2026 taxable assessment $820,100 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $817,300; it is not the 2026 billed-year value.
House report
1730 Catharine St
3 bd · 2 ba · 3 stories · 2,136 sqft · RSA5 · built 1915
Owner-occupancy signal · assessed $820K (2026) · 2027 OPA assessment $817K · sold 2×. On the 1700 block of Catharine St.
BlockReport AI · cited public records
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Property summary
Assessment$820,1002026 OPA assessment · 2027: $817,300
Last sale$620KRecorded 2013
Est. tax bill$11,480/year2026 taxable assessment × 1.3998%
Tax delinquencyNo 2022 matchNot proof account is current
Permits12Every fetched City permit
Violations0 openNo historical match in fetched records
“Open” reflects records available then historical records keep their source dates estimates are labeled
Question or correct this record
BlockReport can explain a discrepancy, but it cannot rewrite an official City record. Use the agency that owns the underlying fact:
Property tax
The estimate, live balance, and back-tax record are different.
BlockReport can calculate the annual tax from the City’s taxable assessment. Payments, credits, interest, and a current amount due live separately in Philadelphia Tax Center.
A Tax Center balance is net of bills, payments, credits, interest, and adjustments. A credit—or an amount due—is not automatically “back taxes.”
OPA 3011351002026 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.”
What stands out
From the public recordNew construction
Record summarynew construction appears in a 2013 permit, followed by a recorded transfer of $620K in 2013.
View supporting records →What to do with this
The record, translated into moves — what a buyer, the owner, and a landlord would each want to check next under Philadelphia's actual rules.
If you’re buying
Built 1915: lead rules apply
Federal law requires a lead-paint disclosure at sale for any pre-1978 home. If it will be rented, Philadelphia also requires a lead-safe or lead-free certificate before a rental license can issue.
Zoned RSA5: one household by right
Single-family rowhouse (the classic Philly row). Converting to a duplex or apartments needs a use variance the zoning board rarely grants — Pennsylvania courts require a physical hardship of the lot itself, and economics alone do not qualify.
If you own it
$1,399/yr may be unclaimed
This home reads owner-occupied but shows no Homestead Exemption, which removes $100,000 from the taxable assessment (worth up to $1,399/yr). Applying through the City is free and takes minutes.
Derived from the fetched property records and linked City guidance as of 2026. Assessment treatment is not a substitute for an exemption approval, live balance, title report, license, occupancy certificate, or inspection. Informational only — not legal, tax, or investment advice.
Assessment and tax history
Every fetched annual City assessment for this house, compared with its block and ZIP. The figures show assessment change, the billed-year tax estimate, dated tax records, and recorded transfers. They do not estimate market appreciation or investment return.
Assessed value
$820,100
2026 billed-year assessment · 2027: $817,300 · built 1915
Price / sq ft
$383
block $406 · below block
Assessment change
+59%
+4%/yr since 2016 · 2027 0% vs 2026
Est. tax bill / yr
$11,480
1.4% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Times sold
2
Assessment vs. the block and ZIP · every dated City record marked on the line
- OPA assessment · 2016$513K 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$513K 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$513K 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$720K 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$704K 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$704K 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$704K 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$795K 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$795K 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$820K 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$820K 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$817K 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 · 2013Deed / sale $620KA 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 · 2012-12-24Major 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 · 2013-02-21ZoningThis 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 · 2013-03-19AdditionThis 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 · 2013-04-16MechanicalThis 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 · 2013-04-29PlumbingThis 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 · 2013-05-10ElectricalThis 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 · 2019-01-22AlterationThis 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 · 2021-05-28New construction, addition, GFA changeThis 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 · 2021-10-04Addition and/or AlterationThis 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 · 2023-02-23AlterationsThis 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 · 2023-02-24Addition and/or AlterationThis 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 ↗
Property assessmentBlock median & rangeZIP 19146 medianAssessmentDeed / salePermit
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 record12 events · exact dates, newest first
- PermitAddition and/or Alteration
- PermitAlterations
- PermitAddition and/or Alteration
- PermitNew construction, addition, GFA change
- PermitAlteration
- PermitElectrical
- PermitPlumbing
- PermitMechanical
- PermitAddition
- PermitZoning
- Deed / saleDeed / sale $620K
- PermitMajor alteration
The paper trail
New constructionnew construction appears in a 2013 permit, followed by a recorded transfer of $620K in 2013.
- 2013 ZoningPermitAdditionPermitMechanicalPermitPlumbingPermitElectricalPermit$620KTransfer
- 2019 AlterationPermit
- 2021 New construction, addition, GFA changePermitAddition and/or AlterationPermit
- 2023 AlterationsPermitAlterationsPermitAddition and/or AlterationPermit
Records behind the chart
Browse the source ledger
The chart above is the primary timeline. This drawer preserves every underlying dated row and its filed status for source-level review.
Browse 13 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
- PermitAddition and/or Alteration
Permit EP-2023-001839 · Completed
EZ Standard: Installation of 2 GFCI weatherproof receptacles as per NEC 2017 Electrical Code.
- PermitAlterations
Permit PP-2023-002489 · Completed
EZ Plumbing: Installation of kitchen sink.
- PermitAlterations
Permit PP-2023-002476 · Cancelled
EZ Plumbing: Installation of kitchen sink.
- PermitAddition and/or Alteration
Permit RP-2021-014071 · Completed
FOR THE MODIFICATION OF AN EXISTING ROOF DECK ON AN EXISTING ATTACHED STRUCTURE. NO CHANGES TO THE EXISTING ROOF DECK ACCESS STRUCTURE. SIZE AND LOCATION AS SHOWN IN THE APPLICATION/PLANS.
- PermitNew construction, addition, GFA change
Permit ZP-2021-004958 · Issued
FOR THE MODIFICATION OF AN EXISTING ROOF DECK ON AN EXISTING ATTACHED STRUCTURE. NO CHANGES TO THE EXISTING ROOF DECK ACCESS STRUCTURE. SIZE AND LOCATION AS SHOWN IN THE APPLICATION/PLANS.
- PermitAlteration
Permit 943251 · COMPLETED
REMOVE EXISTING 1 BY 3 OFF OF BAY, AND INSTALL ZINC METAL SIDING
- PermitElectrical
Permit 470548 · COMPLETED
WIRING & INSTALL 55-OUTLETS, 25-SW, 45-LGT FIX, 8-SM DET, 8-GFI OUTLETS, 7-PH & 7-TV JACKS, NEW 200AMP SERVICE HOOKUP OF ALL HEATING & A/C UNITS AS PER NEC 2008 (SFD)
- PermitPlumbing
Permit 467889 · COMPLETED
1 KITCHEN, 3 TOILETS, 3 LAVS, 2 SHOWERS, 1 WASHER BOX, PEX & PVC THROUGHOUT PA20131190150
- PermitMechanical
Permit 465576 · COMPLETED
INSTALLATION OF 1 HVAC UNIT (INCLUDING DUCTWORK/ACCESSORIES). SFD
- PermitAddition
Permit 455036 · COMPLETED
FOR THE RENOVATION OF EXISTING (3) STORY SFD WITH (3) STORY ADDITION TO REAR OF THE BUILDING, PILOT HOUSE ADDITION ON EXISTING ROOF AND ROOF DECK.
- PermitZoning
Permit 450467 · COMPLETED
FOR A (3) STORY ADDITION WITH CELLAR TO AN EXISTING (3) STORY SFD WITH CELLAR; FOR A THIRD STORY ADDITION ABOVE AN EXISTING 2 STORY PORTION; FOR A PILOT HOUSE ADDITION ENCLOSING A STAIR AND LANDING ONLY TO PROVIDE ACCESS TO A NEW ROOF DECK.; FOR A NEW ROOF DECK ABOVE THE THIRD FLOOR ROOF AND FOR NEW PROJECTED BAY AT 2ND-3RD FLOOR.
- Recorded transfer$620K transfer
2013
- PermitMajor alteration
Permit 445049 · COMPLETED
1800 SQUARE FEET OF INTERIOR ALTERATIONS - SINGLE FAMILY DWELLING - APPLICANT AGREES TO LIMIT THE CONSTRUCTION TO COMPLY WITH EZ PERMIT STANDARD FOR INTERIOR ALTERATIONS, DATED FEB. 2007. DEVIATIONS FROM THIS STANDARD WILL RESULT IN THE REVOCATION OF THIS PERMIT AND IMPOSITION OF FURTHER PENALTIES. REPLACE FRONT WALL WITH FRAME & VENEER - REMOVE EXISTING BRICK FRONT WALL, 3 STORY. FRAME NEW FRONT WALL WITH 2 X 6 STUDS AND PLYWOOD SHEATHING. NEW FRAMING TO BE STRUCTURALLY FASTENED TO EXISTING PARTY WALLS AND INSPECTED PRIOR TO STARTING BRICKWORK. FOUNDATION WALL TO EXTEND TO FIRST FLOOR AT 8 INCH WIDTH. START 4 INCH BRICK VENEER AT FIRST FLOOR LEVEL, INSTALL BRICK TIES EVERY 32 INCHES, VERTICAL AND HORIZONTAL. PHYSICALLY TIE IN EVERY 4 FEET AT ADJOINING WALL. WINDOWS AND DOOR SAME LOCATION. INSTALL CAPPING, FLASHING AND WEEP HOLES AS PER CODE REQUIREMENTS. NEW CONCRETE SLAB IN BASEMENT.
What this record suggests
The City file documents 12 permits touching kitchen work, electrical work, plumbing, roof work. 11 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
Informational only — not investment advice or a consumer report (FCRA).
The property, on paper
The city assessor's field record — the physical spec sheet behind the assessed number.
Bedrooms
3
Bathrooms
2
Stories
3
Interior
2,136 sqft
livable area
Lot
969 sqft
Basement
Full, finished
city code A
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.
Run the numbers
What owning 1730 Catharine St takes, at your price and your rate. Taxes start with an annual estimate from the City’s taxable assessment, not a current bill or balance; rent starts at the area median. Assessed value is not an asking price — set the price slider to the real one.
When this house last sold (2013) a 30-year mortgage ran about 3.98% — Freddie Mac's average that year.
Mortgage
—
P&I · 30-yr fixed
All-in monthly
—
+ taxes & insurance
Estimated cash needed
—
down + 4% planning allowance
Modeled cash flow
—
rent − shown costs · /mo
Modeled cap rate
—
modeled NOI ÷ price
Modeled cash-on-cash
—
modeled year-1 return
Scenario for orientation, not advice. Assumes a 30-year fixed loan, $1,400/yr insurance, 1% of price/yr maintenance, and buyer cash equal to the down payment plus 4%. Taxes use this parcel's taxable assessment, not a live Tax Center balance. Cash flow and returns exclude vacancy, management, utilities, HOA or condo fees, leasing costs, income tax, and unplanned capital work.
Block context
1730 Catharine St sits on the 1700 block of Catharine St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 1728 Catharine St · 1732 Catharine St
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 11, 2026, 3:44 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)