502 E Union St, Oconomowoc, WI 53066 Property Records

Waukesha County property record for 502 E Union St, Oconomowoc, WI 53066

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,104 sqft
Lot Size	0.21 acres (9,148 sqft)
Owner	2 Individual Names on File
Tax Bill	$3,319 (2025)
Deeds & Mortgages	Sep 2025 Line of Credit Sep 2020 Mortgage + 1 more
Flood Zone	Zone X (minimal risk)
APN	`OCOC-0590-055`

Property Details

APN / Parcel Number

Primary APN	`OCOC-0590-055`

Exterior

Lot Area	9,148 sqft (0.21 acres)

Location & Zoning

Street Address	502 E UNION ST
City	OCONOMOWOC
State	WI
Zip	53066-3846
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOTS 15 & 16 WOODS BLOCK UNION ADDITION TO THE VILLAGE OF OCONOMOWOC PT S1/2 SEC 33 T8N R17E & PT N1/2 SEC 4 T7N R17E EX 65.00 FT OFF N END
Legal Range	17E
Legal Township	8N
Legal Section	33
Legal Subdivision	UNION ADDITION TO THE VILLAGE OF OCONOMO
Legal Block	WOODS
Legal Lot Number	15
Jurisdiction	WAUKESHA WI
Township / Civil Division	OCONOMOWOC
Census Block Group	3
Census Block	3001
Census Tract	204302

Owner

502 E Union St is owned and occupied by two individuals who acquired it in September 2020.

Source: Waukesha County records, as of June 23, 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 Record	2 Individual Names on File
Mailing Address	502 E UNION ST, OCONOMOWOC, WI 53066-3846
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Sep 11, 2025	Deed of Trust, Mortgage · Line of Credit LANDMARK CU
Sep 23, 2020	Intrafamily Transfer, Transfer · Conventional Mortgage LANDMARK CU
May 7, 2018	Deed of Trust, Mortgage · Line of Credit LANDMARK CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	Sep 4, 2020
Transfer Doc	0004513261
Record Updated	Oct 29, 2026

September 2025: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WAUKESHA WI
Property Address	502 E UNION ST, OCONOMOWOC, WI 53066-3846
Transaction Type	Mortgage
Record Updated	Sep 29, 2025

Transferred To (Grantee/Buyer)

Name	Verified Name

Mortgage

Document Number	0004836243
Date	Sep 11, 2025
Instrument	4836243

Lender

Name	LANDMARK CU
Type	Credit Union
Address	BROOKFIELD, WI 53005

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate
Change Frequency	Monthly

September 2020: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	WAUKESHA WI
Recording Date	Sep 23, 2020
Property Address	502 E UNION ST, OCONOMOWOC, WI 53066-3846
Document Number	0004513261
Instrument Date	Sep 4, 2020
Instrument	4513261
Transaction Type	Transfer
Record Updated	Jun 17, 2021

Transaction

Tax	$0.00
Amount Accuracy	No Consideration Stated
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name
Address	502 E UNION ST, 502, OCONOMOWOC, WI 53066-3846

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	502 E UNION ST, OCONOMOWOC, WI 53066-3846

Mortgage

Document Number	0004513262
Date	Sep 23, 2020
Instrument	4513262

Lender

Name	LANDMARK CU

Agreement

Type	Conventional Mortgage
Amount	Amount on Record

May 2018: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WAUKESHA WI
Property Address	502 E UNION ST, OCONOMOWOC, WI 53066-3846
Document Number	0004339205
Instrument Date	May 7, 2018
Transaction Type	Mortgage
Record Updated	May 31, 2018

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	502 E UNION ST OCONOMOWOC WI 530663846, OCONOMOWOC, WI 53066-3846

Mortgage

Document Number	0004339205
Date	May 15, 2018
Instrument	4339205

Lender

Name	LANDMARK CU
Type	Credit Union
Address	NEW BERLIN, WI 53151

Agreement

Type	Line of Credit
Amount	Amount on Record

Interest

Rate Type	Adjustable Rate

Tax Assessment & Valuation

The 2025 property tax bill for 502 E Union St was $3,319.

Source: Waukesha County assessment roll, as of June 23, 2026

Property Jurisdictions

Type	Name
State	Wisconsin
County	Waukesha County
Municipality	Oconomowoc City
Unified School District	Oconomowoc Area School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$3,319.00	$320,400 Land $77,800 Building $242,600	$325,100
2023	$3,010.00 Homeowner's exemption	$270,600 Land $77,800 Building $192,800	$282,400

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

Flood

FEMA maps place 502 E Union St in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective October 19, 2025

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

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

Wildfire

Wildfire risk around 502 E Union St is low, with less than a 0.01% annual chance of wildfire.

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

Wildfire Risk	Low lower than 99.1% of the US · lower than 97.9% of Wisconsin
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None 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 System	OCONOMOWOC WATERWORKS serves 15,805 people · EPA ID WI2680227
Water Source	Groundwater
Last State Inspection	Apr 2025
Lead	7 ppb (2023) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None 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 225 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Spectrum Cable · Fiber in parts of the area	1,000 / 50
Verizon Fixed Wireless	300 / 20
Bertram Communications Fixed Wireless	100 / 20
AT&T DSL · Fiber in parts of the area	100 / 20

May also be available: Netwurx, T-Mobile.

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