2026 taxable assessment $1,514,246 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $4,040,600; it is not the 2026 billed-year value.
Commercial property report
915-17 Walnut St
69,933 sqft · CMX5
Commercial · Phila Thermal Corp · assessed $4.0M (2026) · 2027 OPA assessment $4.0M. On the 900 block of Walnut St.
BlockReport AI · cited public records
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Property summary
Assessment$4,040,6002026 OPA assessment · 2027: $4,040,600
Last sale$1.1MRecorded 1987
Est. tax bill$21,196/year2026 taxable assessment · full-value scenario $56,560/year · basis and term unverified
Tax delinquency—Snapshot unavailable
Permits5Dated events in report
Violations3 openNo historical match in fetched records
“Open” reflects records available then historical records keep their source dates estimates are labeled
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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 7716100002026 OPA taxes $1,514,246 of $4,040,600 assessed. The assessment fields alone do not identify a program, approval date, expiration, or buyer eligibility.
See the assessment math →Applying the same rate to the billed-year full assessment. OPA's numeric split does not say when or whether the current treatment changes.
See the assessment math →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
Record summarynew construction appears in a 2007 permit with a reduced taxable assessment shown.
View supporting records →The property record, over time
Every dated deed, permit, inspection, license, violation, certification, and appeal is placed on the City’s annual assessment line. Select a point to read what happened; the line is an assessment history—not a sale-price chart or appraisal. OPA has also published a 2027 assessment of $4,040,600; it is not yet the billed-year tax basis.
Assessment history · all dated City records marked on the line
- OPA assessment · 2016$3.8M 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$3.8M 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$4.0M 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$4.0M 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$4.0M 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$4.0M 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$4.0M 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$4.0M 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$4.0M 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$4.0M 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$4.0M 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$4.0M 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 ↗
Property assessmentAssessment
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.
Commercial propertyProperty report
This is a commercial, recorded under the city's commercial category. The homeowner tools (rent estimate, homestead playbook) don't apply, so they're hidden. The full record and owner trail are below.
3 open violations
What it is
Commercial
Pub Util 6 Sty Mas+Other
Owner
Phila Thermal Corp
OPA tax treatment
Assessed $4.0M
Taxable assessment on the roll
$ / sq ft
$58
below the $130 median for 12,035 commercial parcels citywide
Corridor
Market East
city commercial corridor
Assessed value
$4,040,600
2026 OPA · 2027: $4,040,600
Interior area
69,933 sqft
Lot size
19,696 sqft
Zoning
CMX5
Who's behind it
Phila Thermal Corp · corporate / LLC owner
• Tax bills mail to 13155 Noel Rd, Dallas TX, 75240 — outside Philadelphia
Block context
915-17 Walnut St sits on the 900 block of Walnut St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 913 Walnut St · 919-21 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
- Imagery — Street photo © Google · Aerial © Esri, Maxar
Methodology & freshness
This report was assembled Jul 10, 2026, 2:50 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)