2026 taxable assessment $652,000 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $701,700; it is not the 2026 billed-year value.
Multi-family report
509 S 13th St
4 stories · 2,703 sqft · RM1 · built 1920
Owner-occupancy signal · assessed $752K (2026) · 2027 OPA assessment $702K · 2 licensed units. On the 500 block of S 13th St in ZIP 19147.
BlockReport AI · cited public records
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Property summary
Assessment$752,0002026 OPA assessment · 2027: $701,700
Last sale$117KRecorded 1994
Est. tax bill$9,127/year2026 OPA · Homestead-adjusted
Tax delinquencyNo 2022 matchNot proof account is current
Permits7Every fetched City permit
Violations0 open1 historical across 1 case
“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 0531527002026 OPA removes $100,000 from the taxable assessment through the owner-occupant exemption.
Historical delinquency sources Record found
This parcel did not match the June 2022 delinquency snapshot. That absence does not confirm the account is current today.
A separate historical parcel ledger ending in 2016 records $927.90 and a lien entry. It is shown as historical context only.
2014$927.90 total · $693.35 principal · $46.80 interest · $48.53 penalty
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 summaryAlteration permit recorded in 2018.
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 1920: 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.
If you own it
$928 in the historical tax ledger through 2016
Historical context only, not a current payoff figure; that ledger also contains a lien entry. Verify today's balance and lien status directly with Philadelphia Revenue before relying on it.
If you’re the landlord
Lead certificate is not optional
Built 1920: every rental unit needs a lead-safe or lead-free certificate on file with the City. Without one: fines up to $2,000/day per unit, tenants may withhold rent, courts can order rent refunded — and no eviction will stand.
Licensed rental — keep it that way
Renewal requires city tax clearance and zero open L&I violations on the property. A lapsed license suspends the right to collect rent or evict.
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 building, 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
$752,000
2026 billed-year assessment · 2027: $701,700 · built 1920
Price / sq ft
$260
block $324 · below block
Assessment change
+66%
+5%/yr since 2016 · 2027 -7% vs 2026
Est. tax bill / yr
$9,127
1.21% effective
Jun 2022 tax snapshot
No match
not proof the account is current
Times sold
0
licensed rental
Assessment vs. the block and ZIP · every dated City record marked on the line
- OPA assessment · 2016$423K 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$423K 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$423K 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$635K 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$656K 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$656K 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$656K 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$601K 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$601K 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$752K 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$752K 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$702K 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 · 2012-01-26ElectricalThis 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 · 2012-05-03PlumbingThis 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 · 2013-09-09AlterationThis 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 · 2013-10-17ZoningThis 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 · 2013-10-17Major 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 · 2014-01-14AdministrativeThis 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 · 2018-08-10AlterationThis 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 ↗
- L&I violation · 2013-11-27PERMB- WORK NOT SAME AS PERMITA 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 ↗
- License · 2004-02-25RentalA City license record tied to an activity or property use. Its issue, expiration, inactive, and status fields—not the category alone—show what was recorded for this date.Philadelphia L&I licenses and property records ↗
Property assessmentBlock median & rangeZIP 19147 medianAssessmentL&I violationPermitLicense
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 record9 events · exact dates, newest first
- PermitAlteration
- PermitAdministrative
- L&I violationPERMB- WORK NOT SAME AS PERMIT
- PermitZoning
- PermitMajor alteration
- PermitAlteration
- PermitPlumbing
- PermitElectrical
- LicenseRental
The short read
Permit on recordAlteration permit recorded in 2018.
A selected summary of the main sequence. The chart above and source ledger below contain every fetched dated row.
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 9 dated records deeds, permits, inspections, licenses, violations, certifications & appeals
- PermitAlteration
Permit 901359 · COMPLETED
EXTERIOR COVERING - INSTALL VINYL SIDING ON FRONT CORNICE (SFD)
- PermitAdministrative
Permit 511203 · COMPLETED
TO AMEND PERMIT#497639-REMOVE EXISTING DECK AND RAILING SYSTEM.INSTALL NEW DECK FRAMING WITH PRESSURE TREATED DOUBLE 2X6X12 RAFTERS. FRAME OUT 2" TO 3" DEEP CUT OUT FOR DOOR. RAISE EXISTING POST ON WALL APPROX 7" AND SECURE POSTS AND PARAPET WALL AND WALL RAFTERS WITH APPROPRIATE FASTENERS.INSTALL NEW COMPOSITE DECKING AND NEW 42" TITAN PRO RAILING SYSTEM-SFD
- ViolationPERMB- WORK NOT SAME AS PERMIT
Case 497639 · Violation 3427697 · Code A-302.10/2 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
- PermitZoning
Permit 497638 · COMPLETED
REMOVE EXISTING DECK FROM SECOND FLOOR REAR ROOF REMOVE EXISTIGN ROOFING MATERIAL INSTALL NEW TWO PLY MODUFIED ROOF, NEW PRESSURE TEREATED DECK FRAMING, NEW TIMBOR TECK COMPOSITE DECKING AND NEW TITAN PRO RAIL SYSTEM TO DECK
- PermitMajor alteration
Permit 497639 · COMPLETED
REMOVE EXISTING DECK FROM SXECOND FLOOR REAR ROOF REMOVE EXISTIGN ROOFING MATERIAL INSTALL NEW TWO PLY MODUFIED ROOF, NEW PRESSURE TEREATED DECK FRAMING, NEW TIMBOR TECK COMPOSITE DECKING AND NEW TITAN PRO RAIL SYSTEM TO DECK
- PermitAlteration
Permit 491754 · COMPLETED
INSTALL (2) PLY-MODIFIED ROOFING SYSTEM TO MIDDLE REAR FLAT ROOF.
- PermitPlumbing
Permit 403069 · COMPLETED
REPLACE CURB TRAP & MAIN DRAIN (2FD)
- PermitElectrical
Permit 383600 · COMPLETED
REPLACE IN KIND- METER SOCKET AND DISCONNECT , PANEL BOX (16 SPACE).... IN ACCORDANCE WITH 2008 NEC FOR A TWO FAMILY DWELLING
- LicenseRental
License 254481 · Active
WEI TU & DACHENG WANG · Expires 2027-02-28
What this record suggests
The City file documents 7 permits touching electrical work, plumbing, roof work. 7 carries a completed, issued, or approved status; that documents the filing, not the present quality of the work.
Flags: active rental license · historical tax ledger through 2016 recorded $928 with a lien entry. 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
4
Interior
2,703 sqft
livable area
Lot
1,063 sqft
Basement
Partial
city code H
Heat
Hot water / radiators
city code B
Central air
No
Exterior condition
Above average
city code 3
Above averageBelow average
Interior condition
Average
city code 4
Above averageBelow average
Quality grade
B
assessor's grade
ABCDE
Zoning
RM1
city zoning code
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
Run the numbers
What owning 509 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 2 licensed units × ~85% of the area's median unit rent — the whole building's income, not one unit's. Assessed value is not an asking price — set the price slider to the real one.
When this house last sold (1994) a 30-year mortgage ran about 8.38% — 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
509 S 13th St sits on the 500 block of S 13th St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 511 S 13th St · 513 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)