2026 taxable assessment $160,300 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $161,100; it is not the 2026 billed-year value.
House report
3 bd · 1 ba · 2 stories · 896 sqft · RSA5 · built 1938
Owner-occupancy signal · assessed $160K (2026) · 2027 OPA assessment $161K · sold 1×. On the 6400 block of Marsden St.

Open the research chat with this property already in context. Curated questions are free.
“Open” reflects records available then historical records keep their source dates estimates are labeled
BlockReport can explain a discrepancy, but it cannot rewrite an official City record. Use the agency that owns the underlying fact:
Property tax
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.
2026 taxable assessment $160,300 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $161,100; it is not the 2026 billed-year value.
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 4112729002026 taxable assessment equals the full assessed value.
This parcel did not match the June 2022 delinquency snapshot. That absence does not confirm the account is current today.
For a purchase, refinance, or closing, request the City’s official Property Payoff statement in Tax Center under “More options.”
recorded transfer $28K (2002); 4 L&I violations (2019); 3 L&I violations (2020); L&I: 5 failed, 1 passed (2020); 3 L&I violations (2021); Inspection failed ×6 (2021); 2 L&I violations (2022); L&I: 2 failed, 1 passed (2022); Inspection failed (2023).
View supporting records →The record, translated into moves — what a buyer, the owner, and a landlord would each want to check next under Philadelphia's actual rules.
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.
Single-family rowhouse (the classic Philly row). Converting to a duplex or apartments needs a use variance the zoning board rarely grants — Pennsylvania courts require a physical hardship of the lot itself, and economics alone do not qualify.
This home reads owner-occupied but shows no Homestead Exemption, which removes $100,000 from the taxable assessment (worth up to $1,399/yr). Applying through the City is free and takes minutes.
Built 1938: 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.
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.
Every fetched annual City assessment for this house, 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.
Assessment vs. the block and ZIP · every dated City record marked on the line
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.
recorded transfer $28K (2002); 4 L&I violations (2019); 3 L&I violations (2020); L&I: 5 failed, 1 passed (2020); 3 L&I violations (2021); Inspection failed ×6 (2021); 2 L&I violations (2022); L&I: 2 failed, 1 passed (2022); Inspection failed (2023).
Records behind the chart
The chart above is the primary timeline. This drawer preserves every underlying dated row and its filed status for source-level review.
Case CF-2022-124323 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case CF-2022-124323 · Violation VI-2022-093523 · Code PM15-308.1 · COMPLIED
Resolution: COMPLIED - BY ENFORCEMENT ACTION City marked this violation complied with; check the resolution date and live case for what was accepted.
Case CF-2022-116692 · PASSED
The cited inspection visit was marked passed.
Case CF-2022-116692 · Violation VI-2022-087125 · Code PM15-308.1 · COMPLIED
Resolution: COMPLIED - OWNER REPAIR City marked this violation complied with; check the resolution date and live case for what was accepted.
Case CF-2022-116692 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case CF-2021-098855 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case CF-2021-098855 · Violation VI-2021-071098 · Code PM15-308.1 · COMPLIED
Resolution: COMPLIED - BY ENFORCEMENT ACTION City marked this violation complied with; check the resolution date and live case for what was accepted.
Case CF-2021-035051 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case CF-2021-035051 · Violation VI-2021-026551 · Code PM15-308.1 · COMPLIED
Resolution: COMPLIED - BY ENFORCEMENT ACTION City marked this violation complied with; check the resolution date and live case for what was accepted.
Case CF-2021-002317 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case CF-2021-002317 · Violation VI-2021-001630 · Code PM15-308.1 · CLOSED
Resolution: CLOSED - ADMINISTRATIVELY City marked the record closed; open the case for the closing reason.
Case CF-2020-080291 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case CF-2020-080291 · Violation VI-2020-047959 · Code PM15-308.1 · COMPLIED
Resolution: COMPLIED - BY ENFORCEMENT ACTION City marked this violation complied with; check the resolution date and live case for what was accepted.
Case CF-2020-032734 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case CF-2020-032734 · Violation VI-2020-014356 · Code PM15-308.1 · COMPLIED
Resolution: COMPLIED - BY ENFORCEMENT ACTION City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 719395 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case 719395 · PASSED
The cited inspection visit was marked passed.
Case 719395 · Violation 211980719 · Code CP-305B · COMPLIED
Resolution: COMPLIED - BY ENFORCEMENT ACTION City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 719395 · Violation 211980720 · Code CP-305 · COMPLIED
Resolution: COMPLIED - BY ENFORCEMENT ACTION City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 719395 · Violation 211980721 · Code CP-01 · COMPLIED
Resolution: COMPLIED - BY ENFORCEMENT ACTION City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 709665 · Violation 5200884 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 709665 · Violation 5200885 · Code CP-312A · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 664701 · Violation 4880367 · Code CP-305 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 664701 · Violation 4880366 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 645828 · Violation 4772339 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 645828 · Violation 4772340 · Code CP-101 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 629806 · Violation 4734657 · Code CP-101 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 563485 · Violation 4144679 · Code CP-305 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 563485 · Violation 4144678 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 529078 · Violation 3907597 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 529078 · Violation 3907598 · Code CP-305 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 481192 · Violation 3564795 · Code CP-305 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 481192 · Violation 3564794 · Code CP-01 · COMPLIED
City marked this violation complied with; check the resolution date and live case for what was accepted.
Case 189479 · PASSED
A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked passed.
Case 189479 · FAILED
A legacy L&I inspection label. The unit inspected housing for property-maintenance, fire-prevention, and related code compliance; the separate status says how that visit ended. The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case 189479 · Violation 1218866 · Code A.CNE.000 · COMPEXCP
Case 40841 · CLOSED
City marked the record closed; open the case for the closing reason.
Case 40841 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
Case 29078 · CLOSED
City marked the record closed; open the case for the closing reason.
Case 29078 · FAILED
The cited inspection visit was marked failed; later rows may show follow-up or resolution.
License 244644 · Active
WALTER ULATOWSKI · Expires 2027-02-28
2002
What this record suggests
The dated deed and City-record sequence is assembled below. Read timing as a research lead, not proof of renovation, condition, or motive.
Flags: active rental license. Informational only — not investment advice or a consumer report (FCRA).
The city assessor's field record — the physical spec sheet behind the assessed number.
OPA field-assessment attributes. Condition and grade are the assessor's codes, not an inspection.
6439 Marsden St sits on the 6400 block of Marsden St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 6437 Marsden St · 6441 Marsden St
This report was assembled Jul 11, 2026, 2:07 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)