2026 taxable assessment $672,100 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $762,400; it is not the 2026 billed-year value.
House report
411 S 13th St
3 stories · 2,160 sqft · RM1 · built 1900
Owner-occupancy signal · assessed $772K (2026) · 2027 OPA assessment $762K · sold 2×. On the 400 block of S 13th St.
BlockReport AI · cited public records
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Property summary
Assessment$772,1002026 OPA assessment · 2027: $762,400
Last sale$675KRecorded 2011
Est. tax bill$9,408/year2026 OPA · Homestead-adjusted
Tax delinquencyNo 2022 matchNot proof account is current
Permits10Every fetched City permit
Violations0 open2 historical across 2 cases
“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 0531517002026 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.”
What stands out
From the public recordPermit on record
Record summaryPlumbing permit recorded in 2018.
View supporting records →"Built 1900" is usually a placeholder
Record summaryPhiladelphia records use 1900 as a stand-in when the real construction year was never documented. Treat the age as unknown, not as 120+ years.
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 1900: 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.
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
$772,100
2026 billed-year assessment · 2027: $762,400 · built 1900
Price / sq ft
$353
block $368 · in line w/ block
Assessment change
+51%
+4%/yr since 2016 · 2027 -1% vs 2026
Est. tax bill / yr
$9,408
1.22% 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$504K 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$504K 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$504K 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$666K 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$689K 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$689K 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$689K 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$705K 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$705K 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$772K 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$772K 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$762K 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 ↗
- Permit · 2015-03-06Major 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 · 2017-09-05Major 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 · 2017-03-10AlterationThis 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 · 2018-06-08ZoningThis 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 · 2018-06-08AdditionThis 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 · 2018-06-27ElectricalThis 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 · 2018-10-15MechanicalThis 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 · 2018-10-16PlumbingThis 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 ↗
- L&I violation · 2009-06-05HIST 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 · 2018-10-18CONSTRUCTION DOCUMENTSA 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 · 2009-07-10BP_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 · 2010-01-20BP_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 · 2010-03-26PRECOURT (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 · 2018-09-17BP_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 19147 medianAssessmentL&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 record14 events · exact dates, newest first
- L&I violationCONSTRUCTION DOCUMENTS
- PermitPlumbing
- PermitMechanical
- InspectionBP_BLDG
- PermitElectrical
- PermitZoning
- PermitAddition
- PermitMajor alteration
- PermitAlteration
- PermitMajor alteration
- InspectionPRECOURT (likely: pre-court compliance inspection)
- InspectionBP_BLDG
- InspectionBP_BLDG
- L&I violationHIST DIST-WINDOWS, DOORS ETC
The paper trail
Permit on recordPlumbing permit recorded in 2018.
- 2015 Major alterationPermit
- 2017 Major alterationPermitAlterationPermitMajor alterationPermitMajor alterationPermit
- 2018 ZoningPermitAdditionPermitElectricalPermitL&I violationL&IInspection passedL&I visitMechanicalPermitPlumbingPermit
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 15 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
- ViolationCONSTRUCTION DOCUMENTS
Case 851809 · Violation 4846823 · Code A-302.5 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- PermitPlumbing
Permit 913068 · COMPLETED
ROUGH AND FINISH FOR KITCHEN SINK, DISHWASHER & DISPOSAL, AND ROUGH AND FINISH TOILET, 2- LAV SINKS AND 1- SHOWER
- PermitMechanical
Permit 916858 · COMPLETED
SUPPLY AND INSTALL MITSUBISHI 3 ONE DUCTLESS HEAT PUMP FOR SECOND AND THIRD FLOOR. SUPPLY AND INSTALL BRYANT HEAT PUMP FOR FIRST FLOOR
- InvestigationBP_BLDG
Case 229850 · PASSED
The cited inspection visit was marked passed.
- PermitElectrical
Permit 889379 · COMPLETED
INSTALL ELECTRIC AND LIGHTING FOR NE KITCHEN AND BATHROOMS INSTALL 47 NEW RECESSED LIGHTS THROUGHOUT HOME INSTALL POWER FOR HVAC AD ALL APPLIANCES
- PermitZoning
Permit 851801 · COMPLETED
ERECT NEW ROOF DECK AND ACCESS PILOT HOUSE ON EXISTING THREE STORY SINGLE FAMILY DWELLING.
- PermitAddition
Permit 851809 · COMPLETED
INTERIOR RENOVATIONS AND CONSTRUCTION OF ROOF DECK WITH ACCESS PILOT HOUSE (FOR STAIRS AND LANDING ONLY).
- PermitMajor alteration
Permit 801175 · COMPLETED
INSTALL NEW WINDOWS AND DECORATIVE PIECES PER ATTACHED PLAS AS APPROVED BY PHILADELPHIA HISTORICAL COMMISSION FOR FRONT OF THE HOUSE (DOOR AND WINDOW INSTALL ON SIDE OF HOUSE COVERED BY PERMIT 784117 ISSUES
- PermitMajor alteration
Permit 784117 · COMPLETED
REMOVE STUCCO AND REPOINT BRICK, INSTALL NEW WINDOW & DOOR, STEPS & RAILING PER ATTACHED PLAN AS APPROVED BY PHILADELPHIA HISTORICAL COMMISSION OF A SINGLE FAMILY ATTACHED STRUCTURE.SHOP DRAWINGS OF STEPS, DOORS & WINDOW TO BE SUBMITTED TO PHC FOR APPROVAL PRIOR TO FABRICATION.
- PermitAlteration
Permit 766082 · COMPLETED
REMOVAL OF STUCCO ON FACADE AS PER HISTORIC APPROVAL
- PermitMajor alteration
Permit 744113 · COMPLETED
INSTALLATION OF STAR BOLTS AND REPAIR OF CRACKED BRICKS AND MORTAR PER PHC APPROVAL. NO WORK TO WINDOWS OR DOORS ON THE PERMIT
- PermitMajor alteration
Permit 588647 · COMPLETED
REPLACEMENT OF EXTERIOR WINDOWS, RESTORATION OF WOOD TRIMWORK AND MOLDING, AND VARIOUS WORK AS PER PLANS.
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 201841 · CLOSED
A follow-up before or during enforcement escalation; confirm the case sequence in the City file. City marked the record closed; open the case for the closing reason.
- InvestigationPRECOURT (likely: pre-court compliance inspection)
Case 201841 · 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.
- ViolationHIST DIST-WINDOWS, DOORS ETC
Case 201841 · Violation 1621781 · Code PM-704.2/4 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
What this record suggests
The City file documents 10 permits touching kitchen work, bathroom work, electrical work, plumbing. 10 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.
Stories
3
Interior
2,160 sqft
livable area
Lot
790 sqft
Basement
Partial
city code H
Heat
Hot water / radiators
city code B
Central air
No
Exterior condition
Average
city code 4
Above averageBelow average
Interior condition
Average
city code 4
Above averageBelow average
Quality grade
C+
assessor's grade
ABCDE
Zoning
RM1
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Where the record looks off
Places where the city's own paperwork disagrees with itself. These are flags on the data — not problems with the property.
"Built 1900" is usually a placeholder
Philadelphia records use 1900 as a stand-in when the real construction year was never documented. Treat the age as unknown, not as 120+ years.
Run the numbers
What owning 411 S 13th 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 (2011) a 30-year mortgage ran about 4.45% — 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
411 S 13th St sits on the 400 block of S 13th St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 409 S 13th St · 413 S 13th 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, 3:21 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)