2026 assessment
$148K
OPA value, not a listing price
Land report
4811 Knox St
Property at a glanceVacant lot
1147 South 26th Street LP
2027 published assessment
$129K
Future roll, not the current tax bill
Location
4800 block of Knox St
ZIP 19144
Neighborhood area
Germantown
Approximate · based on ZIP 19144
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 $128,600. It is not yet the billed-year tax basis.
- OPA assessment · 2016$135K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2017$120K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2018$120K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2019$120K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2020$120K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2021$120K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2022$120K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2023$120K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2024$120K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2025$148K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2026$148K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- OPA assessment · 2027$129K assessed valueOPA’s value on the City tax roll for that year. It is not an appraisal, listing price, sale price, or live tax balance.How Philadelphia property assessments work ↗
- L&I violation · 2007-04-07RETAINING/FENCE WALL PRTLY CA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2007-04-07ARCHITECT/ENGINEER SERVICESA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2007-04-07TREE IDA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2008-03-10ARCHITECT/ENGINEER SERVICESA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2008-03-10RETAIN/FENCE WALL PRTLY C IDA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- Inspection · 2008-03-10CSUINITIALA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- L&I violation · 2009-06-28RETAINING/FENCE WALL PRTLY CA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2013-03-14LICENSE-VAC LOTA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2019-12-02EXT A-VACANT LOT CLEAN/MAINTAIA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2019-12-02CLIP VIOLATION NOTICEA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- L&I violation · 2026-05-19VACANT STRUCTURE & LANDA dated L&I enforcement row. Read the cited code, required correction, status, and later inspections together; the title alone does not establish the property’s current condition.How L&I violations and orders work ↗
- Inspection · 2026-05-19L&I investigationA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2007-04-08CSUINITIALA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2009-01-08CSUINITIALA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2009-06-29CSUINITIALA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2009-06-29CSUINITIALA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2009-06-29CSUINITIALA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2012-06-21CSUINITIALA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2012-07-10CSUINITIALA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2013-02-07CSUINITIALA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2013-03-12HCEU INSP (Housing Code Enforcement Unit inspection)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.What Philadelphia inspections check ↗
- Inspection · 2013-03-31CSUINITIALA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2013-04-23HCEU INSP (Housing Code Enforcement Unit inspection)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.What Philadelphia inspections check ↗
- Inspection · 2013-06-11HCEU INSP (Housing Code Enforcement Unit inspection)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.What Philadelphia inspections check ↗
- Inspection · 2016-04-16PRECOURT (likely: pre-court compliance inspection)A follow-up before or during enforcement escalation; confirm the case sequence in the City file.What Philadelphia inspections check ↗
- Inspection · 2026-07-07L&I investigationA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
- Inspection · 2026-07-07L&I investigationA dated L&I visit or review. Its type describes the inspection program; the separate result and later rows show whether that visit passed, failed, or led to follow-up.What Philadelphia inspections check ↗
Property assessmentAssessmentL&I violationInspection
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 record27 events · exact dates, newest first
- InspectionL&I investigation
- InspectionL&I investigation
- L&I violationVACANT STRUCTURE & LAND
- InspectionL&I investigation
- L&I violationEXT A-VACANT LOT CLEAN/MAINTAI
- L&I violationCLIP VIOLATION NOTICE
- InspectionPRECOURT (likely: pre-court compliance inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionCSUINITIAL
- L&I violationLICENSE-VAC LOT
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionCSUINITIAL
- InspectionCSUINITIAL
- InspectionCSUINITIAL
- InspectionCSUINITIAL
- InspectionCSUINITIAL
- InspectionCSUINITIAL
- L&I violationRETAINING/FENCE WALL PRTLY C
- InspectionCSUINITIAL
- L&I violationARCHITECT/ENGINEER SERVICES
- L&I violationRETAIN/FENCE WALL PRTLY C ID
- InspectionCSUINITIAL
- InspectionCSUINITIAL
- L&I violationRETAINING/FENCE WALL PRTLY C
- L&I violationARCHITECT/ENGINEER SERVICES
- L&I violationTREE ID
Verify the public record
Property tax
$2,072/year estimated property tax
2026 taxable assessment $148,000 × 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 $128,600. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 1231754002026 taxable assessment equals the full assessed value.
Historical delinquency sources Record found
$43,161.74 was recorded for this parcel in Philadelphia's June 2022 delinquency snapshot for 1997–2021. That amount may have been paid, reduced, or increased since; it is not a current payoff figure.
$21,691.11 principal$12,330.24 interest$1,499.06 penalty$7,641.33 other charges
The snapshot’s 2022 context used $120,300 total assessment, $120,300 taxable, and $0 exempt/abated. Those historical fields can differ from today’s OPA exemption status.
A separate historical parcel ledger ending in 2016 records $20,558.26 and a lien entry. It is shown as historical context only.
1997$224.20 total · $60.82 principal · $104.92 interest · $4.26 penalty1998$217.73 total · $60.82 principal · $99.44 interest · $4.26 penalty1999$211.28 total · $60.82 principal · $93.97 interest · $4.26 penalty2000$204.82 total · $60.82 principal · $88.50 interest · $4.26 penalty2001$198.36 total · $60.82 principal · $83.02 interest · $4.26 penalty2002$191.90 total · $60.82 principal · $77.55 interest · $4.26 penalty2003$185.45 total · $60.82 principal · $72.08 interest · $4.26 penalty2004$178.98 total · $60.82 principal · $66.60 interest · $4.26 penalty2005$172.53 total · $60.82 principal · $61.13 interest · $4.26 penalty2006$166.06 total · $60.82 principal · $55.65 interest · $4.26 penalty2007$1,574.07 total · $693.38 principal · $572.04 interest · $48.54 penalty2008$1,500.43 total · $693.38 principal · $509.63 interest · $48.54 penalty2009$1,426.80 total · $693.38 principal · $447.23 interest · $48.54 penalty2010$1,353.17 total · $693.38 principal · $384.83 interest · $48.54 penalty2011$1,403.83 total · $762.01 principal · $354.34 interest · $53.34 penalty2012$1,372.99 total · $791.38 principal · $296.77 interest · $55.40 penalty2013$1,334.41 total · $819.82 principal · $233.65 interest · $57.39 penalty2014$3,205.35 total · $2,078.81 principal · $405.37 interest · $145.52 penalty2015$2,984.57 total · $2,078.81 principal · $218.27 interest · $145.52 penalty2016$2,451.33 total · $2,171.58 principal · $32.58 interest · $21.72 penalty
For a purchase, refinance, or closing, request the City’s official Property Payoff statement in Tax Center under “More options.”
Where the record looks off
Conflicts in City paperwork. Flags on the data, not the property.
Assessment and sale price disagree hard
Assessed at $129K, but it traded for $27,100 in 2023 — a 4.7× gap. Could be a non-market deed the record doesn't label, or an assessment that hasn't caught up.
Land report
Vacant land
Vacant land. Deeds, ownership, zoning, and the public-source record follow.
$43K · Jun 2022 delinquency snapshot Historical lien entry · through 2016
What it is
Vacant lot
Vacant Land Reside < Acre
Owner
1147 South 26th Street LP
Corridor
Wayne Ave/SW Germantown
city commercial corridor
Lot size
22,867 sqft
Zoning
RSA3
Block context
4800 block of Knox St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 4811r-25 Knox St · 4815 Knox St
L&I licenses checked through Jul 25, 2026
No business or residential license records
No business license or residential registration matched this OPA parcel in the latest City data.
Open every source row 26 dated rows
- InvestigationL&I investigation
Case CF-2026-054899 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationL&I investigation
Case CF-2026-054899 · PASSED
The cited inspection visit was marked passed.
- ViolationVACANT STRUCTURE & LAND
Case CF-2026-054899 · Violation VI-2026-033485 · Code PM15-301 · COMPLIED
Resolution: COMPLIED - BY ENFORCEMENT ACTION City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationL&I investigation
Case CF-2026-054899 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationEXT A-VACANT LOT CLEAN/MAINTAI
Case 717707 · Violation 5258100 · Code PM-302.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 717707 · Violation 5258099 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 204770 · PASSED
A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 372474 · 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.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 372474 · 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.
- InvestigationCSUINITIAL
Case 204770 · CLOSED
City marked the record closed; open the case for the closing reason.
- ViolationLICENSE-VAC LOT
Case 372474 · Violation 2824590 · Code PM-102.4/1 · CLOSEDCASE
City marked the case closed; that does not mean the original condition never existed.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 372474 · 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.
- InvestigationCSUINITIAL
Case 204770 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationCSUINITIAL
Case 204770 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationCSUINITIAL
Case 204770 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationCSUINITIAL
Case 204770 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationCSUINITIAL
Case 204769 · PASSED
The cited inspection visit was marked passed.
- ViolationRETAINING/FENCE WALL PRTLY C
Case 204770 · Violation 2751972 · Code PM-307.1/18 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationCSUINITIAL
Case 150438 · PASSED
The cited inspection visit was marked passed.
- ViolationARCHITECT/ENGINEER SERVICES
Case 150438 · Violation 866955 · Code A-304.1/1 · COMPEXCP
- ViolationRETAIN/FENCE WALL PRTLY C ID
Case 150438 · Violation 866954 · Code PM-308.1/17 · COMPEXCP
- InvestigationCSUINITIAL
Case 150438 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationCSUINITIAL
Case 107944 · CLOSED
City marked the record closed; open the case for the closing reason.
- ViolationRETAINING/FENCE WALL PRTLY C
Case 107944 · Violation 536895 · Code PM-307.1/18 · COMPEXCP
- ViolationARCHITECT/ENGINEER SERVICES
Case 107944 · Violation 536897 · Code A-304.1/1 · COMPEXCP
- ViolationTREE ID
Case 107944 · Violation 536896 · Code PM-308.1/19 · COMPEXCP
Where this comes from
- Assessment, spec sheet & owner: OPA Property Assessments, Office of Property Assessment
- Sales & deed history: Realty Transfer Tax records, Recorder of Deeds
- Permits, violations & inspections: L&I Property History · Atlas
- Tax delinquency snapshot · June 2022: Real Estate Tax Delinquencies, Dept. of Revenue
- Historical tax ledger & liens · through 2016: Real Estate Tax Balances, Dept. of Revenue
- Current property-tax balance: Verify with Philadelphia Revenue
- Zoning appeals: L&I & Zoning Board appeals
- Neighborhood income & rents: US Census ACS 5-year estimates
- Historical mortgage rates: Freddie Mac Primary Mortgage Market Survey, annual averages
- Imagery: Street photo © Google · Aerial © Esri, Maxar
Methodology & freshness
This report was assembled Jul 26, 2026, 3:34 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)