2026 taxable assessment $31,000,000 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $31,000,000; it is not the 2026 billed-year value.
Commercial property report
428-36 Walnut St
9 stories · 361,485 sqft · CMX4 · built 1924
Offices · 436 Walnut Street LLC · assessed $31M (2026) · 2027 OPA assessment $31M. On the 400 block of Walnut St.
Property summary
Assessment$31,000,0002026 OPA assessment · 2027: $31,000,000
Last sale$30MRecorded 2026
Est. tax bill$433,938/year2026 taxable assessment × 1.3998%
Tax delinquency—Snapshot unavailable
Permits3Dated events in report
Violations6 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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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 8833004002026 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 recordNew construction
Why it mattersbuilt new under a 2018 permit, sold for $30M in 2026.
View supporting records →Assessment history
The City’s annual assessed value for this parcel, with dated permits, inspections, violations, and appeals marked when the record has a date. The line is an assessment history—not a sale-price chart or appraisal. OPA has also published a 2027 assessment of $31,000,000; it is not yet the billed-year tax basis.
City assessment over time · dated property records marked on the line
This propertySaleL&I violationPermit
Highlight
Commercial propertyProperty report
This is a offices, recorded under the city's offices category. The homeowner tools (rent estimate, homestead playbook) don't apply, so they're hidden. The full record and owner trail are below.
6 open violations
What it is
Offices
Off Bld N/Com W/Pkg Mason
Owner
436 Walnut Street LLC
OPA tax treatment
Assessed $31M
Taxable assessment on the roll
$ / sq ft
$86
below the $143 median for 882 offices parcels citywide
Corridor
Old City
city commercial corridor
Assessed value
$31,000,000
2026 OPA · 2027: $31,000,000
Interior area
361,485 sqft
Lot size
31,772 sqft
Stories
9
Built
1924
Zoning
CMX4
City record timeline
Every dated deed, permit, inspection, license, violation, certification, and appeal—together.
The timeline combines the report’s transfer history with every successfully fetched L&I and zoning row. A date or status is the City’s filed record, not a statement that the condition remains current; use the official file for live detail.
- Recorded owner
- 436 Walnut Street LLC
- L&I district
- —
- OPA account
- 883300400
What this record suggests
6 violations are still marked open in the assembled record. The date and status belong in a current L&I check before relying on them.
- Recorded transfer$30M transfer
2026
Free record guide
How Philadelphia’s property system works
These explainers are free because the record only helps if you know what it can—and cannot—prove. Use the linked City guidance for the controlling rule.
Permits and inspections
A permit is the City’s authorization and review pathway for construction or repair work. No fetched permit is not proof that no work ever happened.
L&I inspections are scheduled at defined stages; final inspection and required certifications are separate steps in closing out applicable work.
How construction and repair permits work ↗See City inspection stages by permit type ↗Assessments and taxes
The OPA assessment is the City’s value on the tax roll—not an asking price, appraisal, or live account balance. The taxable assessment can differ from the full assessment because the City roll records exemptions or other treatment; the report keeps those fields separate.
Your annual estimate uses the taxable assessment. Payments, credits, interest, and the amount due are maintained separately in Tax Center.
How the Office of Property Assessment works ↗Philadelphia property-tax guidance ↗Violations, cases, and status check current status
An open row is a dated City status, not a diagnosis of current condition or a conclusion about the property. Read the case, notice, and any subsequent inspection together, then verify the live file.
How L&I code enforcement works ↗City violation and order types ↗Who's behind it
436 Walnut Street LLC · corporate / LLC owner
• Tax bills mail to 805 Third Ave, New York NY, 10022 — outside Philadelphia
Block context
428-36 Walnut St sits on the 400 block of Walnut St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 422-26 Walnut St · 416-20 Walnut 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 10, 2026, 2:49 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)