Active

Price cut: $40.1K (9/8)

$399,900

307 Prospect Ave, Janesville, WI 53545

3beds

2,700sqft

$3,345/mo

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Single Family Residence

Built in 1953

0.77 Acres Lot

$395,700 Zestimate^®

$148/sqft

$-- HOA

What's special

Tucked away on a rare wooded lot in the heart of Janesville, this architecturally distinctive home blends timeless mid-century design with modern comfort. Inspired by Prairie-style architecture, the residence showcases soaring ceilings, expansive windows, warm natural materials, and an open-concept floor plan that fills the home with natural light. Situated on nearly an acre of mature trees, the property offers a private retreat while remaining just minutes from downtown amenities, dining, shopping, and the Riverwalk. 3 main level bedrooms combine with a beautifully updated bathroom for ideal living. The lower level features an expansive laundry room, flex room, multiple workshop spaces as well as a den.

--: on Zillow
1,171: views
100: saves

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms: 3
Bathrooms: 2
Full bathrooms: 2
Main level bathrooms: 1

Primary bedroom

Level: Main
Area: 260
Dimensions: 20 x 13

Bedroom 2

Level: Main
Area: 270
Dimensions: 15 x 18

Bedroom 3

Level: Main
Area: 209
Dimensions: 19 x 11

Dining room

Level: Main
Area: 198
Dimensions: 18 x 11

Family room

Area: 252
Dimensions: 14 x 18

Kitchen

Features: Range/Oven, Refrigerator, Dishwasher, Microwave, Disposal
Level: Main
Area: 285
Dimensions: 19 x 15

Living room

Level: Main
Area: 576
Dimensions: 32 x 18

Heating

Forced Air, Radiant

Cooling

Central Air

Appliances

Included: Washer, Dryer, Water Softener Included
Laundry: Lower Level

Features

Great room, Vaulted Ceiling(s), Den/Office
Basement: Full,Walk-Out Access,Partially Finished
Number of fireplaces: 1
Fireplace features: 1 fireplace, Wood Burning

Interior area

Total structure area: 2,700
Total interior livable area: 2,700 sqft
Finished area above ground: 2,200

Property

Parking

Total spaces: 2
Parking features: 2 car, Attached, Underground, Heated Garage
Attached garage spaces: 2
Has uncovered spaces: Yes

Features

Levels: One
Stories: 1
Patio & porch: Patio

Lot

Size: 0.77 Acres
Features: Near Public Transit, Sidewalk
Residential vegetation: Wooded

Details

Parcel number: 0136200258
Zoning: res

Construction

Type & style

Home type: SingleFamily
Architectural style: Ranch,Prairie/Craftsman
Property subtype: Single Family Residence

Materials

Wood Siding, Brick

Condition

Year built: 1953

Utilities & green energy

Sewer: Public Sewer
Water: Public
Utilities for property: Cable Available

Community & HOA

Community

Subdivision: prospect hill

Location

Region: Janesville

Financial & listing details

Price per square foot: $148/sqft
Tax assessed value: $349,200
Annual tax amount: $5,964
Date on market: 6/8/2026
Inclusions: refrigerator, dishwasher, oven, cooktop, washer, dryer, chair and table in family room, breakfast nook in kitchen
Exclusions: sellers personal property

Estimated market value

$395,700

$376,000 - $415,000

$2,016/mo

Price history

Date	Event	Price
9/8/2026	Price change	$399,900-9.1%$148/sqft
Source: SCWMLS #2025286 Report a problem
7/28/2026	Price change	$440,000-2.2%$163/sqft
Source: SCWMLS #2025286 Report a problem
6/11/2026	Listed for sale	$450,000+132%$167/sqft
Source: WIREX MLS #2025286 Report a problem
11/29/2017	Sold	$194,000$72/sqft
Source: Public Record Report a problem

Public tax history

Year	Property taxes	Tax assessment
2025	$6,256 +4.9%	$349,200
2024	$5,964 -0.4%	$349,200
2023	$5,987 +11.2%	$349,200 +54.2%
2022	$5,382 -0.8%	$226,400
2021	$5,427 +4.8%	$226,400
2020	$5,181 +2.3%	$226,400
2019	$5,062 +14.1%	$226,400 +34.7%
2018	$4,437	$168,100 +0.4%
2017	$4,437 +6.2%	$167,500
2016	$4,179 +5.8%	$167,500
2014	$3,949 -1.8%	$167,500
2013	$4,020 +0.9%	$167,500
2012	$3,985 -1.2%	$167,500
2011	$4,033	$167,500 +18.8%
2010	--	$141,000
2009	--	$141,000
2008	--	$141,000
2007	--	$141,000
2006	--	$141,000