2026 assessment
$701K
OPA value, not a listing price
House report
520 N 21st St
2,160 sqftRSA5built 1920
Property at a glanceHouse
Individual, other or unknown mailing address
ZIP 19130 area
Fairmount · Spring Garden
500 block of N 21st 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$539K 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$539K 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$539K 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$544K 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$562K 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$562K 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$562K 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$651K 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$651K 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$701K 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$701K 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$742K 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 · 2006Deed / sale $340KA 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 · 2014Deed / sale $250KA 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 · 2023Deed / sale $610KA 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 · 2007-02-28AlterationThis 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 · 2007-06-05AlterationThis 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 ↗
- Inspection · 2007-06-05BP_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 ↗
- Permit · 2007-11-05MechanicalThis 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 · 2007-05-02PERMB- INSTALL HVAC SYSA 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 · 2007-05-03HIST DIST-WINDOWS, DOORS ETCA 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 · 2007-05-03DA-HIST DIST-NO REMOV ORIGINALA 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 · 2007-05-03HIST DIST-WINDOWS, DOORS ETCA 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 · 2007-05-03BP_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 · 2007-05-03BP_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 · 2007-05-01BP_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 · 2007-06-12BP_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 · 2007-06-12BP_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 · 2007-07-02BP_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 · 2007-07-23BP_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 · 2007-08-20BP_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 · 2007-09-18BP_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 · 2007-10-25BP_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 · 2007-10-30BP_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 · 2008-01-03PRECOURT (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 ↗
Property assessmentBlock median & rangeZIP 19130 (Fairmount · Spring Garden) medianAssessmentDeed / saleL&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 record23 events · exact dates, newest first
- Deed / saleDeed / sale $610K
- Deed / saleDeed / sale $250K
- InspectionPRECOURT (likely: pre-court compliance inspection)
- PermitMechanical
- InspectionBP_BLDG
- InspectionBP_BLDG
- InspectionBP_BLDG
- InspectionBP_BLDG
- InspectionBP_BLDG
- InspectionBP_BLDG
- InspectionBP_BLDG
- InspectionBP_BLDG
- PermitAlteration
- InspectionBP_BLDG
- L&I violationHIST DIST-WINDOWS, DOORS ETC
- L&I violationDA-HIST DIST-NO REMOV ORIGINAL
- L&I violationHIST DIST-WINDOWS, DOORS ETC
- InspectionBP_BLDG
- InspectionBP_BLDG
- L&I violationPERMB- INSTALL HVAC SYS
- InspectionBP_BLDG
- PermitAlteration
- Deed / saleDeed / sale $340K
Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$9,814/year estimated property tax
2026 taxable assessment $701,100 × 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 $741,500. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 1511239002026 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.
Interior
2,160 sqft
livable area
Lot
1,205 sqft
Basement
Full
city code D
Heat
Forced hot air
city code A
Central air
Yes
Exterior condition
Above average
city code 3
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
500 block of N 21st St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 518 N 21st St · 522 N 21st St
L&I licenses checked through Jul 29, 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 23 dated rows
- Recorded transfer$610K transfer
2023
- Recorded transfer$250K transfer
2014
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 111103 · PASSED
A follow-up before or during enforcement escalation; confirm the case sequence in the City file. The cited inspection visit was marked passed.
- PermitMechanical
Permit 113546 · COMPLETED
INSTAL NEW HEATER/AC IN BASEMENT OF EXISITNG HOME. CONDNSOR LOCATED IN REAR SIDE YARD NOT VISIBLE FROM THE STREET
- InvestigationBP_BLDG
Case 111103 · CLOSED
City marked the record closed; open the case for the closing reason.
- InvestigationBP_BLDG
Case 111103 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationBP_BLDG
Case 111103 · PASSED
The cited inspection visit was marked passed.
- InvestigationBP_BLDG
Case 111103 · PASSED
The cited inspection visit was marked passed.
- InvestigationBP_BLDG
Case 111103 · PASSED
The cited inspection visit was marked passed.
- InvestigationBP_BLDG
Case 111103 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationBP_BLDG
Case 111464 · PASSED
The cited inspection visit was marked passed.
- InvestigationBP_BLDG
Case 111467 · PASSED
The cited inspection visit was marked passed.
- PermitAlteration
Permit 78868 · COMPLETED
INSTALL 6 WINDOWS IN FRONT OF BUILDING PER HISTORICAL COMMISION APPROVAL
- InvestigationBP_BLDG
Case 111103 · PASSED
The cited inspection visit was marked passed.
- ViolationHIST DIST-WINDOWS, DOORS ETC
Case 111464 · Violation 567401 · Code PM-704.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationDA-HIST DIST-NO REMOV ORIGINAL
Case 111467 · Violation 562637 · Code PM-704.2/2 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- ViolationHIST DIST-WINDOWS, DOORS ETC
Case 111467 · Violation 562638 · Code PM-704.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationBP_BLDG
Case 111464 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationBP_BLDG
Case 111467 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationPERMB- INSTALL HVAC SYS
Case 111103 · Violation 718383 · Code A-301.1/46 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationBP_BLDG
Case 111103 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- PermitAlteration
Permit 58838 · COMPLETED
APPLY 1/2" DRYWALL TO EXISTING PARTITIONS AND CEILINGS THROUGHOUT (NO NEW PARTITIONS).INSTALL HARDWIRE SMOKE DETECTORS ONE ON EVERY LEVEL AND ONE IN EVERY SLEEPING ROOM. ALL SMOKE DETECTORE TO INTERCONNECTED WITH A BATTERY BACKUP
- Recorded transfer$340K transfer
2006
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, 3:57 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)