2026 assessment
$488K
OPA value, not a listing price
Mixed-use property report
3950 Lancaster Ave
3,112 sqftCMX2built 1915
Property at a glanceApartment building
3950 Lancaster LLC
2027 published assessment
$545K
Future roll, not the current tax bill
Location
3900 block of Lancaster Ave
ZIP 19104
Neighborhood area
University City · West Powelton
Approximate · based on ZIP 19104
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 $544,600. It is not yet the billed-year tax basis.
- OPA assessment · 2016$310K 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$310K 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$313K 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$323K 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$326K 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$326K 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$326K 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$428K 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$428K 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$488K 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$488K 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$545K 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 · 2008Deed / sale $175KA 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 · 2009Deed / sale $300KA 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 · 2015Deed / sale $320KA 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 · 2017Deed / sale $369KA 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 · 2019Deed / sale $435KA 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 · 2026-03-16Addition and/or AlterationThis 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 · 2014-06-21AFDS-REQD EXIST MIX RES/NON-RA 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 · 2014-06-21HCEU 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 · 2014-08-01HCEU 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 ↗
- Inspection · 2014-09-08HCEU 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 ↗
- Inspection · 2015-01-28PRECOURT (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 ↗
- License · 2020-10-013950 LANCASTER LLC: 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 · 2019-02-22JENNIE T NGUYEN: 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 · 2020-04-21JENNIE T NGUYEN: 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 · 2017-07-05YIFEI SUN: 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 · 2018-09-02YIFEI SUN: 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 · 2011-10-27WARREN ST LLC (SEAN STANZAK): 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 · 2016-04-29WARREN ST LLC (SEAN STANZAK): 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 · 2006-03-03PATRICIA BLACK: 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 · 2011-08-08PATRICIA BLACK: 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 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 record20 events · exact dates, newest first
- PermitAddition and/or Alteration
- License3950 LANCASTER LLC: Rental landlord or residential registration initially issued
- LicenseJENNIE T NGUYEN: Rental landlord or residential registration marked inactive
- LicenseJENNIE T NGUYEN: Rental landlord or residential registration initially issued
- Deed / saleDeed / sale $435K
- LicenseYIFEI SUN: Rental landlord or residential registration marked inactive
- LicenseYIFEI SUN: Rental landlord or residential registration initially issued
- Deed / saleDeed / sale $369K
- LicenseWARREN ST LLC (SEAN STANZAK): Rental landlord or residential registration marked inactive
- InspectionPRECOURT (likely: pre-court compliance inspection)
- Deed / saleDeed / sale $320K
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- L&I violationAFDS-REQD EXIST MIX RES/NON-R
- InspectionHCEU INSP (Housing Code Enforcement Unit inspection)
- LicenseWARREN ST LLC (SEAN STANZAK): Rental landlord or residential registration initially issued
- LicensePATRICIA BLACK: Rental landlord or residential registration marked inactive
- Deed / saleDeed / sale $300K
- Deed / saleDeed / sale $175K
- LicensePATRICIA BLACK: Rental landlord or residential registration initially issued
Verify the public record
Property tax
$6,827/year estimated property tax
2026 taxable assessment $487,700 × 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 $544,600. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 8711159502026 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
Apartment building, recorded in the City's mixed-use category. The public record and owner trail follow.
What it is
Apartment building
Str/Off+Apt 3 Sty Masonry
Owner
3950 Lancaster LLC
$ / sq ft
$175
assessed value ÷ interior sqft
Corridor
40th and Lancaster
city commercial corridor
Licensed units
4
active rental license
Interior area
3,112 sqft
Lot size
1,900 sqft
Built
1915
Zoning
CMX2
Recorded owner
Who's behind it
3950 Lancaster LLC · corporate / LLC owner
• Tax bills mail to 3154 Richmond St, Philadelphia PA, 19124
• Holds an active rental license for this address
Block context
3900 block of Lancaster Ave. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 3948 Lancaster Ave · 3952-54 Lancaster Ave
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.
3950 LANCASTER LLCActive
Rental · Initial issue date Oct 1, 2020 · Filed expiration Sep 30, 2026
JENNIE T NGUYENInactive
Rental · Initial issue date Feb 22, 2019 · Terminal license date Apr 21, 2020
YIFEI SUNInactive
Rental · Initial issue date Jul 5, 2017 · Terminal license date Sep 2, 2018
WARREN ST LLC (SEAN STANZAK)Inactive
Rental · Initial issue date Oct 27, 2011 · Terminal license date Apr 29, 2016
PATRICIA BLACKInactive
Rental · Initial issue date Mar 3, 2006 · Terminal license date Aug 8, 2011
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
- PermitAddition and/or Alteration
Permit CP-2025-006068 · Completed
FOR LEVEL II ALTERATIONS TO REBUILD REAR SIDE WALL TO AN EXISTING STRUCTURE TO INCLUDE SHORING FOR FLOOR JOIST SUPPORT. FOR USE AS PREVIOUSLY APPROVED. AS PER APPROVED PLANS. *******************SEPARATE PERMITS FOR ANY OTHER WORK. ***********************************
- License issue event3950 LANCASTER LLC: Rental landlord or residential registration initially issued
License 852692 · Active
License event. Registration does not prove present operation or storefront occupancy.
- License terminal eventJENNIE T NGUYEN: Rental landlord or residential registration marked inactive
License 803419 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventJENNIE T NGUYEN: Rental landlord or residential registration initially issued
License 803419 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$435K transfer
2019
- License terminal eventYIFEI SUN: Rental landlord or residential registration marked inactive
License 744639 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- License issue eventYIFEI SUN: Rental landlord or residential registration initially issued
License 744639 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$369K transfer
2017
- License terminal eventWARREN ST LLC (SEAN STANZAK): Rental landlord or residential registration marked inactive
License 540788 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 438506 · PASSED
A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.
- Recorded transfer$320K transfer
2015
- InvestigationHCEU INSP (Housing Code Enforcement Unit inspection)
Case 438506 · 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 438506 · 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.
- ViolationAFDS-REQD EXIST MIX RES/NON-R
Case 438506 · Violation 3319735 · Code FC-907.3/21 · 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 438506 · 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 eventWARREN ST LLC (SEAN STANZAK): Rental landlord or residential registration initially issued
License 540788 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- License terminal eventPATRICIA BLACK: Rental landlord or residential registration marked inactive
License 318557 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$300K transfer
2009
- Recorded transfer$175K transfer
2008
- License issue eventPATRICIA BLACK: Rental landlord or residential registration initially issued
License 318557 · Inactive
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
- Imagery: Street photo © Google · Aerial © Esri, Maxar
Methodology & freshness
This report was assembled Jul 25, 2026, 2:25 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)