Date
Details
Price
Change
Source
1/12/2026
Listed
$1,449,900
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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Property Description
A prime commercial building located in the Wausau Medical Campus. This building is ideally located on 28th Avenue just blocks from Aspirus Hospital and several other medical users. Property went through a complete renovation in 2022. The main level offers eleven private offices, four bathrooms and a mezzanine which can serve multipole purposes. The lower level is currently built out as a childcare facility with a reception area, three classrooms, a gym, kitchen, nurse?s office, two private offices, three bonus rooms and plenty of storage space. The entire building has a new fire suppression system. The building also has a laundry facility, and many other recent key mechanical upgrades. The exterior is very well landscaped and features over 50 parking stalls. Possible uses include office, medical, childcare, and a school. Located on Wausau?s Northwest side near Interstate 39 for easy highway access.
Full Property Details
Full Property Details for 520 N 28th Ave
General
- Price: $1,449,900
- Taxes: $36,939 (2025)
- Status: Active
- Type: Office
- Source: Wirex_Central_Wisconsin_Board_of_Realtors_CWBR
- MLS ID: 22600107
- Updated: 1/13/2026
- Added to Site: 82 day(s) ago
Interior
- Interior Features: Smoke Alarm
Additional Information
- Other Features: Interior Sprinkler, Security System, Landscaped, Public Rest Rooms, Restroom(s), Signage Available, Smoke Detector(s)
Parking
- Parking Features: Parking Garage
Location
- Municipality: Wausau
- County: Marathon
- Driving Directions: N 28th to Modanna Dr
Heating & Cooling
- Heating Fuel: Natural Gas
- Heating/Cooling: Forced Air, Central Air
Utilities
- Water/Sewer: Municipal Water, Municipal Sewer
Structural Information
- Description/Design: Freestanding
- Exterior Const.: Brick, Brick/Stone
- Roof: Shingle
- Square Feet: 10,854
- Square Feet Range: 5001 or More
- Year Built: 1990
Unit Information
- Units in Building: 1
Lot Features
- Lot Size (Acres): 50,000
- Lot Size Range: 1 to 4.99 Acres
- Zoning: Commercial
Financial Considerations
- Tax Amount: $36,939
- Tax Year: 2025
Listed by Wimmer Real Estate Llc
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Schools
Schools serving 520 N 28th Ave
School District:Wausau School District
| Name | Grades | Distance |
|---|---|---|
Stettin Elementary School 109 North 56th Avenue, Wausau, WI 54401 | K-5 | 1.7 mi |
John Muir Middle School 1400 Stewart Avenue, Wausau, WI 54401 | 6-8 | 1.1 mi |
West High School, Wausau, WI 1200 West Wausau Avenue, Wausau, WI 54401 | 9-12 | 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 520 N 28th Ave
Tax History
Tax History for 520 N 28th Ave
Year
Property Taxes
Change
Tax Assessment
Change
2025
$36,939
-2%
$1,953,700
—
2024
$37,701
-18%
$1,953,700
9%
2023
$45,733
166%
$1,787,100
165%
2022
$17,174
3%
$673,200
—
2021
$16,620
-1%
$673,200
—
2020
$16,842
1%
$673,200
8%
2019
$16,730
1%
$623,700
—
2018
$16,498
4%
$623,700
—
2017
$15,921
3%
$623,700
—
2016
$15,489
-54%
$623,700
-52%
2015
$33,378
-1%
$1,308,100
-5%
2014
$33,564
1%
$1,381,700
—
2013
$33,233
—
$1,381,700
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 520 N 28th Ave
520 N 28th Avenue, Wausau, WI 54401 (MLS# 22600107) is a Office property. 520 N 28th Avenue is currently listed for $1,449,900 and was received on January 12, 2026. Want to learn more about 520 N 28th Avenue? Do you have questions about finding other Office real estate for sale in Wausau? You can browse all Wausau real estate or contact a Coldwell Banker agent to request more information.