Fully Duplex Residential Income
For Sale
$235,000
3720-22 4TH AVE, Sioux City, IA 51106
MULTI_FAMILY - Sioux City, IA
Property Size2,114 SF
Lot Size0.19 Acres
Price / SF$111.16
Days on Market50
Property Features for 3720-22 4TH AVE
General Information
Property type
Residential Multi Family
Property subtype
Other
Zoning
mu
Bedrooms
4
Bathrooms
2
Full bathrooms
2
Rooms
Bedroom 4, Bedroom 3, Bathroom 1, Bathroom 2, Bedroom 1, Bedroom 2
Directions
maps
Subdivision
Mside Central
Standard status
Active
APN
884706251003
Size
2,114 SF
Lot size
0.19 Acres
Taxes and HOA fees
Tax Year
2024
Tax Description
ST AUBIN PLACE EX S 50 FT LOTS 1-2 BLK 4
Tax Annual Amount
3152
Legal Description
ST AUBIN PLACE EX S 50 FT LOTS 1-2 BLK 4
Building Details
Year built
1920
Number of units
2
Listing Agency:
Gateway Real Estate Advisors
(712) 226-8000
Listed By:
Nic Madsen · License #S67281000
(712) 540-6562
Added: Jun 17
Changed: Aug 4
Last Checked: Aug 5 at 2:06AM
MLS# 833442
Copyright © 2026 Northwest Iowa Regional Board of Realtors. 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 fully duplex residential income property includes two separate 2-bedroom, 1-bath units. One unit is on the main floor and the other is on the upper level, providing a straightforward duplex layout with two bedrooms and one bathroom per unit. The property also features a detached garage for additional income.
The duplex is situated on a 0.19-acre lot in Sioux City, Woodbury County, Iowa, with zoning listed as mu. The property was built in 1920.
With 100% occupancy in place, the configuration supports an owner looking to maintain a stabilized duplex with income from day one.
The duplex is situated on a 0.19-acre lot in Sioux City, Woodbury County, Iowa, with zoning listed as mu. The property was built in 1920.
With 100% occupancy in place, the configuration supports an owner looking to maintain a stabilized duplex with income from day one.
Key Highlights
- Two 2‑bedroom, 1‑bath units split between main floor and upper level
- Detached garage for additional income
- 100% occupancy reported
Financial Insights For Multifamily LT 5
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 | $24.1k | $11.40 |
| − Vacancy | −$1.1k | −$0.54 |
| EGI | $23.0k | $10.86 |
| − OpEx | −$6.9k | −$3.26 |
| NOI | $16.1k | $7.60 |
2,114 SF · lease $11.40/SF/yr · vacancy 4.75% · expense 30.00%
Alternative Uses
Best Use
Multifamily LT 5
$229.5K
$200.9K – $267.8K
NOI $16,068 @ 7.0% cap · market cap 6.84%
Second Best
Apartment 5plus
$212.1K
$185.6K – $247.4K
NOI $14,845 @ 7.0% cap · market cap 6.32%
Theoretical Best
Specialty Retail
$317.7K
$278.0K – $370.6K
NOI $22,237 @ 7.0% cap · market cap 9.46%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
100%
Occupancy
Multi-tenant
Tenancy
Location Intelligence
Trade Area within ½ mile
330
Businesses Nearby
Explore this area
Business Placement
Demographics for 51106, IA
28,655
Population
11,681
Households
2.5
Avg Household Size
35
Median Age
27%
College-Educated
93%
High-School Grad
33.5 sq mi
ZIP Area
855
Density / Sq Mi
$74,486
Median Household Income
$40,495
Median Earnings
$1,080
Median Rent
$186,300
Median Home Value
Market
Vacancy Rate% for Multifamily in Midwest region
Questions? Ask Rey
Realmo’s AI knows this listing — price, zoning, demand, history. Ask anything.
Frequently Asked Questions
What type of property is this?
Duplex - Fully duplex with two 2-bedroom, 1-bath units plus a detached garage and 100% occupancy.
Where is this duplex located?
The property is located at 3720-22 4TH AVE Sioux City, IA.
What is the asking price?
The asking price for this property is $235,000.
What are key features of this property?
This property features: Two 2‑bedroom, 1‑bath units split between main floor and upper level; Detached garage for additional income; 100% occupancy reported
