Industrial property report

3401 D St

51,840 sqft · I2 · built 1912

Industrial building · Steven N Szathmary · assessed $2.5M. On the 3400 block of D St.

Property summary

Assessment$2.5MCity assessed value Last sale$105KRecorded 2003 Est. annual tax$35K/yearAssessment × 1.3998% Tax delinquency—Snapshot unavailable Permits0Dated events in report ViolationsNone openNone open when assembled

Report assembled Jul 9, 2026 “Open” reflects records available then historical records keep their source dates estimates are labeled

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Street view of 3401 D St — From the street — imagery © Google

From above — imagery © Esri, Maxar

What stands out

From the public record

Finding

History

Why it matters

sold $105K (2003); 2 L&I violations (2026); L&I: 2 failed, 2 passed (2026).

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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.

Dated record flagAssessment/permit mismatch

The assessment jumped 60% in 2027, but no matching permit appears in the property timeline.

Evidence: assessment moved from $1,555,200 to $2,488,300 · no permit shown in 2026-2028

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

Szathmary Steven N

Tax standing

Assessed $2.5M

On the tax roll

$ / sq ft

$48

below the $70 median for 3,774 industrial parcels citywide

Assessed value

$2.5M

City market value

Interior area

51,840 sqft

Lot size

17,933 sqft

Built

1912

Zoning

Block context

3401 D St sits on the 3400 block of D St. Open the block report to compare its parcels, ownership and public-record history.

See the whole block →

Next door: 3408 D St · 3410 D 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

Methodology & freshness

Available City datasets are queried from OpenDataPhilly (phl.carto.com), then reports are cached and refreshed on a rolling schedule. Source dates vary: the parcel-level tax-delinquency snapshot is June 2022 and the separate detailed tax ledger ends in 2016, so neither establishes today’s balance. Other dossiers re-pull on view once stale, and citywide benchmarks recompute weekly. AI-written passages are generated from these records only and rejected if they state a number the record doesn't hold.

BlockReport AICited sources

Ask about this commercial property across deeds, permits, violations, dated taxes, ownership, and comparable context. Curated questions are free; ask 3 custom questions per browser. Analyst includes up to 150 custom questions per day.

About this data & fine print

Answers are generated by an AI agent querying available City of Philadelphia open data at the moment you ask: OPA property assessments, Recorder of Deeds transfer records, L&I permits, violations & licenses, dated Dept. of Revenue tax records, Zoning Board appeals, Police incident reports, Philly311 requests, and School District of Philadelphia catchment and school data.

For an explicit web search or a current listing/news question, the agent may also search the public web through OpenRouter and must link every web-derived claim. Public listing pages can be stale and are not direct or comprehensive MLS access.

Property-level tax data is historical: the delinquency snapshot is dated June 2022 and the separate detailed ledger ends in 2016. Neither shows what is owed today; verify a current balance with Philadelphia Revenue.

City data is published as-is and can lag, contain errors, or be corrected later; school performance datasets run years behind and are labeled with their school year. AI answers can contain mistakes — verify anything that matters against the official record (property.phila.gov, atlas.phila.gov) before acting on it.

Informational only. Not legal, financial, or investment advice. Not a consumer report under the FCRA — it may not be used to decide anyone's eligibility for housing, tenancy, employment, credit, or insurance.

Official city record ↗ · L&I history ↗ · See the whole block · Download this record (JSON)