House report

2109 Knorr St

3 bd1 ba2 stories1,152 sqftRSA5built 1950

Property at a glanceHouse

Individual, other or unknown mailing address

2026 assessment
$253K OPA value, not a listing price
From above · selected parcel outlined; choose a neighboring polygon to open it — imagery © Esri, Maxar

Assessment and City record timeline

Published City assessments for this house against its block and ZIP. Dated City filings are marked on the same line. Select one to read it. Assessments are tax-roll values, not sale prices or appraisals.

$0$250K$500KZIP 19149 (Mayfair) median$257K2005200920132017202120252027
Property assessmentBlock median & rangeZIP 19149 (Mayfair) medianAssessmentDeed / saleL&I violationPermitInspectionLicense

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 record63 events · exact dates, newest first
  1. LicenseWAI YENG NG: Rental landlord or residential registration marked closed
  2. InspectionL&I investigation
  3. L&I violationRUBBISH & GARBAGE
  4. InspectionL&I investigation
  5. LicenseChau Fung Ngai (Landlord): Rental landlord or residential registration initially issued
  6. InspectionL&I investigation
  7. L&I violationEXTERIOR AREA WEEDS
  8. InspectionL&I investigation
  9. Deed / saleDeed / sale $188K
  10. L&I violationCLIP VIOLATION NOTICE
  11. L&I violationHIGH WEEDS-CUT
  12. L&I violationCLIP VIOLATION NOTICE
  13. L&I violationHIGH WEEDS-CUT
  14. L&I violationVIOL NONE FOUND
  15. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  16. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  17. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  18. L&I violationVIOL NONE FOUND
  19. InspectionPRECOURT (likely: pre-court compliance inspection)
  20. L&I violationCLIP VIOLATION NOTICE
  21. L&I violationHIGH WEEDS-CUT
  22. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  23. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  24. L&I violationHIGH WEEDS-CUT
  25. L&I violationCLIP VIOLATION NOTICE
  26. L&I violationCARBON MONOXIDE ALARM REQ'D
  27. L&I violationSINGLE STATION SMKE ALRM REQ'D
  28. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  29. L&I violationHIGH WEEDS-CUT
  30. L&I violationCLIP VIOLATION NOTICE
  31. L&I violationRUBBISH/GARBAGE EXTERIOR-OWNER
  32. L&I violationCLIP VIOLATION NOTICE
  33. L&I violationLICENSE - RENTAL PROPERTY
  34. L&I violationCLIP VIOLATION NOTICE
  35. L&I violationLICENSE - RENTAL PROPERTY
  36. InspectionPRECOURT (likely: pre-court compliance inspection)
  37. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  38. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  39. L&I violationELEC-RECEPTABLE DEFECTIVE-RES
  40. L&I violationINT-PLMBG FIXTURES-RES
  41. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  42. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  43. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  44. L&I violationSD-REQD EXIST GROUP R (Smoke detectors required in an existing residential occupancy)
  45. L&I violationINT S-MAINT SANI/RODENTPROOF
  46. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  47. L&I violationVIOL NONE FOUND
  48. InspectionPRECOURT (likely: pre-court compliance inspection)
  49. InspectionPRECOURT (likely: pre-court compliance inspection)
  50. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  51. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  52. PermitElectrical
  53. L&I violationCOULD NOT ENTER
  54. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  55. L&I violationPROSEC- EMERG IMMED RI
  56. L&I violationSD-REQD EXIST GROUP R (Smoke detectors required in an existing residential occupancy)
  57. L&I violationEXT ADDRESS NUMBERS
  58. L&I violationPROSECUTION INFO
  59. InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
  60. L&I violationCLIP VIOLATION NOTICE
  61. L&I violationRUBBISH/GARBAGE EXTERIOR-OWNER
  62. LicenseWAI YENG NG: Rental landlord or residential registration initially issued
  63. Deed / saleDeed / sale $165K

Flags: active rental license. Informational only. Not investment advice or a consumer report (FCRA).

Verify the public record

$3,541/year estimated property tax

2026 taxable assessment $253,000 × 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 $256,500. 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 542010100
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.”

The property, on paper

OPA physical field record.

Bedrooms
3
Bathrooms
1
Stories
2
Interior
1,152 sqft livable area
Lot
1,713 sqft
Basement
Partial city code H
Heat
Forced hot air city code A
Central air
Yes
Garage
1 space
Exterior condition
Average city code 4
Interior condition
Average city code 4
Quality grade
C assessor's grade
Zoning
RSA5 city zoning code

OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.

Block context

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

See the whole block →

Next door: 2107 Knorr St  ·  2111 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.

Chau Fung Ngai (Landlord)Active

Rental · Initial issue date Sep 25, 2020 · Filed expiration Sep 24, 2026

WAI YENG NGClosed

Rental · Initial issue date Jun 13, 2006 · Terminal license date Feb 28, 2021

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 63 dated rows
  1. License terminal eventWAI YENG NG: Rental landlord or residential registration marked closed

    License 372986 · Closed

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

  2. InvestigationL&I investigation

    Case CF-2020-084494 · PASSED

    The cited inspection visit was marked passed.

  3. ViolationRUBBISH & GARBAGE

    Case CF-2020-084494 · Violation VI-2020-050594 · Code PM15-308.1 · 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-2020-084494 · FAILED

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

  5. License issue eventChau Fung Ngai (Landlord): Rental landlord or residential registration initially issued

    License 852180 · Active

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

  6. InvestigationL&I investigation

    Case CF-2020-058428 · PASSED

    The cited inspection visit was marked passed.

  7. ViolationEXTERIOR AREA WEEDS

    Case CF-2020-058428 · Violation VI-2020-032657 · 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.

  8. InvestigationL&I investigation

    Case CF-2020-058428 · FAILED

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

  9. Recorded transfer$188K transfer

    2020

  10. ViolationCLIP VIOLATION NOTICE

    Case 704406 · Violation 5166147 · Code CP-01 · COMPLIED

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

  11. ViolationHIGH WEEDS-CUT

    Case 704406 · Violation 5166148 · Code CP-312A · COMPLIED

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

  12. ViolationCLIP VIOLATION NOTICE

    Case 685800 · Violation 5042590 · Code CP-01 · COMPLIED

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

  13. ViolationHIGH WEEDS-CUT

    Case 685800 · Violation 5042591 · Code CP-312A · COMPLIED

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

  14. ViolationVIOL NONE FOUND

    Case 319889 · Violation 4984968 · Code A-000.0/1 · CLOSEDCASE

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

  15. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 195731 · 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.

  16. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 319889 · 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.

  17. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 669177 · 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.

  18. ViolationVIOL NONE FOUND

    Case 669177 · Violation 4983414 · Code A-000.0/1 · COMPLIED

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

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

    Case 637497 · PASSED

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

  20. ViolationCLIP VIOLATION NOTICE

    Case 654007 · Violation 4805589 · Code CP-01 · COMPLIED

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

  21. ViolationHIGH WEEDS-CUT

    Case 654007 · Violation 4805590 · Code CP-312A · COMPLIED

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

  22. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 637497 · 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.

  23. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 637497 · 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.

  24. ViolationHIGH WEEDS-CUT

    Case 638471 · Violation 4704457 · Code CP-312A · COMPLIED

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

  25. ViolationCLIP VIOLATION NOTICE

    Case 638471 · Violation 4704456 · Code CP-01 · COMPLIED

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

  26. ViolationCARBON MONOXIDE ALARM REQ'D

    Case 637497 · Violation 4783062 · Code FC-13-908.7 · COMPLIED

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

  27. ViolationSINGLE STATION SMKE ALRM REQ'D

    Case 637497 · Violation 4783061 · Code FC-13-907.2 · COMPLIED

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

  28. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 637497 · 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.

  29. ViolationHIGH WEEDS-CUT

    Case 591502 · Violation 4368860 · Code CP-312A · COMPLIED

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

  30. ViolationCLIP VIOLATION NOTICE

    Case 591502 · Violation 4368858 · Code CP-01 · COMPLIED

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

  31. ViolationRUBBISH/GARBAGE EXTERIOR-OWNER

    Case 591502 · Violation 4368859 · Code CP-305 · COMPLIED

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

  32. ViolationCLIP VIOLATION NOTICE

    Case 510280 · Violation 3783314 · Code CP-01 · COMPLIED

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

  33. ViolationLICENSE - RENTAL PROPERTY

    Case 510280 · Violation 3783315 · Code CP-101 · COMPLIED

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

  34. ViolationCLIP VIOLATION NOTICE

    Case 506948 · Violation 3758775 · Code CP-01 · COMPLIED

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

  35. ViolationLICENSE - RENTAL PROPERTY

    Case 506948 · Violation 3758776 · Code CP-101 · COMPLIED

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

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

    Case 286221 · PASSED

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

  37. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 286221 · 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.

  38. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 286221 · 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.

  39. ViolationELEC-RECEPTABLE DEFECTIVE-RES

    Case 286221 · Violation 2271846 · Code PM-407.2/9 · COMPLIED

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

  40. ViolationINT-PLMBG FIXTURES-RES

    Case 286221 · Violation 2271845 · Code PM-405.3/1 · COMPLIED

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

  41. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 286221 · 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.

  42. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 271199 · 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.

  43. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 271199 · 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.

  44. ViolationSD-REQD EXIST GROUP R (Smoke detectors required in an existing residential occupancy)

    Case 271199 · Violation 2067509 · Code FC-907.3/20 · COMPLIED

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

  45. ViolationINT S-MAINT SANI/RODENTPROOF

    Case 271199 · Violation 2067510 · Code PM-305.3/1 · COMPLIED

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

  46. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 271199 · 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.

  47. ViolationVIOL NONE FOUND

    Case 195731 · Violation 4985010 · Code A-000.0/1 · COMPLIED

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

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

    Case 188211 · 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.

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

    Case 188211 · 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.

  50. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 188211 · 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.

  51. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 188211 · 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.

  52. PermitElectrical

    Permit 195252 · COMPLETED

    REPLACE OLD 100 AMP METER SOCKET WITH NEW... IN ACCORDANCE WITH 2005 NEC

  53. ViolationCOULD NOT ENTER

    Case 188211 · Violation 1269290 · Code A.CNE.000 · COMPLIED

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

  54. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 188211 · 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.

  55. ViolationPROSEC- EMERG IMMED RI

    Case 188211 · Violation 1269291 · Code A-503.1/2 · COMPLIED

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

  56. ViolationSD-REQD EXIST GROUP R (Smoke detectors required in an existing residential occupancy)

    Case 188211 · Violation 1269294 · Code FC-907.3/20 · COMPLIED

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

  57. ViolationEXT ADDRESS NUMBERS

    Case 188211 · Violation 1269293 · Code FC-505.1/1 · COMPLIED

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

  58. ViolationPROSECUTION INFO

    Case 188211 · Violation 1269292 · Code A-503.1/1 · COMPLIED

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

  59. InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)

    Case 188211 · 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.

  60. ViolationCLIP VIOLATION NOTICE

    Case 171990 · Violation 1041964 · Code CP-01 · COMPLIED

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

  61. ViolationRUBBISH/GARBAGE EXTERIOR-OWNER

    Case 171990 · Violation 1041965 · Code CP-305 · COMPLIED

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

  62. License issue eventWAI YENG NG: Rental landlord or residential registration initially issued

    License 372986 · Closed

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

  63. Recorded transfer$165K transfer

    2005

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)