818 Jefferson St, Oshkosh, WI 54901 Property Records

Winnebago County property record for 818 Jefferson St, Oshkosh, WI 54901

Property Summary

Property Type	Single Family Home
Details	3 bd · 1 ba · 1,558 sqft · built 1920
Lot Size	0.091 acres (3,960 sqft)
Owner	2 Individual Names on File
Tax Bill	$3,909 (2025)
Deeds & Mortgages	May 2026 Mortgage Apr 2025 Mortgage
Flood Zone	Zone X (minimal risk)
APN	`10-02120000`

Property Details

APN / Parcel Number

Primary APN	`10-02120000`
Alternative APN	`910-02120000`

Interior

Bedrooms	3 Beds
Full Baths	1 Bath
Total Rooms	6 Rooms
Stories	2 Stories
Building Area	1,558 sqft Living Area

Exterior

Year Built	Built 1920
Effective Year Built	Effective 1920
Exterior Material	Other
Lot Area	3,960 sqft (0.091 acres)
Lot Dimensions	132 ft deep x 30 ft wide
Garage Type	Detached
Garage Area	160 sqft

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	HVAC
Heating Fuel	Gas

Location & Zoning

Account Number	910-02120000
Street Address	818 JEFFERSON ST
City	OSHKOSH
State	WI
Zip	54901-4560
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R5
Legal Description	S1/2 OF LOT 11 BLK J BALDWIN KNAPP & FITZGERALD ADDN
Legal Subdivision	BALDWIN KNAPP & FITZGERALDS ADDITION
Legal Block	J
Legal Lot Number	11
Jurisdiction	WINNEBAGO WI
Township / Civil Division	OSHKOSH
Census Block Group	2
Census Block	2006
Census Tract	502

Owner

818 Jefferson St is owned and occupied by two individuals who acquired it in May 2017.

Source: Winnebago County records, as of August 25, 2026

Owner of Record	2 Individual Names on File
Mailing Address	818 JEFFERSON ST, OSHKOSH, WI 54901-4560
Occupancy	Owner Occupied
Owner Type	Individual
Vesting	Husband and Wife

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

Date	Document
May 28, 2026	Deed of Trust, Mortgage · Conventional Mortgage MARINE CREDIT UNION
Apr 1, 2025	Intrafamily Transfer, Transfer · Conventional Mortgage MARINE CU

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Transfer Date	May 31, 2017
Transfer Doc	0000040726
Record Updated	Oct 29, 2026

May 2026: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WINNEBAGO WI
Recording Date	May 28, 2026
Property Address	818 JEFFERSON ST, OSHKOSH, WI 54901-4560
Document Number	0001967965
Instrument Date	May 22, 2026
Instrument	20261967965
Transaction Type	Mortgage
Record Updated	Jul 12, 2026
Title Company	NONE LISTED ON DOCUMENT

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	818 JEFFERSON ST, OSHKOSH, WI 54901-4560

Mortgage

Document Number	0001967965,
Date	May 28, 2026
Instrument	20261967965

Lender

Name	MARINE CREDIT UNION

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	230 Months
Due	Jul 1, 2045

Interest

Rate Type	Adjustable Rate
Rate	8.11%
Initial Type	Adjustable Rate
Adjustable	Adjustable Rate Rider
Max Rate	-1%

April 2025: Intrafamily Transfer, Transfer

Document Type	Intrafamily Transfer
Jurisdiction	WINNEBAGO WI
Recording Date	Apr 1, 2025
Property Address	818 JEFFERSON ST, OSHKOSH, WI 54901-4560
Document Number	0001941848
Instrument Date	Mar 26, 2025
Instrument	1941848
Transaction Type	Transfer
Record Updated	May 7, 2026
Title Company	KNIGHT BARRY TITLE INC

Transaction

Tax	$0.00
Amount Accuracy	Transfer Tax Exempt
Additional	Intrafamily Transfer

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	818 JEFFERSON ST, OSHKOSH, WI 54901-4560

Mortgage

Document Number	0001941849
Date	Apr 1, 2025
Instrument	1941849

Lender

Name	MARINE CU
Type	Credit Union

Agreement

Type	Conventional Mortgage
Amount	Amount on Record
Term	360 Months
Due	Apr 1, 2055

Interest

Rate Type	Adjustable Rate
Rate	10.1%
Type Change Date	Apr 1, 2030
Change Frequency	Annually
Min Rate At Change	8.1%
Max Rate At Change	12.1%
Index	1-Year T-Bill
Max Rate	12.1%

Tax Assessment & Valuation

The 2025 property tax bill for 818 Jefferson St was $3,909, up 6.8% from the year before.

Source: Winnebago County assessment roll, as of May 27, 2026

Property Jurisdictions

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

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$3,909.00 (+6.83%)	$137,400 Land $9,600 Building $127,800
2024	$3,659.00 (+29.84%)
2023	$2,818.00 (+1.51%) Homeowner's exemption	$64,800 (-) Land $5,700 Building $59,100	$93,638 Land $8,237 Building $85,401
2022	$2,776.00 Homeowner's exemption	$64,800 Land $5,700 Building $59,100

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

Flood

FEMA maps place 818 Jefferson St in Zone X, an area of minimal flood risk.

Source: FEMA National Flood Hazard Layer, effective March 26, 2019

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

The area around 818 Jefferson St has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire Risk	Not rated no burnable land within 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	OSHKOSH WATERWORKS serves 63,000 people · EPA ID WI4710457
Water Source	Surface water
Last State Inspection	Apr 2025
Lead	6 ppb (2025) 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. This system sells water to local utilities; the supplier billing this address may be one of them.

Internet Providers

Source: FCC Broadband Data Collection, based on 763 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 / 1,000
Verizon Fixed Wireless	300 / 20
Bertram Communications Fixed Wireless	100 / 20
AT&T Fixed Wireless · DSL · Fiber in parts of the area	100 / 20
T-Mobile Fixed Wireless	100 / 20

May also be available: TDS Telecom.

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