2026 assessment
$611K
OPA value, not a listing price
House report
820 N 21st St
Research this property with Analyst →3 bd2 ba3 stories1,875 sqftRSA5built 1920
Property at a glanceHouse
Owner-occupancy signal
ZIP 19130 area
Fairmount · Spring Garden
800 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$475K 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$475K 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$475K 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$611K 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$632K 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$632K 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$632K 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$524K 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$524K 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$611K 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$611K 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$665K 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 · 2010Deed / sale $520KA 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 · 2010-06-09PlumbingThis permit category usually covers water, drainage, fixtures, or other plumbing 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 · 2010-06-11AlterationThis 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 · 2010-06-22ElectricalThis permit category usually covers electrical installation, alteration, replacement, or repair. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2010-06-23MechanicalThis 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 · 2010-12-21Major alterationA broad legacy permit work category for a substantial building alteration. It can include changed layouts, partitions, fixtures, finishes, structural work, or occupancy-related work, but only the approved scope and plans say what this permit actually authorized; separate trade permits may be required.What Philadelphia building permits can cover ↗
- Permit · 2010-12-21ZoningThis permit category usually covers the property’s allowed use, dimensions, occupancy, or site configuration. The approved scope—not the short category—defines what was authorized, and issuance alone does not prove completion.Philadelphia construction and repair permits ↗
- Permit · 2011-04-14AdministrativeThis 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 · 2023-01-30AlterationsThis 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 · 2007-02-02PERMB- CONST ADDITIONA 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 · 2007-02-02BP_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 ↗
- L&I violation · 2010-10-26PERMB- OUTDOOR DECKA 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 · 2007-03-05BP_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 ↗
- Inspection · 2007-03-19BP_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 · 2007-04-10BP_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 · 2007-05-02BP_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 · 2007-06-27PRECOURT (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 · 2007-08-01PRECOURT (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 · 2010-10-25BP_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 · 2010-10-25PRECOURT (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 · 2010-12-03BP_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 · 2010-12-22BP_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 ↗
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
- PermitAlterations
- PermitAdministrative
- InspectionBP_BLDG
- PermitMajor alteration
- PermitZoning
- InspectionBP_BLDG
- L&I violationPERMB- OUTDOOR DECK
- InspectionBP_BLDG
- InspectionPRECOURT (likely: pre-court compliance inspection)
- PermitMechanical
- PermitElectrical
- PermitAlteration
- PermitPlumbing
- Deed / saleDeed / sale $520K
- InspectionPRECOURT (likely: pre-court compliance inspection)
- InspectionPRECOURT (likely: pre-court compliance inspection)
- InspectionBP_BLDG
- InspectionBP_BLDG
- InspectionBP_BLDG
- InspectionBP_BLDG
- InspectionBP_BLDG
- L&I violationPERMB- CONST ADDITION
- InspectionBP_BLDG
Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$7,150/year estimated property tax
2026 taxable assessment $510,800 × 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 $665,400. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 1511273002026 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
3
Bathrooms
2
Stories
3
Interior
1,875 sqft
livable area
Lot
1,192 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
Above average
city code 3
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
800 block of N 21st St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 818 N 21st St · 822 N 21st St
L&I licenses checked through Jul 25, 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
- PermitAlterations
Permit PP-2023-001270 · Expired
REPAIR/REPLACE Curb trap, fresh air inlet
- PermitAdministrative
Permit 335646 · COMPLETED
OWNER HAS REQUESTED A CERTIFICATE OF OCCUPANCY FOR PROPERTY
- InvestigationBP_BLDG
Case 256262 · PASSED
The cited inspection visit was marked passed.
- PermitMajor alteration
Permit 317630 · COMPLETED
LEGALIZE DECK ON THE SECOND FLOOR REAR 12' X 13'
- PermitZoning
Permit 317623 · COMPLETED
REPLACE NEW DECK ON THE SECOND FLOOR REAR
- InvestigationBP_BLDG
Case 256262 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationPERMB- OUTDOOR DECK
Case 256262 · Violation 1908640 · Code A-301.1/10 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- InvestigationBP_BLDG
Case 256262 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 100481 · 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 287041 · COMPLETED
INSTALL 2 HVAC UNITS WITH ASSOCIATED DUCTWORK(SFD)
- PermitElectrical
Permit 286824 · COMPLETED
REWIRE 1ST, 2ND AND 3RD FLOOR AS PER 2008 NEC (CC DIST)
- PermitAlteration
Permit 281226 · COMPLETED
INSTALL NEW INTERIOR WALLS AND CEILING IN FRONT OF EXISTING WALLS AND CEILING SIDE REAR BAY INSTALL NEW WINDOWS AND DOORS THROUGHOUT
- PermitPlumbing
Permit 284173 · COMPLETED
REPLACING FIXTURES, 3 WC, 1SH, 4 LAV,1KS, 1 W BOX
- Recorded transfer$520K transfer
2010
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 100481 · 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.
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 100481 · 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 100481 · CLOSED
City marked the record closed; open the case for the closing reason.
- InvestigationBP_BLDG
Case 100481 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationBP_BLDG
Case 100481 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationBP_BLDG
Case 100481 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- InvestigationBP_BLDG
Case 100481 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
- ViolationPERMB- CONST ADDITION
Case 100481 · Violation 642313 · Code A-301.1/2 · COMPEXCP
- InvestigationBP_BLDG
Case 100481 · FAILED
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 26, 2026, 4:21 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)