2026 assessment
$121K
OPA value, not a listing price
Mixed-use property report
4537 Knorr St
Research this property with Analyst →1,344 sqftCMX1built 1935
Property at a glanceMixed-use
Individual owner on record
2027 published assessment
$156K
Future roll, not the current tax bill
Location
4500 block of Knorr St
ZIP 19135
Neighborhood area
Tacony · Wissinoming
Approximate · based on ZIP 19135
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 $155,900. It is not yet the billed-year tax basis.
- OPA assessment · 2016$110K 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$110K 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$109K 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$112K 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$113K 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$113K 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$113K 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$108K 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$108K 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$121K 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$121K 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$156K 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 ↗
- Deed / sale · 2003Deed / sale $66KA recorded real-estate document or transfer event. The amount and date can be useful history, but the underlying deed and transfer-tax filing control the parties, consideration, and legal effect.How to read the recorded document ↗
- Permit · 2021-09-21AlterationsThis permit category usually covers construction, repair, alteration, addition, or occupancy work. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2023-10-16AlterationsThis permit category usually covers construction, repair, alteration, addition, or occupancy work. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- L&I violation · 2019-07-01CAL LO (Commercial Activity License required)Philadelphia Code §19-2602(1) requires a Commercial Activity License before conducting business in the city.How L&I violations and orders work ↗
- Inspection · 2019-07-01HCEU 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 ↗
- L&I violation · 2020-10-01CAL LICENSE OBTAINA 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 · 2019-08-20HCEU 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 · 2020-10-02L&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 · 2020-12-16L&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 ↗
- License · 2016-08-15ARIAGNI GROCERY STORE INC: Food Preparing and Serving business license initially issuedA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
- License · 2014-08-15LUIS A VAZQUEZ: Rental landlord or residential registration initially issuedA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
- License · 2022-04-29LUIS A VAZQUEZ: Rental landlord or residential registration marked inactiveA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
- License · 2004-06-07LUIS A VAZQUEZ: Food Preparing and Serving business license initially issuedA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
- License · 2013-04-30LUIS A VAZQUEZ: Food Preparing and Serving business license marked inactiveA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
Property assessmentAssessmentDeed / 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 record14 events · exact dates, newest first
- PermitAlterations
- LicenseLUIS A VAZQUEZ: Rental landlord or residential registration marked inactive
- PermitAlterations
- InspectionL&I investigation
- InspectionL&I investigation
- L&I violationCAL LICENSE OBTAIN
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- L&I violationCAL LO (Commercial Activity License required)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- LicenseARIAGNI GROCERY STORE INC: Food Preparing and Serving business license initially issued
- LicenseLUIS A VAZQUEZ: Rental landlord or residential registration initially issued
- LicenseLUIS A VAZQUEZ: Food Preparing and Serving business license marked inactive
- LicenseLUIS A VAZQUEZ: Food Preparing and Serving business license initially issued
- Deed / saleDeed / sale $66K
Verify the public record
Property tax
$1,688/year estimated property tax
2026 taxable assessment $120,600 × 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 $155,900. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 8711930502026 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.
What it is
Mixed-use
Row W/Off Str 2 Sty Mason
Owner
Individual owner on record
Individual name redacted
$ / sq ft
$116
assessed value ÷ interior sqft
Interior area
1,344 sqft
Lot size
783 sqft
Built
1935
Zoning
CMX1
Block context
4500 block of Knorr St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 4535 Knorr St · 4533 Knorr St
L&I license dates · data through Jul 25, 2026
Business licenses at this address Latest pull
What L&I has registered at this OPA parcel, newest initial license date first.
ARIAGNI GROCERY STORE INCActive
Food Preparing and Serving · Initial issue date Aug 15, 2016 · Filed expiration Aug 14, 2026
LUIS A VAZQUEZInactive
Food Preparing and Serving · Initial issue date Jun 7, 2004 · Terminal license date Apr 30, 2013
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
LUIS A VAZQUEZInactive
Rental · Initial issue date Aug 15, 2014 · Terminal license date Apr 29, 2022
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 14 dated rows
- PermitAlterations
Permit PP-2023-013808 · Issued
REPAIR/REPLACE 3/4" BACKFLOW DEVICE.
- License terminal eventLUIS A VAZQUEZ: Rental landlord or residential registration marked inactive
License 638725 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- PermitAlterations
Permit PP-2021-017243 · Completed
Replacing existing curb trap FAI
- InvestigationL&I investigation
Case CF-2020-069135 · PASSED
The cited inspection visit was marked passed.
- InvestigationL&I investigation
Case CF-2020-069135 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationCAL LICENSE OBTAIN
Case CF-2020-069135 · Violation VI-2020-039613 · Code 19-2602(1) · COMPLIED
Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 693520 · 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.
- ViolationCAL LO (Commercial Activity License required)
Case 693520 · Violation 5094250 · Code 19-2602.1/1 · COMPLIED
Philadelphia Code §19-2602(1) requires a Commercial Activity License before conducting business in the city. City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 693520 · 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.
- License issue eventARIAGNI GROCERY STORE INC: Food Preparing and Serving business license initially issued
License 711227 · Active
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventLUIS A VAZQUEZ: Rental landlord or residential registration initially issued
License 638725 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- License terminal eventLUIS A VAZQUEZ: Food Preparing and Serving business license marked inactive
License 208045 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventLUIS A VAZQUEZ: Food Preparing and Serving business license initially issued
License 208045 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$66K transfer
2003
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, 1:37 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)