2026 assessment
$93K
OPA value, not a listing price
House report
4155 N Darien St
3 bd1 ba2 stories1,050 sqftRSA5built 1940
Property at a glanceHouse
Owner-occupancy signal
ZIP 19140 area
Hunting Park · Nicetown–Tioga
4100 block of N Darien St
Open L&I record
Open City history ↗3 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-2025-003307
IN VIOLATIONNotice Of Violation
- Exterior Area Sanitation
PM15-302.1 - Address Identification
F-505.1 - Exterior Structure Protective Treatment
PM15-304.2
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$52K 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$52K 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$52K 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$62K 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$47K 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$47K 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$47K 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$76K 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$76K 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$93K 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$93K 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$99K 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 · 2023Deed / sale $15KA 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 ↗
- L&I violation · 2014-08-08EXT A-CLEAN RUBBISH/GARBAGE (Remove rubbish or garbage from the exterior area)Remove rubbish or garbage from the exterior areaHow L&I violations and orders work ↗
- L&I violation · 2014-08-08LICENSE-RES GENERALA 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 · 2014-08-08HCEU 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 · 2021-04-19EXTERIOR AREA SANITATIONA 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 · 2021-04-19L&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 ↗
- L&I violation · 2025-01-16EXTERIOR AREA SANITATIONA 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 · 2025-01-16ADDRESS IDENTIFICATIONA 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 · 2025-01-16EXTERIOR STRUCTURE PROTECTIVE TREATMENTA 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 · 2025-01-16L&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 ↗
- Inspection · 2014-09-30HCEU 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 · 2014-12-03HCEU 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 ↗
- License · 2012-05-14NANCY NOWAKOWSKI (C/O AGENT-WELLS FARGO): Vacant Residential Property / Lot 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 · 2014-02-28NANCY NOWAKOWSKI (C/O AGENT-WELLS FARGO): Vacant Residential Property / Lot 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 · 2005-06-10RIVERA LESBIA: 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 · 2025-02-28RIVERA LESBIA: Rental landlord or residential registration marked closedA 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 19140 (Hunting Park · Nicetown–Tioga) medianAssessmentDeed / saleL&I violationInspectionLicense
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 record16 events · exact dates, newest first
- LicenseRIVERA LESBIA: Rental landlord or residential registration marked closed
- L&I violationEXTERIOR AREA SANITATION
- L&I violationADDRESS IDENTIFICATION
- L&I violationEXTERIOR STRUCTURE PROTECTIVE TREATMENT
- InspectionL&I investigation
- Deed / saleDeed / sale $15K
- L&I violationEXTERIOR AREA SANITATION
- InspectionL&I investigation
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- L&I violationEXT A-CLEAN RUBBISH/GARBAGE (Remove rubbish or garbage from the exterior area)
- L&I violationLICENSE-RES GENERAL
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- LicenseNANCY NOWAKOWSKI (C/O AGENT-WELLS FARGO): Vacant Residential Property / Lot landlord or residential registration marked inactive
- LicenseNANCY NOWAKOWSKI (C/O AGENT-WELLS FARGO): Vacant Residential Property / Lot landlord or residential registration initially issued
- LicenseRIVERA LESBIA: Rental landlord or residential registration initially issued
Flags: 3 L&I violation rows marked OPEN. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$1,298/year estimated property tax
2026 taxable assessment $92,700 × 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 $98,800. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 4333735002026 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
1,050 sqft
livable area
Lot
606 sqft
Basement
Full
city code D
Heat
Undetermined
city code H
Central air
No
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
4100 block of N Darien St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 4153 N Darien St · 4157 N Darien St
L&I license dates · data through Jul 24, 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 24, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
NANCY NOWAKOWSKI (C/O AGENT-WELLS FARGO)Inactive
Vacant Residential Property / Lot · Initial issue date May 14, 2012 · Terminal license date Feb 28, 2014
RIVERA LESBIAClosed
Rental · Initial issue date Jun 10, 2005 · Terminal license date Feb 28, 2025
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 16 dated rows
- License terminal eventRIVERA LESBIA: Rental landlord or residential registration marked closed
License 321981 · Closed
License event. Registration does not prove present operation or storefront occupancy.
- ViolationEXTERIOR AREA SANITATION
Case CF-2025-003307 · Violation VI-2025-002562 · Code PM15-302.1 · OPEN
The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.
- ViolationADDRESS IDENTIFICATION
Case CF-2025-003307 · Violation VI-2025-002559 · Code F-505.1 · OPEN
The individual violation row was marked open in the assembled City file; verify the live notice and any later inspection.
- ViolationEXTERIOR STRUCTURE PROTECTIVE TREATMENT
Case CF-2025-003307 · Violation VI-2025-002565 · Code PM15-304.2 · 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-2025-003307 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- Recorded transfer$15K transfer
2023
- ViolationEXTERIOR AREA SANITATION
Case CF-2021-029541 · Violation VI-2021-022347 · Code PM15-302.1 · CVN ISSUED
Resolution: CVN ISSUED
- InvestigationL&I investigation
Case CF-2021-029541
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 447234 · 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.
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 447234 · 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.
- ViolationEXT A-CLEAN RUBBISH/GARBAGE (Remove rubbish or garbage from the exterior area)
Case 447234 · Violation 3342818 · Code PM-302.2/2 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationLICENSE-RES GENERAL
Case 447234 · Violation 3342817 · Code PM-102.0/1 · COMPLIED
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 447234 · 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 terminal eventNANCY NOWAKOWSKI (C/O AGENT-WELLS FARGO): Vacant Residential Property / Lot landlord or residential registration marked inactive
License 564128 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventNANCY NOWAKOWSKI (C/O AGENT-WELLS FARGO): Vacant Residential Property / Lot landlord or residential registration initially issued
License 564128 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventRIVERA LESBIA: Rental landlord or residential registration initially issued
License 321981 · Closed
License event. Registration does not prove present operation or storefront occupancy.
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 25, 2026, 7:56 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)