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Flex Space Business Barn with Two Overhead Doors
For Sale
$399,000

3929 County Road Kw, Port Washington, WI 53074

Flex space business barn can be split in half, with unit #7 featuring two overhead doors and plumbing roughed in.

Property Size5,000 SF
Days on Market310

Property Features for 3929 County Road Kw

General Information

Standard status Active
Size 5,000 SF
Property subtype Commercial

Building Details

Building Size 5,000 SF
Year Built 2025
Listing Agency: RE/MAX United - Port Washington
Listed By: Owen Didier · License #8430994
Source: Therealtycompanyllc
Added: Sep 30, 2025 Changed: Jul 31 Last Checked: Aug 4 at 12:34PM

Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of RE/MAX United - Port Washington

Investment Insights

Based on property information with market context.

This flex space business barn measures 50x100 and can be split in half for flexible use. Unit #7 is set up as a standalone option within the structure, with two separate overhead doors and entries. The space is offered as a shell, with no heat, drywall, or bathrooms included.

The layout includes plumbing roughed in for two bathrooms and two utility rooms, along with underfloor plumbing roughed in. A 200 amp service is included, along with a floor drain. The property was built in 2025.

Owners have the option to use the full 5,000 SF, split the space to operate one side while renting the other, or pursue both uses depending on their needs.

Key Highlights

  • 50x100 business barn that can be split in half
  • Unit #7 has two separate overhead doors and entries
  • Plumbing roughed in for 2 bathrooms and 2 utility rooms

Financial Insights For Warehouse

Simulate Cap Rate and NOI

NOI Build-Up
Vacancy
income lost from leasable area expected to sit empty during the year — subtracted from gross rent.
EGI (Effective Gross Income)
gross rent minus vacancy losses — the realistic income before paying operating costs.
OpEx (Operating Expenses)
recurring costs to operate the property (property tax, insurance, utilities, maintenance, management) — excludes financing and capital improvements.
NOI (Net Operating Income)
income a property generates after operating costs but before financing and taxes.

Component $ $/SF
Gross rent $27.4k $5.47
− Vacancy −$1.4k −$0.27
EGI $26.0k $5.20
− OpEx −$3.9k −$0.78
NOI $22.1k $4.42
5,000 SF · lease $5.47/SF/yr · vacancy 5.00% · expense 15.00%

Alternative Uses

Best Use
Warehouse
$315.5K
$276.1K – $368.1K (±1% cap)
NOI $22,085 @ 7.0% cap · market cap 5.54%
Second Best
Industrial
$260.1K
$227.6K – $303.5K (±1% cap)
NOI $18,207 @ 7.0% cap · market cap 4.56%
Theoretical Best
Office A
$1.18M
$1.03M – $1.37M (±1% cap)
NOI $82,464 @ 7.0% cap · market cap 20.67%
Zoning and permitted uses should be independently verified with authorities.

Property Analytics

Current Use

Flex space

Suggested Use

Top Pick Building Supply HVAC Service Plumbing Service Storage Facility Parking Lot & Garage Auto Repair Shop

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Location Intelligence

Trade Area within ½ mile

Well-served
Demand for This Use

Demographics for 53074, WI

13,379
Population
5,859
Households
2.3
Avg Household Size
42
Median Age
36%
College-Educated
96%
High-School Grad
30.3 sq mi
ZIP Area
442
Density / Sq Mi
$78,944
Median Household Income
$48,089
Median Earnings
$1,024
Median Rent
$276,200
Median Home Value

Market

Vacancy Rate% for Industrial in Midwest region

4.4% 2019
4.9% 2020
3.6% 2021
3.1% 2022
4.6% 2023
5% 2024
4.9% 2025
Rey
Questions? Ask Rey
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Frequently Asked Questions

What type of property is this?
Flex space - Flex space business barn can be split in half, with unit #7 featuring two overhead doors and plumbing roughed in.
Where is this flex space located?
The property is located at 3929 County Road Kw Port Washington, WI.
What is the asking price?
The asking price for this property is $399,000.
What are key features of this property?
This property features: 50x100 business barn that can be split in half; Unit #7 has two separate overhead doors and entries; Plumbing roughed in for 2 bathrooms and 2 utility rooms
More about this property
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