate of Occupancy (CO) (may inclu…
  11. PermitChange of Use
  12. InspectionL&I investigation
  13. InspectionL&I investigation
  14. L&I violationMECHANICAL- CLEARANCES
  15. L&I violationOCCUPIED W/O TCO OR CO
  16. L&I violationNEW USE
  17. InspectionL&I investigation
  18. CertificationFire Alarm Certification
  19. PermitAddition and/or Alteration
  20. InspectionL&I investigation
  21. InspectionL&I investigation
  22. L&I violationFIRE ALARM REQUIRED MIXED USE
  23. L&I violationRENTAL LICENSE- ONE & TWO FAMILY (R3)
  24. L&I violationFIRE ALARM/DETECTION SYSTEMS
  25. InspectionL&I investigation
  26. InspectionL&I investigation
  27. InspectionL&I investigation
  28. L&I violationCAL LICENSE OBTAIN
  29. L&I violationNEW USE
  30. L&I violationRENTAL LICENSE- ONE & TWO FAMILY (R3)
  31. L&I violationFIRE ALARM TESTED/CERTIFIED
  32. InspectionL&I investigation
  33. PermitChange of Use
  34. LicenseZHU YING GAO & MAO WANG LIN: Rental landlord or residential registration marked inactive
  35. InspectionL&I investigation
  36. L&I violationRUBBISH/GARBAGE EXTERIOR-OWNER
  37. L&I violationCLIP VIOLATION NOTICE
  38. LicenseZHU YING GAO & MAO WANG LIN: Rental landlord or residential registration initially issued
  39. L&I violationRUBBISH/GARBAGE EXTERIOR-OWNER
  40. L&I violationCLIP VIOLATION NOTICE
  41. L&I violationHIGH WEEDS-CUT
  42. L&I violationCLIP VIOLATION NOTICE
  43. L&I violationHIGH WEEDS-CUT

Verify the public record

$4,071/year estimated property tax

2026 taxable assessment $290,800 × 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 $397,900. 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 542009700
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

Mixed-use property

Mixed-use, recorded in the City's mixed-use category. The public record and owner trail follow.

3 open violations

What it is
Mixed-use Row B/Off-Str 2 Sty Mason
Owner
Individual owner on record Individual name redacted
$ / sq ft
$263 assessed value ÷ interior sqft
Interior area
1,512 sqft
Lot size
3,326 sqft
Built
1950
Zoning
CMX1

Block context

2100 block of Knorr St. Compare parcels, ownership, and public-record history.

See the whole block →

Next door: 2103 Knorr St  ·  2105 Knorr 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 ↗

No L&I business license is on record at this address in data through Jul 24, 2026.

Landlord and residential filings

These are property registrations or landlord filings, not businesses operating at this address.

ZHU YING GAO & MAO WANG LINInactive

Rental · Initial issue date Aug 2, 2017 · Terminal license date Sep 30, 2020

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 43 dated rows
  1. InvestigationL&I investigation

    Case CF-2026-029337 · PASSED

    The cited inspection visit was marked passed.

  2. ViolationFIRE PROTECTION SYSTEMS

    Case CF-2026-029337 · Violation VI-2026-017988 · Code F-103.2 · COMPLIED

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

  3. InvestigationL&I investigation

    Case CF-2026-029337 · FAILED

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

  4. InvestigationL&I investigation

    Case CF-2025-134395 · PASSED

    The cited inspection visit was marked passed.

  5. ViolationCAL LICENSE OBTAIN

    Case CF-2025-134395 · Violation VI-2025-097563 · Code 19-2602(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.

  6. InvestigationL&I investigation

    Case CF-2025-134395 · FAILED

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

  7. InvestigationL&I investigation

    Case CF-2025-015705 · PASSED

    The cited inspection visit was marked passed.

  8. CertificationFire Alarm Certification

    Certification BC-2025-014159 · Certified

    Expires 2026-05-27

  9. InvestigationL&I investigation

    Case CF-2025-015705 · FAILED

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

  10. PermitCertificate of Occupancy (CO) (may inclu…

    Permit AP-2025-002541 · Completed

    For a change in occupancy for the retail sales of consumer goods for the first floor of an existing structure.

  11. PermitChange of Use

    Permit ZP-2025-003638 · Issued

    Retail Sales - Consumer Goods

  12. InvestigationL&I investigation

    Case CF-2025-015705 · FAILED

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

  13. InvestigationL&I investigation

    Case CF-2025-015705 · FAILED

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

  14. ViolationMECHANICAL- CLEARANCES

    Case CF-2025-015705 · Violation VI-2025-012062 · 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.

  15. ViolationOCCUPIED W/O TCO OR CO

    Case CF-2025-015705 · Violation VI-2025-012061 · Code A-701.1/1 · COMPLIED

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

  16. ViolationNEW USE

    Case CF-2025-015705 · Violation VI-2025-012060 · Code A-301.1/65 · COMPLIED

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

  17. InvestigationL&I investigation

    Case CF-2024-029911 · FAILED

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

  18. CertificationFire Alarm Certification

    Certification BC-2024-016020 · Certified

    Expires 2025-05-30

  19. PermitAddition and/or Alteration

    Permit EP-2024-003638 · Completed

    Install fire alarm system throughout the building as per 2016 NFPA 72.

  20. InvestigationL&I investigation

    Case CF-2021-080444 · PASSED

    The cited inspection visit was marked passed.

  21. InvestigationL&I investigation

    Case CF-2024-029911 · FAILED

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

  22. ViolationFIRE ALARM REQUIRED MIXED USE

    Case CF-2024-029911 · Violation VI-2024-024611 · Code F-1103.7.11 · COMPLIED

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

  23. ViolationRENTAL LICENSE- ONE & TWO FAMILY (R3)

    Case CF-2024-029911 · Violation VI-2024-024598 · Code 9-3902 (1) · OPEN

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

  24. ViolationFIRE ALARM/DETECTION SYSTEMS

    Case CF-2024-029911 · Violation VI-2024-024616 · Code F-105.9.3 · COMPLIED

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

  25. InvestigationL&I investigation

    Case CF-2021-080444 · FAILED

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

  26. InvestigationL&I investigation

    Case CF-2021-080444 · FAILED

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

  27. InvestigationL&I investigation

    Case CF-2021-080444 · FAILED

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

  28. ViolationCAL LICENSE OBTAIN

    Case CF-2021-080444 · Violation VI-2021-057970 · Code 19-2602(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.

  29. ViolationNEW USE

    Case CF-2021-080444 · Violation VI-2021-057968 · Code A-301.1/65 · COMPLIED

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

  30. ViolationRENTAL LICENSE- ONE & TWO FAMILY (R3)

    Case CF-2021-080444 · Violation VI-2021-057961 · Code 9-3902 (1) · CLOSED

    Resolution: CLOSED - REISSUED/REWRITTEN City marked the record closed; open the case for the closing reason.

  31. ViolationFIRE ALARM TESTED/CERTIFIED

    Case CF-2021-080444 · Violation VI-2021-057969 · Code FC-13-915.1 · CLOSED

    Resolution: CLOSED - REISSUED/REWRITTEN City marked the record closed; open the case for the closing reason.

  32. InvestigationL&I investigation

    Case CF-2021-080444 · FAILED

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

  33. PermitChange of Use

    Permit ZP-2020-010113 · Expired

    Retail Sales - Consumer Goods

  34. License terminal eventZHU YING GAO & MAO WANG LIN: Rental landlord or residential registration marked inactive

    License 747602 · Inactive

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

  35. InvestigationL&I investigation

    Case 723529 · FAILED

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

  36. ViolationRUBBISH/GARBAGE EXTERIOR-OWNER

    Case 723529 · Violation 211989386 · Code CP-305 · COMPLIED

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

  37. ViolationCLIP VIOLATION NOTICE

    Case 723529 · Violation 211989387 · Code CP-01 · COMPLIED

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

  38. License issue eventZHU YING GAO & MAO WANG LIN: Rental landlord or residential registration initially issued

    License 747602 · Inactive

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

  39. ViolationRUBBISH/GARBAGE EXTERIOR-OWNER

    Case 589432 · Violation 4354921 · Code CP-305 · COMPLIED

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

  40. ViolationCLIP VIOLATION NOTICE

    Case 589432 · Violation 4354920 · Code CP-01 · COMPLIED

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

  41. ViolationHIGH WEEDS-CUT

    Case 589432 · Violation 4354922 · Code CP-312A · COMPLIED

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

  42. ViolationCLIP VIOLATION NOTICE

    Case 559490 · Violation 4112870 · Code CP-01 · COMPLIED

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

  43. ViolationHIGH WEEDS-CUT

    Case 559490 · Violation 4112871 · Code CP-312A · COMPLIED

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

Where this comes from

Methodology & freshness

This report was assembled Jul 25, 2026, 5:33 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)