2026 assessment
$137K
OPA value, not a listing price
House report
4537 N 20th St
3 stories1,696 sqftRM1built 1940
Property at a glanceHouse
Owner-occupancy signal
ZIP 19140 area
Hunting Park · Nicetown–Tioga
4500 block of N 20th St
Open L&I record
Open City history ↗2 violation rows marked OPEN in 1 active case
The actual City titles, code sections, case posture, and latest recorded inspections are shown here instead of only an aggregate count.
Case CF-2025-136811
IN VIOLATIONNotice Of Violation
- Exterior Structure Decorative Features
PM15-304.8 - Exterior Structure Windows, Skylights Door Frames
PM15-304.13
OPEN is the status in the fetched L&I file, not a new inspection by BlockReport. Read the notice for the cited condition and required correction, then verify the live case with L&I.
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$33K 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$33K 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$33K 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$35K 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$55K 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$55K 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$55K 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$92K 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$92K 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$137K 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$137K 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$142K 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 ↗
- Permit · 2026-03-17AlterationsThis 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 · 2026-03-19Addition and/or AlterationsThis 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 · 2026-03-20AlterationsThis 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 · 2010-07-07OBTAIN LIC INDICATED (Obtain the license identified in the notice)The shorthand does not identify the license type; open the case notice for that detail.How L&I violations and orders work ↗
- L&I violation · 2010-07-07CAL 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 · 2010-07-07BC INSP (likely: building-code inspection)Legacy inspection shorthand; confirm the inspection type and scope in the City case file.What Philadelphia inspections check ↗
- L&I violation · 2025-12-24EXTERIOR STRUCTURE DECORATIVE FEATURESA 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 · 2025-12-24EXTERIOR STRUCTURE WINDOWS, SKYLIGHTS DOOR FRAMESA 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 · 2025-12-24L&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 · 2006-11-24HCEU 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 · 2008-12-05HCEU 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 · 2010-08-30BC INSP (likely: building-code inspection)Legacy inspection shorthand; confirm the inspection type and scope in the City case file.What Philadelphia inspections check ↗
- Inspection · 2011-12-02HCEU 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 · 2026-06-29L&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 ↗
Property assessmentBlock median & rangeZIP 19140 (Hunting Park · Nicetown–Tioga) medianAssessmentL&I violationPermitInspection
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
- InspectionL&I investigation
- PermitAlterations
- PermitAddition and/or Alterations
- PermitAlterations
- L&I violationEXTERIOR STRUCTURE DECORATIVE FEATURES
- L&I violationEXTERIOR STRUCTURE WINDOWS, SKYLIGHTS DOOR FRAMES
- InspectionL&I investigation
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionBC INSP (likely: building-code inspection)
- L&I violationOBTAIN LIC INDICATED (Obtain the license identified in the notice)
- L&I violationCAL LO (Commercial Activity License required)
- InspectionBC INSP (likely: building-code inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
Flags: 2 L&I violation rows marked OPEN · historical tax ledger through 2016 recorded $48. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$519/year estimated property tax
2026 taxable assessment $37,100 × 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 $142,300. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 1322302002026 OPA removes $100,000 from the taxable assessment through the owner-occupant exemption.
Historical delinquency sources Record found
This parcel did not match the June 2022 delinquency snapshot. That absence does not confirm the account is current today.
A separate historical parcel ledger ending in 2016 records $47.53. It is shown as historical context only.
2014$47.53 total · $31.84 principal · $6.21 interest · $2.23 penalty
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.
Stories
3
Interior
1,696 sqft
livable area
Lot
1,351 sqft
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
RM1
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
4500 block of N 20th St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 4535 N 20th St · 4539 N 20th St
L&I licenses checked through Jul 28, 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 14 dated rows
- InvestigationL&I investigation
Case CF-2025-136811 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- PermitAlterations
Permit PP-2026-003658 · Issued
REPAIR/REPLACE CT, FAI & 10ft OF MD.
- PermitAddition and/or Alterations
Permit MP-2026-001522 · Completed
EZ PERMIT DUCTWORK & WARM-AIR APPLIANCES - For the installation of New Ductwork, Registers/Grilles/Diffusers, and Warm-Air Appliances as per attached standards. Deviations from these standards require submission of construction and site plans. Replace existing boiler only, in like and kind, using existing piping/ ductwork
- PermitAlterations
Permit PP-2026-003406 · Completed
Replace Rainleader Cesspool and 60ft of Soil Pipe in Basement
- ViolationEXTERIOR STRUCTURE DECORATIVE FEATURES
Case CF-2025-136811 · Violation VI-2025-099634 · Code PM15-304.8 · OPEN
The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.
- ViolationEXTERIOR STRUCTURE WINDOWS, SKYLIGHTS DOOR FRAMES
Case CF-2025-136811 · Violation VI-2025-099635 · Code PM15-304.13 · OPEN
The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.
- InvestigationL&I investigation
Case CF-2025-136811 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 91740 · 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.
- InvestigationBC INSP (likely: building-code inspection)
Case 242174 · PASSED
Legacy inspection shorthand; confirm the inspection type and scope in the City case file. The cited inspection visit was marked passed.
- ViolationOBTAIN LIC INDICATED (Obtain the license identified in the notice)
Case 242174 · Violation 1741334 · Code LO-1 · COMPLIED
The shorthand does not identify the license type; open the case notice for that detail. City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationCAL LO (Commercial Activity License required)
Case 242174 · Violation 1741333 · 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.
- InvestigationBC INSP (likely: building-code inspection)
Case 242174 · FAILED
Legacy inspection shorthand; confirm the inspection type and scope in the City case file. The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 91740 · 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.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 91740 · 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.
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 28, 2026, 10:52 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)