2026 taxable assessment $277,200 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $133,000; it is not the 2026 billed-year value.
Industrial property report
833 Washington Ave
1,386 sqft · CMX2 · built 1915
Industrial building · Kth Blue Star LLC · assessed $277K (2026) · 2027 OPA assessment $133K. On the 800 block of Washington Ave.
Property summary
Assessment$277,2002026 OPA assessment · 2027: $133,000
Last sale$4.6MRecorded 2025
Est. tax bill$3,880/year2026 taxable assessment × 1.3998%
Tax delinquency—Snapshot unavailable
Permits—Record unavailable
Violations0 openNo historical match in fetched records
“Open” reflects records available then historical records keep their source dates estimates are labeled
BlockReport AI · cited public records
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Question or correct this record
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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 8844635852026 taxable assessment equals the full assessed value.
Historical delinquency sources No current conclusion
The June 2022 delinquency snapshot was not verifiably available in this cached report. No conclusion about a match—or today’s balance—can be drawn from that absence.
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 recordAssessment and sale price disagree hard
Why it mattersAssessed at $133K, but it traded for $4,600,000 in 2025 — a 34.6× gap. Could be a non-market deed the record doesn't label, or an assessment that hasn't caught up.
View supporting records →Legal due diligence
What this record proves—and what it does not.
These checks are triggered by this property’s actual City rows. They identify the controlling document to verify; they do not declare a use legal, a building safe, or title clear.
Closing file: checks no public-record summary can replace3 documents/searches to assign before settlement
Property Sales Certification
The seller must obtain Philadelphia’s certificate showing the base zoning, last use in the zoning record, and open violations. The City warns that it does not prove Building Code occupancy or show zoning overlays.
Next: Obtain the fresh certificate and compare it with the CO, permits, and Atlas overlays.
Official guidance ↗Date-effective City Property Payoff
The Tax Center Property Payoff covers Real Estate Tax, Commercial Trash, and L&I abatement-work invoices. Philadelphia says it does not include business-tax debts or liens, water and sewer charges, or fines for code violations.
Next: Request the City statement effective through settlement; read every period and invoice.
Official guidance ↗Professional title and water-lien searches
OPA ownership, deed summaries, and a zero tax balance are not clear title. Mortgages, judgments, municipal claims, water liens, easements, heirs, and other encumbrances require separate searches.
Next: Use a Pennsylvania lawyer/title company and obtain owner’s title insurance; order the separate water search/payoff.
Official guidance ↗Separate water-lien guidance ↗Informational only—not a legal opinion, title report, code inspection, tax payoff, or substitute for a Pennsylvania lawyer, title company, inspector, or tax professional.
Records to verify together
Rule-based groupings across this property's dated public records. Each flag shows the records that belong in the same verification step and where the inference stops.
Assessment/permit mismatch
The assessment jumped 54% in 2025, but no matching permit appears in the property timeline.
Evidence: assessment moved from $180,100 to $277,200 · no permit shown in 2024-2026
Limit: Not proof of unpermitted work; reassessment, corrected data, or a permit under another parcel can also explain it.
Transparent record rules, not a score or forecast. Each flag is a prompt to verify the cited records, not a prediction or allegation.
Industrial propertyProperty report
This is a industrial building, recorded under the city's industrial category. The homeowner tools (rent estimate, homestead playbook) don't apply, so they're hidden. The full record and owner trail are below.
What it is
Industrial building
Ind Warehouse Masonry
Owner
Kth Blue Star LLC
OPA tax treatment
Assessed $277K
Taxable assessment on the roll
$ / sq ft
$96
above the $70 median for 3,774 industrial parcels citywide
Corridor
9th Street - Italian Market
city commercial corridor
Assessed value
$277,200
2026 OPA · 2027: $133,000
Interior area
1,386 sqft
Lot size
1,122 sqft
Built
1915
Zoning
CMX2
Who's behind it
Kth Blue Star LLC · corporate / LLC owner
• Owns 4 properties across Philadelphia under this name, assessed at $1.1M combined
• Tax bills mail to 3716 Highland Drive, Garnet Valley PA, 19060 — outside Philadelphia
• The last transfer was a nominal/family deed, not an open-market sale
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.
Assessment and sale price disagree hard
Assessed at $133K, but it traded for $4,600,000 in 2025 — a 34.6× gap. Could be a non-market deed the record doesn't label, or an assessment that hasn't caught up.
Block context
833 Washington Ave sits on the 800 block of Washington Ave. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 831 Washington Ave · 835 Washington Ave
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 10, 2026, 2:57 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. “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)