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$384,900 Just Listed

  • For Sale
  • Active
  • Single Family
  • 3 Beds
  • 2 Full Baths
  • 1,618 Sq. Ft.
  • 1 Car Garage
  • Updated 6 hours ago

Next open house:

Open House: 1:00 PM - 3:00 PM

Saturday 5/2 1:00 PM - 3:00 PM

307 Union Street,Sun Prairie, WI 53590

307 Union StreetSun PrairieWI53590

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Join us at 307 Union Street on:

  • Open House: 1:00 PM - 3:00 PM

    Sunday 5/3 1:00 PM - 3:00 PM

    307 Union Street,Sun Prairie, WI 53590
    307 Union StreetSun PrairieWI53590
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Charming, updated, and full of possibilities, this 1944 Cape Cod blends timeless character with modern functionality in a peaceful, quiet-street setting. From the moment you step inside, you?ll appreciate the home?s classic appeal, highlighted by graceful arched doorways and rich hardwood floors that flow throughout much of the main living spaces. The kitchen offers a stylish modern farmhouse feel, complete with coffee & wine bar. The rear addition creates a bright and versatile living space. Upstairs, the second floor provides a cozy yet spacious retreat with flexible layout options. Whether you envision a primary bedroom sanctuary, a welcoming guest space, or a tucked-away office nook, this level invites you to make it your own. The lower level, currently used as a workout area and playroom with a full bath. Ideal for creating additional living space. Step outside to enjoy a generously sized, fully fenced backyard with mature trees and perennials, the back deck is serene day & night.

Full Property Details for 307 Union St

General

  • Price: $384,900
  • Taxes: $6,690 (2025)
  • Status: Active
  • Type: Single Family
  • Source: Wirex_South_Central_Wisconsin_MLS_Corporation_SCW
  • MLS ID: 2021260
  • Updated: Today (4/30/2026)
  • Added to Site: Today

Interior

  • Interior Features: Water Softener
  • Appliances: Range/Oven, Refrigerator, Dishwasher, Disposal, Washer, Dryer

Rooms

Bathrooms

  • Total Bathrooms: 2
  • Full Bathrooms: 2
  • Bathroom: No Master Bedroom Bath

Bedrooms

  • Total Bedrooms: 3
  • Primary Bedroom: 11 x 11, Main
  • Bedroom 2: 11 x 10, Main
  • Bedroom 3: 23 x 12, Upper

Other Rooms

  • Living Room: 17 x 11, Main
  • Family Room: 12 x 11, Main
  • Kitchen: 17 x 8, Main
  • Office/Den/Study: 12 x 10, Upper

Exterior

  • Exterior Features: Deck, Patio, Fenced Yard

Parking

  • Garage: Yes
  • Attached garage: Yes
  • Garage Spaces: 1
  • Garage Description: 1 Car, Attached

Location

  • Municipality: Sun Prairie
  • County: Dane
  • Driving Directions: East on Windsor St to right on Union St. Home is on left side of the street.

School Information

  • School District: Sun Prairie
  • Elementary School: Northside
  • Middle School: Patrick Marsh
  • High School: Sun Prairie East

Heating & Cooling

  • Heating Fuel: Natural Gas
  • Heating/Cooling: Forced Air, Central Air Conditioning

Utilities

  • Water/Sewer: Municipal Water, Municipal Sewer

Structural Information

  • Architectural Style: Cape Cod
  • Description/Design: 1.5 Stories
  • Exterior Const.: Vinyl, Wood
  • Basement Desc.: Full, Partially Finished, Sump Pump, Radon Mitigation System, Block
  • Square Feet: 1,618
  • Square Feet Range: 1501 to 1750
  • Sq. Ft. Source: Assessor/Public Record
  • Year Built: 1944

Additional Structures

  • Other Structures: Storage Building

Lot Features

  • Lot Size Source: Assessor/Public Record
  • Zoning: Res
  • Lot Description: Sidewalks

Financial Considerations

  • Tax Amount: $6,690
  • Tax Year: 2025

Disclosures and Reports

  • Exclusions: Refrigerator, Dishwasher, Range/Oven, Water Softener, Disposal, Garage Door Opener/remotes
  • Inclusions: Refrigerator, Dishwasher, Range/Oven, Water Softener, Disposal, Garage Door Opener/remotes

Listed by Restaino & Associates

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— 307 Union St —

  • Restaino & Associates

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NMLS#: 1598647

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Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Find the right home insurance for your new home!

with our affiliated in-house agency

Request a Quote

Save up to an additional 20% by bundling your home and auto together!

Schools serving 307 Union St

School District:Sun Prairie Area School District
NameGradesDistance
Northside Elementary School, Sun Prairie, WI
230 West Klubertanz Drive, Sun Prairie, WI 53590
PK-50.5 mi
Prairie View Middle School, Sun Prairie, WI
400 North Thompson Road, Sun Prairie, WI 53590
6-81.9 mi
Sun Prairie East High School
888 Grove Street, Sun Prairie, WI 53590
9-121.1 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 307 Union St Get Price Alerts and Save Property

Date
Details
Price
Change
Source
4/30/2026
Listed
$384,900
11.57%
MLS
1/11/2023
Sold
$345,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 307 Union St

Year
Property Taxes
Change
Tax Assessment
Change
2025
$6,691
5%
$339,500
—
2024
$6,377
10%
$339,500
—
2022
$5,778
8%
$339,500
35%
2022
$5,335
2%
$252,300
—
2021
$5,221
3%
$252,300
6%
2020
$5,057
14%
$238,400
27%
2019
$4,449
8%
$187,600
—
2018
$4,132
4%
$187,600
—
2017
$3,984
-4%
$187,600
6%
2016
$4,166
3%
$177,700
—
2015
$4,051
7%
$177,700
7%
2014
$3,800
-5%
$165,900
—
2013
$3,988
—
$165,900
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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Listed by Restaino & Associates

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307 Union Street, Sun Prairie, WI 53590 (MLS# 2021260) is a Single Family property with 3 bedrooms and 2 full bathrooms. 307 Union Street is currently listed for $384,900 and was received on April 30, 2026. Want to learn more about 307 Union Street? Do you have questions about finding other Single Family real estate for sale in Sun Prairie? You can browse all Sun Prairie real estate or contact a Coldwell Banker agent to request more information.

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