2026 assessment
$234K
OPA value, not a listing price
House report
2003 Knorr St
3 bd1 ba2 stories1,174 sqftRSA5built 1950
Property at a glanceHouse
Individual, other or unknown mailing address
ZIP 19149 area
Mayfair
2000 block of Knorr St
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.
- OPA assessment · 2016$126K 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$126K 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$126K 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$133K 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$138K 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$138K 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$138K 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$188K 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$188K 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$234K 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$234K 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$232K 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 · 2001Deed / sale $73KA 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 ↗
- Deed / sale · 2007Deed / sale $145KA 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 · 2012-01-19PlumbingThis permit category usually covers water, drainage, fixtures, or other plumbing 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 · 2009-07-18CLIP 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 · 2009-07-18LICENSE - RENTAL PROPERTYA 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 · 2009-07-18HIGH WEEDS-CUTA 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 · 2010-01-15RUBBISH/GARBAGE EXTERIOR-OWNERA 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 · 2010-01-15CLIP 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 · 2012-10-10HIGH WEEDS-CUTA 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 · 2012-10-10CLIP 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 · 2025-04-30EXTERIOR STRUCTURE ROOF DRAINAGEA 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 · 2025-04-30EXTERIOR AREA MOTOR VEHICLE WITHIN THE PROPERTY LINEA 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 · 2025-04-30L&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 ↗
- L&I violation · 2025-10-02EXTERIOR AREA WEEDSA 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 · 2025-10-02L&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 · 2006-05-02HCEU 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 · 2006-05-17HCEU 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 · 2025-10-29L&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 · 2012-05-23ROBERT HAMILTON: 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 · 2017-04-29ROBERT HAMILTON: 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 ↗
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 record20 events · exact dates, newest first
- InspectionL&I investigation
- L&I violationEXTERIOR AREA WEEDS
- InspectionL&I investigation
- L&I violationEXTERIOR STRUCTURE ROOF DRAINAGE
- L&I violationEXTERIOR AREA MOTOR VEHICLE WITHIN THE PROPERTY LINE
- InspectionL&I investigation
- LicenseROBERT HAMILTON: Rental landlord or residential registration marked inactive
- L&I violationHIGH WEEDS-CUT
- L&I violationCLIP VIOLATION NOTICE
- LicenseROBERT HAMILTON: Rental landlord or residential registration initially issued
- PermitPlumbing
- L&I violationRUBBISH/GARBAGE EXTERIOR-OWNER
- L&I violationCLIP VIOLATION NOTICE
- L&I violationCLIP VIOLATION NOTICE
- L&I violationLICENSE - RENTAL PROPERTY
- L&I violationHIGH WEEDS-CUT
- Deed / saleDeed / sale $145K
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- Deed / saleDeed / sale $73K
Flags: 2 open L&I violations. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$3,274/year estimated property tax
2026 taxable assessment $233,900 × 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 $231,500. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 5420075002026 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
1,174 sqft
livable area
Lot
2,191 sqft
Basement
Partial, semi-finished
city code F
Heat
Forced hot air
city code A
Garage
1 space
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
Average
city code 4
Above averageBelow average
Quality grade
C
assessor's grade
ABCDE
Zoning
RSA5
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
2000 block of Knorr St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 2001 Knorr St · 2005 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.
No L&I business license is on record at this address in data through Jul 25, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
ROBERT HAMILTONInactive
Rental · Initial issue date May 23, 2012 · Terminal license date Apr 29, 2017
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 20 dated rows
- InvestigationL&I investigation
Case CF-2025-109231 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationEXTERIOR AREA WEEDS
Case CF-2025-109231 · Violation VI-2025-078376 · Code PM15-302.4 · 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-2025-109231 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationEXTERIOR STRUCTURE ROOF DRAINAGE
Case CF-2025-035405 · Violation VI-2025-026694 · Code PM15-304.7 · OPEN
- ViolationEXTERIOR AREA MOTOR VEHICLE WITHIN THE PROPERTY LINE
Case CF-2025-035405 · Violation VI-2025-026695 · Code PM15-302.8 · OPEN
- InvestigationL&I investigation
Case CF-2025-035405 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- License terminal eventROBERT HAMILTON: Rental landlord or residential registration marked inactive
License 565161 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- ViolationHIGH WEEDS-CUT
Case 354857 · Violation 2604884 · Code CP-312A · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 354857 · Violation 2604883 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- License issue eventROBERT HAMILTON: Rental landlord or residential registration initially issued
License 565161 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- PermitPlumbing
Permit 383900 · COMPLETED
REPLACE LATERAL & CURB TRAP (SINGLE FAMILY DWELLING)
- ViolationRUBBISH/GARBAGE EXTERIOR-OWNER
Case 224670 · Violation 1569056 · Code CP-305 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 224670 · Violation 1569055 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCLIP VIOLATION NOTICE
Case 207189 · Violation 1397258 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationLICENSE - RENTAL PROPERTY
Case 207189 · Violation 1397260 · Code CP-101 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationHIGH WEEDS-CUT
Case 207189 · Violation 1397259 · Code CP-312A · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- Recorded transfer$145K transfer
2007
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 61382 · 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 61382 · 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.
- Recorded transfer$73K transfer
2001
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, 2:09 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)