The Block Report

Apartment building report

4800 Knorr St

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3 stories4,500 sqftRSA3built 1917

Property at a glanceApartment building

4800 Knorr Street LLC

2026 assessment
$315K OPA value, not a listing price
2027 published assessment
$550K Future roll, not the current tax bill
Neighborhood area
Tacony · Wissinoming Approximate · based on ZIP 19135
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 $549,500. It is not yet the billed-year tax basis.

$0$500K$1.0M$550K200220072012201720222027
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 record68 events · exact dates, newest first
  1. CertificationFire Alarm Certification
  2. InspectionL&I investigation
  3. L&I violationEXTERIOR AREA WEEDS
  4. InspectionL&I investigation
  5. InspectionL&I investigation
  6. License4800 KNORR STREET LLC: Rental landlord or residential registration marked inactive
  7. License4800 KNORR STREET LLC: Rental landlord or residential registration initially issued
  8. L&I violationMULTI FAMILY (R2)
  9. L&I violationFIRE ALARM TESTED/CERTIFIED
  10. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  11. InspectionPRECOURT (likely: pre-court compliance inspection)
  12. InspectionPRECOURT (likely: pre-court compliance inspection)
  13. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  14. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  15. InspectionPRECOURT (likely: pre-court compliance inspection)
  16. L&I violationFIRE ALARM TESTED/CERTIFIED
  17. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  18. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  19. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  20. L&I violationEXTERIOR STRUCT ROOF DRAINAGE
  21. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  22. License4800 KNORR ST LLC: Rental landlord or residential registration initially issued
  23. Deed / saleDeed / sale $210K
  24. InspectionPRECOURT (likely: pre-court compliance inspection)
  25. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  26. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  27. L&I violationANNUAL CERT FIRE ALARM
  28. L&I violationLICENSE-RES MFD
  29. InspectionPRECOURT (likely: pre-court compliance inspection)
  30. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  31. LicenseMANHATTAN FINANCIAL INC: Rental landlord or residential registration marked inactive
  32. InspectionPP_PLUMB
  33. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  34. InspectionPRECOURT (likely: pre-court compliance inspection)
  35. L&I violationDRAINAGE-DOWNSPOUT CONNECT
  36. L&I violationDRAINAGE-MAIN DRAIN REPAIR-RES
  37. L&I violationEXT A-PATHWAYS CLEAR/MAINTAIN
  38. InspectionPP_PLUMB
  39. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  40. PermitPlumbing
  41. PermitPlumbing
  42. L&I violationPROSEC- STD INFO (likely: Standard enforcement or prosecution notice)
  43. L&I violationDRAINAGE-MAIN DRAIN REPAIR-RES
  44. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  45. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  46. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  47. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  48. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  49. L&I violationLICENSE-RES MFD
  50. L&I violationANNUAL CERT FIRE ALARM
  51. L&I violationCOULD NOT ENTER
  52. L&I violationLICENSE-NO LIC/NO RENT
  53. L&I violationPROSEC- STD INFO (likely: Standard enforcement or prosecution notice)
  54. L&I violationPROSEC- EMERG IMMED RI
  55. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  56. LicenseMANHATTAN FINANCIAL INC: Rental landlord or residential registration initially issued
  57. InspectionPRECOURT (likely: pre-court compliance inspection)
  58. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  59. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  60. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  61. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  62. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  63. InspectionL_CLIP
  64. InspectionL_CLIP
  65. InspectionL_CLIP
  66. InspectionL_CLIP
  67. InspectionL_CLIP
  68. Deed / saleDeed / sale $150K

Verify the public record

$4,409/year estimated property tax

2026 taxable assessment $315,000 × 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 $549,500. 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 881142750
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.”

Building report

Apartment building

Apartment building, recorded in the City's apartments category. The public record and owner trail follow.

What it is
Apartment building Apts 5-50 Units Masonry
Owner
4800 Knorr Street LLC
$ / sq ft
$122 below the $147 median for 2,826 apartments parcels citywide
Licensed units
5 active rental license
Interior area
4,500 sqft
Lot size
3,375 sqft
Stories
3
Built
1917
Zoning
RSA3

Recorded owner

Who's behind it

4800 Knorr Street LLC · corporate / LLC owner

• Owns 2 properties across Philadelphia under this name, assessed at $751K combined
• Tax bills mail to 2 Camellia CT, Trevose PA, 19053 — outside Philadelphia
• Holds an active rental license for this address

PA corporate registry ↗OpenCorporates ↗City record ↗

Block context

4800 block of Knorr St. Compare parcels, ownership, and public-record history.

See the whole block →

Next door: 4802 Knorr St  ·  4804 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 23, 2026.

Landlord and residential filings

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

4800 KNORR STREET LLCInactive

Rental · Initial issue date May 14, 2020 · Terminal license date Jul 12, 2021

4800 KNORR ST LLCActive

Rental · Initial issue date Aug 8, 2016 · Filed expiration Aug 7, 2026

MANHATTAN FINANCIAL INCInactive

Rental · Initial issue date Jan 8, 2007 · Terminal license date Dec 22, 2012

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 68 dated rows
  1. CertificationFire Alarm Certification

    Certification BC-2026-006868 · Certified

    Expires 2027-03-13

  2. InvestigationL&I investigation

    Case CF-2025-072503 · PASSED

    The cited inspection visit was marked passed.

  3. ViolationEXTERIOR AREA WEEDS

    Case CF-2025-072503 · Violation VI-2025-052675 · Code PM15-302.4 · COMPLIED

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

  4. InvestigationL&I investigation

    Case CF-2025-072503 · FAILED

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

  5. InvestigationL&I investigation

    Case 650821 · PASSED

    The cited inspection visit was marked passed.

  6. License terminal event4800 KNORR STREET LLC: Rental landlord or residential registration marked inactive

    License 842084 · Inactive

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

  7. License issue event4800 KNORR STREET LLC: Rental landlord or residential registration initially issued

    License 842084 · Inactive

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

  8. ViolationMULTI FAMILY (R2)

    Case 650821 · Violation 211951360 · Code 9-3902 (2) · CLOSED

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

  9. ViolationFIRE ALARM TESTED/CERTIFIED

    Case 650821 · Violation 211951361 · Code FC-13-915.1 · CLOSED

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

  10. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 650821 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  11. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 611184 · CLOSED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. City marked the record closed; open the case for the closing reason.

  12. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 611184 · FAILED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  13. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 611184 · CLOSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.

  14. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 611184 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  15. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 590118 · PASSED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.

  16. ViolationFIRE ALARM TESTED/CERTIFIED

    Case 611184 · Violation 4767625 · Code FC-13-915.1 · CLOSEDCASE

    City marked the case closed; that does not mean the original condition never existed.

  17. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 611184 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  18. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 590118 · CLOSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.

  19. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 590118 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  20. ViolationEXTERIOR STRUCT ROOF DRAINAGE

    Case 590118 · Violation 4485454 · Code PM15-304.7 · COMPLIED

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

  21. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 590118 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  22. License issue event4800 KNORR ST LLC: Rental landlord or residential registration initially issued

    License 710300 · Active

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

  23. Recorded transfer$210K transfer

    2016

  24. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 368909 · FAILED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  25. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 368909 · CLOSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.

  26. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 368909 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  27. ViolationANNUAL CERT FIRE ALARM

    Case 368909 · Violation 2972011 · Code FC-915.1/3 · COMPLIED

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

  28. ViolationLICENSE-RES MFD

    Case 368909 · Violation 2972012 · Code PM-102.1/1 · CLOSEDCASE

    City marked the case closed; that does not mean the original condition never existed.

  29. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 192451 · PASSED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.

  30. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 368909 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  31. License terminal eventMANHATTAN FINANCIAL INC: Rental landlord or residential registration marked inactive

    License 396215 · Inactive

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

  32. InvestigationPP_PLUMB

    Case 227521 · PASSED

    The cited inspection visit was marked passed.

  33. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 227595 · CLOSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.

  34. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 192451 · FAILED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  35. ViolationDRAINAGE-DOWNSPOUT CONNECT

    Case 227521 · Violation 1602923 · Code PM-302.4/6 · COMPLIED

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

  36. ViolationDRAINAGE-MAIN DRAIN REPAIR-RES

    Case 227521 · Violation 1602922 · Code PM-405.3/8 · COMPLIED

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

  37. ViolationEXT A-PATHWAYS CLEAR/MAINTAIN

    Case 227521 · Violation 1602921 · Code PM-302.5/1 · COMPLIED

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

  38. InvestigationPP_PLUMB

    Case 227521 · FAILED

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

  39. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 223983 · PASSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked passed.

  40. PermitPlumbing

    Permit 257624 · COMPLETED

    REPLACE CURB TRAP/FRESH AIR INLET

  41. PermitPlumbing

    Permit 257985 · COMPLETED

    REPLACE LATERAL

  42. ViolationPROSEC- STD INFO (likely: Standard enforcement or prosecution notice)

    Case 223983 · Violation 1562084 · Code A-503.2/2 · COMPLIED

    Legacy L&I shorthand; the case notice contains the actual required correction and deadlines. City marked this violation complied with; check the resolution date and live case for what was accepted.

  43. ViolationDRAINAGE-MAIN DRAIN REPAIR-RES

    Case 223983 · Violation 1562085 · Code PM-405.3/8 · COMPLIED

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

  44. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 223983 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  45. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 192451 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  46. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 192451 · CLOSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.

  47. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 192451 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  48. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 192451 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  49. ViolationLICENSE-RES MFD

    Case 192451 · Violation 1604867 · Code PM-102.1/1 · COMPLIED

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

  50. ViolationANNUAL CERT FIRE ALARM

    Case 192451 · Violation 1604866 · Code FC-914.1/3 · COMPLIED

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

  51. ViolationCOULD NOT ENTER

    Case 192451 · Violation 1604869 · Code A.CNE.000 · COMPLIED

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

  52. ViolationLICENSE-NO LIC/NO RENT

    Case 192451 · Violation 1604868 · Code PM-102.6/3 · COMPLIED

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

  53. ViolationPROSEC- STD INFO (likely: Standard enforcement or prosecution notice)

    Case 192451 · Violation 1604865 · Code A-503.2/2 · COMPLIED

    Legacy L&I shorthand; the case notice contains the actual required correction and deadlines. City marked this violation complied with; check the resolution date and live case for what was accepted.

  54. ViolationPROSEC- EMERG IMMED RI

    Case 192451 · Violation 1604864 · Code A-503.1/2 · COMPLIED

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

  55. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 192451 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  56. License issue eventMANHATTAN FINANCIAL INC: Rental landlord or residential registration initially issued

    License 396215 · Inactive

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

  57. InvestigationPRECOURT (likely: pre-court compliance inspection)

    Case 55423 · CLOSED

    A follow-up before or during enforcement escalation; confirm the case sequence in the City file. City marked the record closed; open the case for the closing reason.

  58. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 55423 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  59. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 55423 · CLOSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.

  60. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 73384 · CLOSED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. City marked the record closed; open the case for the closing reason.

  61. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 73384 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  62. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 55423 · FAILED

    A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.

  63. InvestigationL_CLIP

    Case 16294 · PASSED

    The cited inspection visit was marked passed.

  64. InvestigationL_CLIP

    Case 16294 · FAILED

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

  65. InvestigationL_CLIP

    Case 16294 · FAILED

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

  66. InvestigationL_CLIP

    Case 8823 · CLOSED

    City marked the record closed; open the case for the closing reason.

  67. InvestigationL_CLIP

    Case 8823 · FAILED

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

  68. Recorded transfer$150K transfer

    2002

Where this comes from
Methodology & freshness

This report was assembled Jul 24, 2026, 9:01 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.

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