920 Mason St, Oshkosh, WI 54902 Property Records

Winnebago County property record for 920 Mason St, Oshkosh, WI 54902

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 908 sqft · built 1950
Lot Size	0.243 acres (10,600 sqft)
Owner	2 Individual Names on Record
Last Sale	$70,000 (Nov 2013)
Tax Bill	$2,684 (2024)
Deeds & Mortgages	Oct 2023 Construction Loan
Flood Zone	Zone X (minimal risk)
APN	`13-07730000`

Property Details

APN / Parcel Number

Primary APN	`13-07730000`
Alternative APN	`913-07730000`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	5 Rooms
Stories	1 Story
Building Area	908 sqft Living Area

Exterior

Year Built	Built 1950
Effective Year Built	Effective 1950
Architectural Style	Ranch
Exterior Material	Aluminum/Vinyl
Lot Area	10,600 sqft (0.243 acres)
Lot Dimensions	106 ft deep x 100 ft wide
Garage Type	Detached
Garage Area	352 sqft

Utilities, Heating & Cooling

Heating System	HVAC
Heating Fuel	Gas

Location & Zoning

Account Number	913-07730000
Street Address	920 MASON ST
City	OSHKOSH
State	WI
Zip	54902-6251
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R1
Legal Description	S 100 FT OF LOT 12 & S 100 FT OF LOT 13 GARDEN HOMES PLAT
Legal Subdivision	GARDEN HOMES PLAT
Legal Lot Number	12,13
Jurisdiction	WINNEBAGO WI
Township / Civil Division	OSHKOSH
Census Block Group	3
Census Block	3002
Census Tract	1300

Owner

Source: Winnebago County records, as of May 27, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on Record
Mailing Address	920 MASON ST, OSHKOSH, WI 54902-6251
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Last Sale	Nov 13, 2013 · Amount on Record
Deed Sale	Nov 13, 2013 · Amount on Record
Deed Document Number	20131652540
Record Updated	Sep 20, 2026

October 2023: Deed of Trust, Mortgage

Document Type	Deed of Trust
Jurisdiction	WINNEBAGO WI
Property Address	920 MASON ST, OSHKOSH, WI 54902-6251
Transaction Type	Mortgage
Record Updated	Nov 6, 2023

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	920 MASON ST, OSHKOSH, WI 54902-6251

Mortgage

Document Number	0001912043
Date	Oct 16, 2023
Instrument	1912043

Lender

Name	OSHKOSH COMMUNITY CU
Type	Credit Union
Address	OSHKOSH, WI 54901

Agreement

Type	Construction Mortgage
Amount	Amount Recorded
Term	180 Months
Due	Oct 3, 2038

Tax Assessment & Valuation

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		$156,100 (+101.42%) Land $25,500 Building $130,600
2024	$2,684.00 (+37.22%)
2023	$1,956.00 (-0.86%) Homeowner's exemption	$77,500 (-) Land $18,200 Building $59,300	$111,989 Land $26,299 Building $85,690
2022	$1,973.00 Homeowner's exemption	$77,500 Land $18,200 Building $59,300

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 26, 2019 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Policies	3 in force

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 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 686 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
AT&T Fiber · Fixed Wireless, DSL in parts of the area	5,000 / 5,000
Spectrum Cable	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
Bertram Communications Fixed Wireless	100 / 20