House report
1804 Catharine St
3 bd2 ba3 stories1,971 sqftRM1built 1915
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$422K 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$422K 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$422K 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$699K 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$683K 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$683K 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$683K 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$763K 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$763K 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$878K 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$878K 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$775K 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 · 2016Deed / sale $330KA 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 $725KA 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 · 2011-07-12PlumbingThis 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 · 2013-11-05DemolitionThis 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 · 2017-02-06DemolitionThis 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 · 2017-04-19Major 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 · 2017-06-01AdditionThis 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 · 2017-06-01Zoning/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 · 2017-06-14ElectricalThis 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 · 2017-07-22MechanicalThis 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 · 2017-08-18PlumbingThis 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 ↗
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.
- PermitPlumbing
- PermitMechanical
- PermitElectrical
- PermitAddition
- PermitZoning/use
- PermitMajor alteration
- PermitDemolition
- Deed / saleDeed / sale $725K
- Deed / saleDeed / sale $330K
- PermitDemolition
- PermitPlumbing
Flags: material assessment exemption; legal basis and term unverified. Informational only. Not investment advice or a consumer report (FCRA).
Verify the public record
Property tax
$6,586/year estimated property tax
2026 taxable assessment $470,501 × 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 $774,700. It is not the 2026 billed-year value.
Payments, credits, interest, and the current amount due are maintained by the City.
OPA 3011360002026 OPA taxes $470,501 of $877,800 assessed. The assessment fields alone do not identify a program, approval date, expiration, or buyer eligibility.
See the assessment math →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 assessment exemption gap
OPA's 2026 roll shows a partial assessment exemption. The annual difference is measurable; the reason for it and what happens after a sale are not established here.
$470,501 taxable basis
$877,800 scenario basis
- Legal basis or program
- Approval or expiration date
- Treatment after a sale
- Current Tax Center balance
Show the assessment math
2026: ($877,800 assessed − $407,299 exempt) × 1.3998% ≈ $6,586/year
Full-assessment scenario: $877,800 × 1.3998% ≈ $12,287/year
Do not treat the full-assessment scenario as inevitable or assume the current relief transfers. Obtain the approval history and verify the live Tax Center account before relying on either number.
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: 1802 Catharine St · 1806 Catharine St
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.
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 11 dated rows
- PermitPlumbing
Permit 809781 · COMPLETED
INSTALL 2 TOILETS 2 LAVS,2 TUBS,1 KITCHEN,1 WASHER,1"WATER SERVICE,HOUSE TRAP,HOUSE TRAP AND FRESH AIR INLET-PA1#20172300370-"SELF-CERTIFICATION'S ARE NO LONGER PERMITTED" - "ALL EXCAVATIONS AND PLUMBING TRENCHES IN EXCESS OF 5 FEET IN DEPTH MUST HAVE APPROVED SHORING IN PLACE AT THE TIME OF INSPECTION"
- PermitMechanical
Permit 802195 · COMPLETED
INSTALL (1) HVAC SYSTEM WITH DUCTWORK. (SFD)
- PermitElectrical
Permit 791861 · COMPLETED
UPGRADED TO 200AMP SERVICE WITH PANEL & REWIRE THROUGHOUT WITH ALL REQUIRED CIRCUITS PROTECTED BY ARC FAULT CIRCUIT BREAKERS AS PER NEC 2008 SOUTH DISTRICT
- PermitAddition
Permit 773998 · COMPLETED
FOR THE PARTIAL DEMOLITION OF AN EXISTING 3 STORY ATTACHED STRUCTURE, AND THE COMPLETE RENOVATION OF THE EXISTING STRUCTURE, WITH A PARTIAL THIRD STORY ADDITION TO EXISTING TWO STORY (AT REAR). NEW ROOF DECK ACCESSED BY PILOT HOUSE, SIZE AND LOCATION AS PER PLANS. ALL DEMOLITION ACTIVITY TO BE PERFORMED UTILIZING HAND TOOLS ONLY, NO POWER DRIVEN, GAS, ELECTRIC OR OTHER EQUIPMENT IS PERMITTED. NO NEW FOOTING OR FOUNDATION WORK IS PERMITTED.
- PermitZoning/use
Permit 773994 · COMPLETED
PARTIAL DEMOLITION OF THREE STORY STRUCTURE AND CONSTRUCT THREE STORY ADDITION AT REAR.
- PermitMajor alteration
Permit 765592 · COMPLETED
APPLICATION IS FOR UNDERPINNING OF FOUNDATION TO LOWER THE BASEMENT FLOOR IN AN EXISTING STRUCTURE AS PER ATTACHED PLAN OF A SINGLE FAMILY HOUSEHOLD LIVING. CONTRACTOR SHALL PROVIDE SHORING TO SAFEGUARD ADJACENT PROPERTIES PRIOR TO EXCAVATION AND ENGINEER SHALL BE AT SITE AT THE TIME OF EXCAVATION
- PermitDemolition
Permit 757165 · COMPLETED
INTERIOR DEMO OF NON-LOAD BEARING WALLS ONLY. NO STRUCTURAL WORK ON THIS PERMIT.
- Recorded transfer$725K transfer
2017
- Recorded transfer$330K transfer
2016
- PermitDemolition
Permit 504345 · COMPLETED
INTERIOR DEMOLITION, NON-LOAD BEARING PARTITIONS ONLY(SFD)
- PermitPlumbing
Permit 352437 · COMPLETED
SOIL STACK,REMOVE AND REPLACE TOILET
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)
