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Two-Unit Duplex with Garage
For Sale
$174,900

4136 N 21st St, Milwaukee, WI 53209

Residential income property with refreshed upper-level finishes, a fenced yard, and established occupancy on the first floor.

Property SizeContact for details
Days on Market9

Property Features for 4136 N 21st St

General Information

Standard status Active
Total Parking Spaces 2
Property subtype Two Family Home
Zoning RT2

Additional Details

Highway Access Yes
Multifamily Units 2

Taxes and HOA fees

Annual Taxes $2,692

Amenities

fenced backyard
garage

Building Details

Year Built 1928
Buildings 1
Units 2
Tenancy Multi
Listing Agency: Coldwell Banker Realty
Listed By: Angelena Allen · License #81664-94
Source: Therealtycompanyllc
Added: Aug 3 Changed: Aug 10 Last Checked: Aug 10 at 4:59AM

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 Coldwell Banker Realty

Investment Insights

Based on property information with market context.

Built in 1928, this duplex contains two residential units with distinct updates and occupancy details. The upper unit has fresh paint and newer flooring, while the first-floor unit is leased to a long-term tenant. A two-car garage with a concrete slab provides covered parking and storage space, and the fenced backyard adds private outdoor area.

The property is located at 4136 N 21st St in Milwaukee, Wisconsin, with access to I-43 within minutes. RT2 zoning is listed for the property. The combination of a two-unit layout, existing first-floor tenancy, updated upper-level finishes, garage, and enclosed yard creates a straightforward residential income property configuration.

Key Highlights

  • Two‑unit duplex built in 1928
  • Upper unit freshly painted with updated flooring
  • First‑floor unit occupied by a long‑term tenant

Property Analytics

Current Use

Duplexes

Suggested Use

Top Pick Law Firm Real Estate Agency Dental Office Parking Lot & Garage Spa & Massage Center Gym & Fitness Center

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

Lease Details

2
Residential units
Multi-tenant
Tenancy
Yes
Highway access

Location Intelligence

Trade Area within ½ mile

479
Businesses Nearby

Demographics for 53209, WI

44,586
Population
21,466
Households
2.1
Avg Household Size
37
Median Age
25%
College-Educated
89%
High-School Grad
10.9 sq mi
ZIP Area
4,090
Density / Sq Mi
$45,288
Median Household Income
$33,854
Median Earnings
$980
Median Rent
$150,200
Median Home Value

Market

Vacancy Rate% for Multifamily in Midwest region

6.5% 2022
7.5% 2023
7.8% 2024
8% 2025
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Frequently Asked Questions

What type of property is this?
Duplex - Residential income property with refreshed upper-level finishes, a fenced yard, and established occupancy on the first floor.
Where is this duplex located?
The property is located at 4136 N 21st St Milwaukee, WI.
What is the asking price?
The asking price for this property is $174,900.
What are key features of this property?
This property features: Two‑unit duplex built in 1928; Upper unit freshly painted with updated flooring; First‑floor unit occupied by a long‑term tenant
More about this property
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