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Historic-Style Office Estate

711 21st Street Prairie du Sac, WI 53578

711 21st Street, Prairie du Sac, WI, 53578

$2,900,000

For Sale

$2,900,000

COMMERCIAL - Prairie Du Sac, WI

Property Size11,020 SF

Lot Size2.85 Acres

Price / SF$263.16

AddedFeb 14

Days on Market151

Last RefreshJul 15 at 8:06 am

Property Features for 711 21st Street

General Information

Property type: Commercial Sale
Property subtype: Other
Zoning: Commercial
Security features: Security Lighting
Interior features: Passenger elevator, Private Restrooms, Shared Restrooms, Reception area, Internal sprinkler, Security lighting, Private office(s)
Accessibility: Accessible Elevator Installed
Standard status: Active
APN: 172-0936-81510
Size: 11,020 SF
Lot size: 2.85 Acres

Taxes and HOA fees

Tax Year: 2024
Tax Annual Amount: 17169

Building Details

Year built: 2004
Number of units: 1
Roof type: Composition

Listing agent Daleen Heffron License #3708790

Listing office Bunbury & Assoc, REALTORS 2000 Prairie St Ste 100, Prairie Du Sac, WI

Listing date Feb 14, 2026

MLS# 2009708

Copyright © 2026 REALTORS® Association of South Central Wisconsin. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

Investment Insights

Based on property information with market context.

This one-of-a-kind commercial office property was built to commercial specifications with an architecturally distinctive, home-like feel. The multi-level layout includes expansive windows, grand dual staircases, an elevator servicing all three levels, and warm interior lighting. Interior features include a full kitchen with appliances, three full bathrooms, a theater room, an exercise room, balconies, and two porches. Exterior elements include sixteen stately columns and a standby generator.

The building sits on approximately 2.85 acres and is currently zoned Highway Business, with zoning listed more broadly as Commercial. The parcel may offer potential for division, subject to approvals, and is located in an area with surrounding residential uses.

The property is identified as approximately 11,020 square feet (per the provided records) and is offered for sale.

Key Highlights

Built in 2004 with composition roof and accessible elevator installed
Commercial building with passenger elevator and internal sprinkler plus security lighting
Interior layout includes reception area, private offices, and private/shared restrooms

Local Financial Insights For Office B

Simulate Cap Rate and NOI

NOI Build-Up

Component	$	$/SF
Gross rent	$185.1k	$16.80
− Vacancy	−$40.7k	−$3.70
EGI	$144.4k	$13.10
− OpEx	−$36.1k	−$3.28
NOI	$108.3k	$9.83

11,020 SF · lease $16.80/SF/yr · vacancy 22.00% · expense 25.00%

Alternative Uses

Best Use

Office B

$1.55M

$1.35M – $1.81M (±1% cap)

NOI $108,305 @ 7.0% cap · market cap 3.73%

Second Best

—

no second resolved use

Theoretical Best

Office A

$2.23M

$1.95M – $2.60M (±1% cap)

NOI $156,149 @ 7.0% cap · market cap 5.38%

Zoning and permitted uses should be independently verified with local authorities.

Property Analytics

Property Profile Location Intelligence

Current Use by Public Records

American Data (Bike/Boat/Book/etc) Store

Suggested Use

For sale
Office buildings
WI
Prairie du Sac
53578
711 21st Street

What type of property is this?

Office building - Unique multi-level office building with elevator access, full kitchen, theater room, and three full bathrooms.

Where is this office building located?

The property is located at 711 21st Street Prairie du Sac, WI.

What is the asking price?

The asking price for this property is $2,900,000.

What are key features of this property?

This property features: Built in 2004 with composition roof and accessible elevator installed; Commercial building with passenger elevator and internal sprinkler plus security lighting; Interior layout includes reception area, private offices, and private/shared restrooms