Parcel 12-5000-00-00

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Owners

LEMMER, JAMES R/DIANA

540 OLSON AVE
OSHKOSH, WI 54901-1131

Parcel Summary

Location 540 OLSON AVE
PAD Type Code 101: Ranch
Zoning SR-3
Acreage 0.405

Assigned Districts

State CodeDistrict Name
001200FVTC
266City of Oshkosh
4179Oshkosh School District
70Winnebago County
Ward 12

Legal Description

THAT PRT OF NE1/4 NE1/4 DESC AS COM AN SE COR LOT 6 BLK 1 OLSON ACRES & N LI OLSON AVE E 105 FT N 168 FT PAR TO E LI LOT 6, W 105 FT TO NE COR LOT 6, S 168 FT TO BEG NE1/4 SEC
2

Assessed Value History

Assessment Year 2025 2024 2023 2022 2021 2020
Land Value$42,400$42,400$30,300$30,300$30,300$30,300
Building Value$237,100$237,100$152,000$152,000$127,900$127,900
Total Value$279,500$279,500$182,300$182,300$158,200$158,200
Average Assessment Ratio0.97670.95840.69200.74990.82870.8894
Estimated Fair Market Value$286,200$291,600$263,400$243,100$190,900$177,900
Parcel Acres0.4100.4100.4100.4100.4100.410
Tax Classification(s)ResidentialResidentialResidentialResidentialResidentialResidential

Document/Transfer/Sales History

Document
Number		Sale DateDeed TypeV/ISale ValidationReal
Estate
Value		Multi
Parcel
Sale		Ownership
08018821992-06-19Improved2 - Valid improved sale$76,000Grantee: LEMMER, JAMES R/DIANA

Building Information

Building # 1, Section # 1, Ranch

StyleYear BuiltQuality/GradeHeated Sq Ft% CompleteCondition
Ranch1968C+1608100.00%Good

Building Data

DescriptionUnits/Details
Living/Apart. Units1
Stories1 story
Roof TypeNo Code
Basement TypeBelow Grade
Exterior WallAlum/vinyl
Masonry Adjustment SF0
HeatingGas, forced air
Air ConditioningA/C (same ducts)
Bedrooms3
Bath-Full1
Bath-Half1
Whirlpool0
Additional Fixtures1
Hot Tub0
Plumbing Rough In0
Family Rooms0
Other Rooms5
Masonry Fireplace Stacks0
Masonry Fireplace Openings0
Masonry Additional Stories0
Metal Fireplace Stacks1
Metal Fireplace Openings1
Metal Additional Stories0
Gas Fireplace Openings0

Sub Areas

TypeGross AreaPercent of BaseAdjusted Area
1F/01,608100%1,608
AFG572100%572
B1,388100%1,388
CP168100%168
CP400100%400
OFP66100%66
1F/0=[MULTIPLIER=1;ORIG=0,0] N4 W10 N22 E2 N12 E29 S12 E19 S26 W40 $ AFG=[MULTIPLIER=1;ORIG=-10,-4] W26 N22 E26 S22 $ CP=[MULTIPLIER=1;ORIG=-8,-26] W14 N12 E14 S12 $ CP=[MULTIPLIER=1;ORIG=1,-38] N20 E20 S20 W20 $ B=[MULTIPLIER=1;ORIG=0,0] N26 W8 N12 E29 S12 E19 S26 W40 $ OFP=[MULTIPLIER=1;ORIG=13,0] E11 S6 W11 N6

Building # 2, Section # 1, GAZEBO

StyleYear BuiltQuality/GradeHeated Sq Ft% CompleteCondition
GAZEBO2002B0100.00%Good

Building Data

DescriptionUnits/Details
Width12
DEPTH16

Sub Areas

TypeGross AreaPercent of BaseAdjusted Area
OBI192100%192
OBI=[MULTIPLIER=1;ORIG=26,-40] N16 E12 S16 W12

Land Lines

Land LineTax ClassificationAcresSq. Ft.WidthDepthValue
1Residential0.4117,642105.00168.00$42,400

Photo

parcel image

Disclaimer

All parcel data on this page is for use by the City of Oshkosh Assessor's Office for assessment purposes only. The summary data on this page may not be a complete representation of the parcel or of the improvements thereon. Building information, including unit counts and number of permitted units, should be verified with the appropriate City Department. Zoning information should be verified with Community Development. This is a true and accurate copy of the property assessment records of the City of Oshkosh Assessor's Office, Winnebago County, as of December 09, 2025.