34
$675,000
3 bd · 2 ba · 2,018 sqft
20 Collie St, Williams Bay, WI
Donna Brongiel Team* · Mahler Sotheby's International Realty-Lake Geneva
No listing photos
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Beds
0
Baths
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Sqft
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Year built
Range $570,253 – $832,637 · as of July 14, 2026
ATTOM automated valuation model · 54 published estimates over 6.5 years · shaded band is the model's own published low-to-high range
Highest reading $708,707 in December 2025; lowest $353,447 in April 2020. The vertical scale starts at the series' own low, not at zero — it is drawn to show movement, not absolute size.
$140,289
Estimated monthly payment
$4,504/mo
Loan amount $561,156. Estimate only — your actual rate and payment depend on credit, location, and lender.
2025 roll
Within 2 miles of this home: 13 restaurants and cafés and 9 parks and green spaces.
Place data from OpenStreetMap.
Frosty Moose
West Geneva Street
Dip in the Bay
Bragii
Daddy Maxwell's
Green Grocer and Deli
Privato Private Events
Red Dogs Sandwiches
Lucke's Cantina
Frost Park
Lions Park
Butterfly Garden
Edgewater Park
Geneva Lake
Kishwauketoe Nature Conservancy
Elkhorn Road
Oak Grove Park
Birch Grove Park
School ratings (A+ to F) from HJN community data.
Williams Bay Elementary School
PK-5 · Regular · Williams Bay School District
282 students · 12.5:1 student–teacher
Williams Bay Middle School
6-8 · Regular · Williams Bay School District
145 students · 12.2:1 student–teacher
Williams Bay High School
9-12 · Regular · Williams Bay School District
170 students · 12.4:1 student–teacher
Faith Christian School
PK-12 · Regular
164 students · 8.7:1 student–teacher
Fontana Elementary School
PK-8 · Regular · Fontana Joint No. 8 School District
197 students · 9.3:1 student–teacher
Reek Elementary School
PK-8 · Regular · Linn Joint No. 6 School District
176 students · 12.1:1 student–teacher
Walworth Elementary School
PK-8 · Regular · Walworth Joint No. 1 School District
409 students · 13.6:1 student–teacher
Agape School
6-11 · Special Education
6 students · 3.3:1 student–teacher
Metro MLS
Wisconsin Real Estate Exchange (WIREX)Some properties which appear for sale on this web site may subsequently have sold or may no longer be available.
34$675,000
3 bd · 2 ba · 2,018 sqft
20 Collie St, Williams Bay, WI
Donna Brongiel Team* · Mahler Sotheby's International Realty-Lake Geneva
65$655,125
4 bd · 2 ba · 2,346 sqft
412 Kensington Ct, Lt142 Journey, Williams Bay, WI
Christine Fox Associates Team* · Shorewest Realtors, Inc.
40$650,000
4 bd · — ba · 2,074 sqft
78 Menomonee Road, Williams Bay, WI
Shari Rauland Mohr · Berkshire Hathaway Starck Real Estate · on 2 MLSs
57$697,500
4 bd · — ba · 3,093 sqft
403 Maple Lane, Williams Bay, WI
Colleen Goethal · Shorewest Realtors, Inc. · on 2 MLSs
37$675,000
4 bd · 2 ba · 2,500 sqft
76 Orchard St, Williams Bay, WI
Caleb Thomas · @properties · on 2 MLSs
49$835,000
6 bd · 3 ba · 2,600 sqft
85 Clover St, Williams Bay, WI
Kristin Stone · MELGES Real Estate, LLC