2026 assessment
$822K
OPA value, not a listing price
Multi-family report
4521 Chester Ave
Research this property with Analyst →6 bd4 ba3,640 sqftRTA1built 1892
Property at a glanceApartment building
Owner-occupancy signal
ZIP 19143 area
Cedar Park · Kingsessing
4500 block of Chester Ave
Assessment and City record timeline
Published City assessments for this building 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$368K 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$368K 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$368K 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$437K 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$454K 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$454K 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$454K 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$517K 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$517K 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$822K 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$822K 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$801K 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 $993KA 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 · 2002Deed / sale $2.0MA 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 · 2004Deed / sale $225KA 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 · 2005Deed / sale $482KA 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 · 2020Deed / sale $550KA 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 · 2007-08-14AlterationThis 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 · 2018-07-27FIRE ESCAPE REPORTA 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 · 2018-07-27AIU INSPA 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 · 2018-08-23PERMB- TOTAL DEMOLA 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 · 2018-08-23BP_BLDGA 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 · 2018-08-13AIU INSPA 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 · 2018-09-28BP_BLDGA 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 · 2018-10-31BP_BLDGA 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 · 2018-12-03BP_BLDGA 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 · 2019-03-06PRECOURT (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 ↗
- Inspection · 2025-01-28L&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 · 2006-04-27YOUNG SIL SONG JASON DANIELSON: 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 · 2012-12-22YOUNG SIL SONG JASON DANIELSON: 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 · 2003-04-05DREXEL PROPERTY ASSOC II (GSPM): 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 · 2004-02-29DREXEL PROPERTY ASSOC II (GSPM): 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 ↗
- Appeal · 2019-05-09Building standards appealA challenge or request reviewed through a City appeals process. Filing an appeal does not show who prevailed; read the decision, conditions, and related permit or violation.How Philadelphia L&I appeals work ↗
Property assessmentBlock median & rangeZIP 19143 (Cedar Park · Kingsessing) medianAssessmentDeed / saleL&I violationAppealPermitInspectionLicense
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 record21 events · exact dates, newest first
- InspectionL&I investigation
- Deed / saleDeed / sale $550K
- AppealBuilding standards appeal
- InspectionPRECOURT (likely: pre-court compliance inspection)
- InspectionBP_BLDG
- InspectionBP_BLDG
- InspectionBP_BLDG
- L&I violationPERMB- TOTAL DEMOL
- InspectionBP_BLDG
- InspectionAIU INSP
- L&I violationFIRE ESCAPE REPORT
- InspectionAIU INSP
- LicenseYOUNG SIL SONG JASON DANIELSON: Rental landlord or residential registration marked inactive
- PermitAlteration
- LicenseYOUNG SIL SONG JASON DANIELSON: Rental landlord or residential registration initially issued
- Deed / saleDeed / sale $482K
- LicenseDREXEL PROPERTY ASSOC II (GSPM): Rental landlord or residential registration marked inactive
- Deed / saleDeed / sale $225K
- LicenseDREXEL PROPERTY ASSOC II (GSPM): Rental landlord or residential registration initially issued
- Deed / saleDeed / sale $2.0M
- Deed / saleDeed / sale $993K
Flags: 1 zoning/board appeal on record · latest deed has shared-name parties; relationship unverified. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$10,111/year estimated property tax
2026 taxable assessment $722,300 × 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 $801,400. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 4611228552026 OPA removes $100,000 from the taxable assessment through the owner-occupant exemption.
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
6
Bathrooms
4
Interior
3,640 sqft
livable area
Lot
4,056 sqft
Basement
Full, unfinished
city code C
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
Average
city code 4
Above averageBelow average
Quality grade
B
assessor's grade
ABCDE
Zoning
RTA1
city zoning code
Zoning appeals
1
OPEN · 2019
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
4500 block of Chester Ave. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 4519 Chester Ave · 4523-31 Chester Ave
L&I license dates · data through Jul 30, 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 30, 2026.
Landlord and residential filings
These are property registrations or landlord filings, not businesses operating at this address.
YOUNG SIL SONG JASON DANIELSONInactive
Rental · Initial issue date Apr 27, 2006 · Terminal license date Dec 22, 2012
DREXEL PROPERTY ASSOC II (GSPM)Inactive
Rental · Initial issue date Apr 5, 2003 · Terminal license date Feb 29, 2004
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 21 dated rows
- InvestigationL&I investigation
Case 651082 · PASSED
The cited inspection visit was marked passed.
- Recorded transfer$550K transfer
2020
- AppealBuilding standards appeal
Appeal 37262 · OPEN
Related permit 914266 · ON 03/07/2019, THE DEPARTMENT OF LICENSES AND INSPECTIONS ISSUED A NOTICE OF REFUSAL FOR APPLICATION #914266.
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 651082 · FAILED
A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationBP_BLDG
Case 651082 · CLOSED
City marked the record closed; open the case for the closing reason.
- InvestigationBP_BLDG
Case 651082 · PASSED
The cited inspection visit was marked passed.
- InvestigationBP_BLDG
Case 651082 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationPERMB- TOTAL DEMOL
Case 651082 · Violation 211952290 · Code A-301.1/5 · CLOSED
Resolution: CLOSED - STOP PROCESSING City marked the record closed; open the case for the closing reason.
- InvestigationBP_BLDG
Case 651082 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationAIU INSP
Case 646627 · PASSED
The cited inspection visit was marked passed.
- ViolationFIRE ESCAPE REPORT
Case 646627 · Violation 4757118 · Code FC-13-101115 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationAIU INSP
Case 646627 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- License terminal eventYOUNG SIL SONG JASON DANIELSON: Rental landlord or residential registration marked inactive
License 365910 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- PermitAlteration
Permit 96100 · COMPLETED
NEW RUBBER ROOF COVERING.
- License issue eventYOUNG SIL SONG JASON DANIELSON: Rental landlord or residential registration initially issued
License 365910 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$482K transfer
2005
- License terminal eventDREXEL PROPERTY ASSOC II (GSPM): Rental landlord or residential registration marked inactive
License 223458 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$225K transfer
2004
- License issue eventDREXEL PROPERTY ASSOC II (GSPM): Rental landlord or residential registration initially issued
License 223458 · Inactive
License event. Registration does not prove present operation or storefront occupancy.
- Recorded transfer$2.0M transfer
2002
- Recorded transfer$993K 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 30, 2026, 9:40 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)