121 W Union St, Seneca, IL 61360 Property Records

LaSalle County property record for 121 W Union St, Seneca, IL 61360

Property Summary

Property TypeSingle Family Home
Details1.5 ba · 1,248 sqft · built 1980
Lot Size0.17 acres (7,416 sqft)
OwnerIndividual Name on Record
Tax Bill$1,898 (2025)
Flood ZoneZone X (minimal risk)
APN24-23-420-027

Property Details

APN / Parcel Number

Primary APN24-23-420-027
Alternative APN
  • 20-23-485-003

Interior

Full Baths1.5 Baths
Half Baths1 Half Bath
Stories1 Story
Building Area1,248 sqft Total Area

Exterior

Year BuiltBuilt 1980
Effective Year BuiltEffective 1980
Lot Area7,416 sqft (0.17 acres)

Location & Zoning

Street Address121 W UNION ST
CitySENECA
StateIL
Zip61360-9461
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionCROTTY 2ND ADD W1/2 LOTS 13 TO 17 & S22' W1/2 LOT 18 BLK 11
Legal SubdivisionCROTTYS 2ND ADD
Legal Block11
Legal Lot Number13-18
JurisdictionLASALLE IL
Township / Civil DivisionMANLIUS
Census Block Group1
Census Block1009
Census Tract963700

Owner

Source: LaSalle County records, as of October 20, 2026

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Owner of RecordIndividual Name on Record
Mailing Address121 W UNION ST, SENECA, IL 61360-9461
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Record UpdatedOct 29, 2026

Tax Assessment & Valuation

Source: LaSalle County assessment roll, as of June 29, 2026

Property Jurisdictions

TypeName
StateIllinois
CountyLaSalle County
County SubdivisionManlius Township
MunicipalitySeneca Village
Elementary School DistrictSeneca Community Consolidated School District 170 (PK - 08)
Secondary School DistrictSeneca Township High School District 160 (09 - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$1,898.00 (+24.54%)$40,647 (+19.9%) Land $5,734 Building $34,913$121,941 (+19.9%) Land $17,202 Building $104,739
2024$1,524.00
2023$33,901 (+1.87%) Land $4,782 Building $29,119$101,703 (+1.87%) Land $14,346 Building $87,357
2022$33,280 Land $3,653 Building $29,627$99,840 Land $10,959 Building $88,881

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective March 29, 2024 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it
Nearby Flood Policies3 in force
Nearby Flood Claims2 (2007–2013)
Claims Outside the SFHA1 of 2
Most Recent ClaimApr 2013 · Severe Storms, Straight-line Winds, And Flooding

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 80% of the US · above 71% of Illinois
Wildfire Likelihood0.01% annual chance
ExposureNone
beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemSENECA
serves 2,353 people · EPA ID IL0991050
Water SourceGroundwater
Last State InspectionDec 2024
LeadUnder 1 ppb (2025)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes. The service area is an EPA estimate; the actual supplier may differ.

Internet Providers

Source: FCC Broadband Data Collection, based on 158 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Kraus Electronic Systems
Cable
2,500 / 50
Verizon
Fixed Wireless
300 / 20
T-Mobile
Fixed Wireless
100 / 20

May also be available: AT&T.

Nearby Properties on W Union St

Nearby Streets

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