Duplex with Detached Two-Stall
For Sale
$265,000
2021 S NEWTON ST, Sioux City, IA 51106
MULTI_FAMILY - Sioux City, IA
Property Size3,244 SF
Lot Size0.12 Acres
Price / SF$81.69
Days on Market50
Property Features for 2021 S NEWTON ST
General Information
Property type
Residential Multi Family
Property subtype
Other
Zoning
mu
Bedrooms
6
Bathrooms
4
Full bathrooms
2
Half bathrooms
2
Rooms
Bedroom 4, Bedroom 3, Bathroom 3, Bathroom 1, Bathroom 2, Bathroom 4, Bedroom 1, Bedroom 6, Bedroom 5, Bedroom 2
Directions
Maps
Subdivision
Mside Central
Standard status
Active
APN
884706204011
Size
3,244 SF
Lot size
0.12 Acres
Taxes and HOA fees
Tax Year
2024
Tax Description
ST AUBIN PLACE N 50 FT LOTS 5-6 BLK 5 S 1/2 VAC E & W ALLEY ADJ SAID LOTS ON N
Tax Annual Amount
3326
Legal Description
ST AUBIN PLACE N 50 FT LOTS 5-6 BLK 5 S 1/2 VAC E & W ALLEY ADJ SAID LOTS ON N
Amenities
laundry (washer/dryer included)
Building Details
Year built
1956
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# 833438
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 duplex at 2021 S Newton St in Sioux City is built in 1956 and configured as two separate income streams under one roof. The main-floor unit features two bedrooms, a full bathroom, a living room, and a kitchen that has been freshly painted and updated with new flooring. The main unit also has access to the basement left side, including a laundry area with a washer/dryer included, a shower, and a non-conforming bonus room with a half bath.
The second unit spans both the upper level and basement. Upstairs it includes two bedrooms, a full bathroom, a living room, and a kitchen. The basement adds two additional bedrooms and a half bath. A detached two-stall garage rounds out the property.
The property is currently tenant-occupied.
The second unit spans both the upper level and basement. Upstairs it includes two bedrooms, a full bathroom, a living room, and a kitchen. The basement adds two additional bedrooms and a half bath. A detached two-stall garage rounds out the property.
The property is currently tenant-occupied.
Key Highlights
- Duplex configuration with two income streams under one roof
- Main‑floor unit: 2 bedrooms, full bath, living room, kitchen updated with new flooring
- Second unit spans upper level and basement with 2 bedrooms upstairs plus 2 bedrooms in basement
Financial Insights For Apartment 5plus
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 | $43.6k | $13.44 |
| − Vacancy | −$2.2k | −$0.67 |
| EGI | $41.4k | $12.77 |
| − OpEx | −$18.6k | −$5.75 |
| NOI | $22.8k | $7.02 |
3,244 SF · lease $13.44/SF/yr · vacancy 5.00% · expense 45.00%
Alternative Uses
Best Use
Multifamily LT 5
$352.2K
$308.2K – $411.0K
NOI $24,657 @ 7.0% cap · market cap 9.30%
Second Best
Apartment 5plus
$325.4K
$284.8K – $379.7K
NOI $22,781 @ 7.0% cap · market cap 8.60%
Theoretical Best
Specialty Retail
$487.5K
$426.5K – $568.7K
NOI $34,123 @ 7.0% cap · market cap 12.88%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Lease Details
Multi-tenant
Tenancy
Location Intelligence
Trade Area within ½ mile
155
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
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Frequently Asked Questions
What type of property is this?
Duplex - Duplex in Sioux City, IA with two income units under one roof and a detached two-stall garage.
Where is this duplex located?
The property is located at 2021 S NEWTON ST Sioux City, IA.
What is the asking price?
The asking price for this property is $265,000.
What are key features of this property?
This property features: Duplex configuration with two income streams under one roof; Main‑floor unit: 2 bedrooms, full bath, living room, kitchen updated with new flooring; Second unit spans upper level and basement with 2 bedrooms upstairs plus 2 bedrooms in basement
