House report
1821 Catharine St
3 bd2 ba3 stories1,938 sqftRSA5built 2008
Owner-occupancy signal
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$624K 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$624K 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$624K 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$770K 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$753K 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$753K 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$753K 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$744K 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$744K 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$935K 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$935K 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$979K 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 · 2009Deed / sale $462KA 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 · 2016Deed / sale $691KA 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 $850KA 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 · 2008-07-21Zoning/useThis 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 · 2008-09-03DemolitionThis permit category usually covers partial or complete removal 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 · 2008-09-04New constructionThis 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 · 2008-10-01PlumbingThis 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 · 2008-11-06MechanicalThis 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 · 2008-11-12ElectricalThis 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 · 2017-04-07ZoningThis 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 · 2017-04-07Major 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 · 2020-04-07Wall Covering ReplacementThis 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 · 2003-04-05L_INITIALA 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 · 2003-09-14L_ADJACENTA 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 · 2003-09-14L_LATERALA 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 · 2003-09-14L_LATERALA 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 ↗
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.
- PermitWall Covering Replacement
- Deed / saleDeed / sale $850K
- PermitZoning
- PermitMajor alteration
- Deed / saleDeed / sale $691K
- Deed / saleDeed / sale $462K
- PermitElectrical
- PermitMechanical
- PermitPlumbing
- PermitNew construction
- PermitDemolition
- PermitZoning/use
- InspectionL_ADJACENT
- InspectionL_LATERAL
- InspectionL_LATERAL
- InspectionL_INITIAL
Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$11,684/year estimated property tax
2026 taxable assessment $834,700 × 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 $978,800. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 3011223002026 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.
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Block context
1800 block of Catharine St. Compare parcels, ownership, and public-record history.
See the whole block →Next door: 1819 Catharine St · 1823 Catharine St
L&I licenses checked through Jul 24, 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 15 dated rows
- PermitWall Covering Replacement
Permit GM-2020-000919 · Completed
For minor construction work at the subject property in accordance with all applicable provisions of the Philadelphia Code, all references codes and standards, and the attached EZ Standard, where included. Deviation from this standard shall result in permit revocation. A separate permit from the Philadelphia Department of Streets is required for any sidewalk and street closures. All means of pedestrian protection required at the site in accordance with the Philadelphia Building Code Chapter 33 shall be in place prior to start of work.
- Recorded transfer$850K transfer
2020
- PermitZoning
Permit 768888 · COMPLETED
FOR THE ERECTION OF ROOF DECK ACCESSED THROUGH A SPIRAL STAIRCASE ON THE THIRD FLOOR REAR OF AN EXISTING SINGLE FAMILY HOUSEHOLD LIVING, SIZE AND LOCATION AS SHOWN IN THE APPLICATION/PLAN,
- PermitMajor alteration
Permit 768891 · COMPLETED
FOR THE CONSTRUCTION OF ROOF DECK ACCESSED THROUGH THE THIRD STORY REAR OF AN EXISTING SINGLE FAMILY DWELLING AS PER PLANS,
- Recorded transfer$691K transfer
2016
- Recorded transfer$462K transfer
2009
- PermitElectrical
Permit 187614 · COMPLETED
INSTALL 200A SERVICE, 55 RECEPTACLES, 45 LIGHT FIXTURES, 30 SWITCHES, 6 GFCI RECEPTACLES, 7 120V SMOKE DETECTORS, 6 PHONE JACKS, 6 CATV JACKS & 1 A/C / HEATING UNIT.
- PermitMechanical
Permit 184490 · COMPLETED
INSTALL (2) HEAT AND COOLING SYSTEMS BOTH UNITS GAS HEAT. 1ST UNIT 1.5 TON A/C WITH 45,000 BTU GAS HEAT 2ND UNIT 2 TON A/C WITH 70,OOO BTU GAS HEAT
- PermitPlumbing
Permit 180250 · COMPLETED
2 WET BAR, 3 WC, 1 KS, 3 LAV SINKS, 2 TUB, 1 SH,, 1 LAUNDRY B, 1 HWH, HD, HT, STACK, FAI, 5" LAT, 3/4" WATER
- PermitNew construction
Permit 174692 · COMPLETED
ERECTION OF A 3 STORY ATTACHED STRUCTURE TO INCLUDE A CELLAR AND A 3RD FLOOR REAR DECK ABOVE THE 2ND STORY ROOF. USE AS A SFD.
- PermitDemolition
Permit 174698 · EXPIRED
COMPLETE DEMOLITION OF SINGLE FAMILY DWELLING
- PermitZoning/use
Permit 163141 · COMPLETED
FOR THE COMPLETE DEMOLITION OF ALL EXISTING STRUCTURES AND FOR THE ERECTION OF A THREE (3) STORY ATTACHED STRUCTURE (NTE 35' HIGH) TO INCLUDE A CELLAR AND A THIRD FLOOR REAR DECK ABOVE THE SECOND STORY ROOF, (SIZE AND LOCATION AS SHOWN IN THE APPLICATION). FOR USE AS A SINGLE FAMILY DWELLING.
- InvestigationL_LATERAL
Case 6983 · CLOSED
City marked the record closed; open the case for the closing reason.
- InvestigationL_LATERAL
Case 6983 · CANCELLED
- InvestigationL_INITIAL
Case 6983 · CLOSED
City marked the record closed; open the case for the closing reason.
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, 4:27 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)
