2026 taxable assessment $144,200 × 1.3998%. Estimate—not a bill or account balance.
OPA also publishes a 2027 assessment of $79,600; it is not the 2026 billed-year value.
Land report
4473 Fleming St
Vacant lot · Nolan Chalifoux · assessed $144K (2026) · 2027 OPA assessment $80K. On the 4400 block of Fleming St.
Property summary
Assessment$144,2002026 OPA assessment · 2027: $79,600
Last sale$975KRecorded 2025
Est. tax bill$2,019/year2026 taxable assessment × 1.3998%
Tax delinquency—Snapshot unavailable
Permits6Dated events in report
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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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 2110000192026 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 2023 permit, sold for $975K in 2025.
View supporting records →Assessment and sale price disagree hard
Why it mattersAssessed at $80K, but it traded for $975,000 in 2025 — a 12.2× gap. Could be a non-market deed the record doesn't label, or an assessment that hasn't caught up.
View supporting records →City Property History
Fetched L&I and zoning records
Every row successfully fetched for this report is counted below. Dataset availability and matching can differ from the City's interactive file; use the official link for current detail.
- Recorded owner
- Nolan Chalifoux
- Tax mailing address
- 4473 FLEMING ST, PHILADELPHIA PA, 19128
- L&I district
- —
- Building ID (BIN)
- —
- OPA account
- 211000019
Permits0Unavailable
Violation cases0Unavailable
Investigations0Unavailable
Building certifications0Unavailable
Business licenses0Unavailable
Appeals1Completed · Granted with conditions
PermitsPermit number, issued date, work and City status0
No permits matched this parcel in the fetched City dataset.
Violation cases0 individual violation records; resolved history remains visible0
No violation cases matched this parcel in the fetched City dataset.
InvestigationsEvery inspector visit, including CLOSED outcomes0
No investigations matched this parcel in the fetched City dataset.
Building certificationsInspection result and filed expiration date by L&I building ID0
No building certifications matched this parcel in the fetched City dataset.
Business licensesHistorical and active licenses are both retained0
No business licenses matched this parcel in the fetched City dataset.
AppealsApplication status and decision are separate City fields1
ZBA Permit Denial - VarianceAppeal ZP-2021-005109
Oct 28, 2021 Completed Granted with conditions
PERMIT FOR THE LOT ADJUSTMENT TO CREATE THREE (3) PARCELS ?PARCEL A?; ?PARCEL B? AND ?PARCEL C? FROM ONE (1) OPA ACOUNTS (4477 FLEMING STREET) AS FOLLOWS:FOR THE COMPLETE DEMOLITION OF EXISTING GARAGE AT REAR; FOR THE DEMOLITION OF EXISTING
City of Philadelphia OPA, L&I and Zoning Board records, shown as filed. A CLOSED investigation is an outcome label, not a missing visit; an appeal's application status and decision may differ.
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 220% in 2025, but no matching permit appears in the property timeline.
Evidence: assessment moved from $45,000 to $144,200 · 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.
Vacant landLand report
An empty lot: no building, just the land and its paper trail. The homeowner tools don't apply; the deed history, owner and zoning are below, and the analyst can trace what the owner holds citywide.
What it is
Vacant lot
Row W/Det Gar 2.5 Sty Sto
Owner
Chalifoux Nolan
OPA tax treatment
Assessed $144K
Taxable assessment on the roll
Assessed value
$144,200
2026 OPA · 2027: $79,600
Lot size
2,490 sqft
Zoning
RSA3
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 $80K, but it traded for $975,000 in 2025 — a 12.2× gap. Could be a non-market deed the record doesn't label, or an assessment that hasn't caught up.
Block context
4473 Fleming St sits on the 4400 block of Fleming St. Open the block report to compare its parcels, ownership and public-record history.
See the whole block →Next door: 4475 Fleming St · 4477 Fleming 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 9, 2026, 6:50 PM 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)