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518 E Union Ave, Wausau, WI 54403 Property Records

Marathon County property record for 518 E Union Ave, Wausau, WI 54403

Property Summary

Property TypeSingle Family Home
Details4 bd · 2 ba · 1,820 sqft · built 1950
Lot Size0.18 acres (7,841 sqft)
OwnerTrust Name on File
Last Sale$103,500 (Jan 2022)
Tax Bill$4,091 (2025)
Deeds & MortgagesJan 2022 Transfer
Sep 2019 Sale
Flood ZoneZone X (minimal risk)
APN291-2907-243-0100

Property Details

APN / Parcel Number

Primary APN291-2907-243-0100
Alternative APN
  • 59-4605-006-002-00-00

Interior

Bedrooms4 Beds
Full Baths2 Baths
Total Rooms8 Rooms
Stories1 Story
Building Area1,820 sqft Living Area
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1950
Effective Year BuiltEffective 1950
Architectural StyleOther
Exterior MaterialComposition/Composite
Lot Area7,841 sqft (0.18 acres)
Lot Dimensions120 ft deep x 65 ft wide
Garage TypeDetached
Parking Spaces2 Parking Spaces

Utilities, Heating & Cooling

Cooling SystemCentral
Heating SystemCentral

Location & Zoning

Street Address518 E UNION AVE
CityWAUSAU
StateWI
Zip54403-3365
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeR3
Legal DescriptionKIEFER MILLER & RINGLES 2ND ADD W1/2 OF LOTS 1 & 2 BLK 6
Legal Range07E
Legal Township29N
Legal Section24
Legal SubdivisionKIEFER MILLER & RINGLES 2ND ADD
Legal Block6
Legal Lot Number1&2
JurisdictionMARATHON WI
Township / Civil DivisionWAUSAU
Census Block Group5
Census Block5008
Census Tract300

Owner

518 E Union Ave is owner-occupied and held in a trust since January 2022.

Source: Marathon County records, as of February 10, 2026

Owner of RecordTrust Name on File
Mailing Address518 E UNION AVE, WAUSAU, WI 54403-3365
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust, Irrevocable Trust

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

Deeds, Mortgages & Sale History

DateDocument
Jan 24, 2022Intrafamily Transfer, Transfer
Sep 18, 2019Warranty Deed, Transfer
ACCURATE TITLE SERVICES INC, ACCURATE TITLE & CLOSINGS LLC

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJan 24, 2022 · Amount on File
Deed SaleJan 24, 2022 · Amount on File
Prior SaleApr 16, 2008 · Amount on File
Deed Document Number20221854849
Prior Transfer DateJan 18, 2022
Prior Transfer Doc0001854849
Record UpdatedOct 29, 2026

January 2022: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionMARATHON WI
Recording DateJan 24, 2022
Property Address518 E UNION AVE, WAUSAU, WI 54403-3365
Document Number0001854849
Instrument DateJan 18, 2022
Instrument1854849
Transaction TypeTransfer
Record UpdatedApr 23, 2024

Transaction

Tax$0.00
Amount AccuracyTransfer Tax Exempt
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipIrrevocable Trust

September 2019: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionMARATHON WI
Recording DateSep 18, 2019
Property Address518 E UNION AVE, WAUSAU, WI 54403-3365
Document Number0001788042
Instrument DateSep 9, 2019
Instrument1788042
Transaction TypeTransfer
Record UpdatedOct 16, 2019
Title CompanyACCURATE TITLE SERVICES INC, ACCURATE TITLE & CLOSINGS LLC

Transaction

Tax$0.00
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address518 E UNION AVE WAUSAU WI 544033365, WAUSAU, WI 54403-3365

Tax Assessment & Valuation

The 2025 property tax bill for 518 E Union Ave was $4,091 with a homeowner's exemption.

Source: Marathon County assessment roll, as of February 10, 2026

Property Jurisdictions

TypeName
StateWisconsin
CountyMarathon County
MunicipalityWausau City
Unified School DistrictWausau School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$4,091.00$175,100 Land $17,900 Building $157,200$183,779 Land $18,787 Building $164,992
2023$3,055.00 Homeowner's exemption$105,400 Land $17,200 Building $88,200$126,365 Land $20,621 Building $105,744

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

Flood

FEMA maps place 518 E Union Ave in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective September 18, 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Wildfire risk around 518 E Union Ave is low, with a 0.01% annual chance of wildfire.

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

Wildfire RiskLow
lower than 80% of the US · above 57% of Wisconsin
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 SystemWAUSAU WATERWORKS
serves 39,994 people · EPA ID WI7370102
Water SourceGroundwater
Last State InspectionDec 2023
Lead6 ppb (2020)
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.

Internet Providers

Source: FCC Broadband Data Collection, based on 481 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
TDS Telecom
Fiber		8,000 / 8,000
Frontier
Fiber		7,000 / 7,000
Spectrum
Cable · Fiber in parts of the area		1,000 / 1,000
AT&T
Fixed Wireless		100 / 20

May also be available: T-Mobile.

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