Updated Triplex Income
518 S Helen St. Sioux City, IA 51106
For Sale
$207,000
MULTI_FAMILY - Sioux City, IA
Property Size1,584 SF
Lot Size0.20 Acres
Price / SF$130.68
Days on Market92
Property Features for 518 S Helen St.
General Information
Property type
Residential Multi Family
Property subtype
Other
Zoning
nc-4
Bedrooms
3
Bathrooms
3
Rooms
Bedroom 1, Bedroom 2, Bathroom 2, Bathroom 3, Bathroom 1, Bedroom 3
Standard status
Active
APN
894735152008
Size
1,584 SF
Lot size
0.20 Acres
Taxes and HOA fees
Tax Year
2024
Tax Description
TABLE LOT 4 BLK 6
Tax Annual Amount
2773
Utilities
Heating system
Forced Air
Building Details
Year built
1920
Number of units
3
Listing Agency:
Gateway Real Estate Advisors
(712) 226-8000
Listed By:
Stephanie Dattolico
(712) 898-8091
Added: Apr 29
Changed: Jul 29
Last Checked: Jul 29 at 1:06PM
MLS# 832750
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 well-maintained triplex offers three individual units within a single building. The layout includes a 2-bedroom unit on the upper level, a practical 1-bedroom unit on the main level, and an efficient studio in the rear. Each space has been updated with modern flooring and general improvements intended to support reliable, low-maintenance ownership.
The property is located on Sioux City’s east side at 518 S Helen St. Owner-paid utilities include water, sewer, and trash for all units, and electric for unit 3.
Zoning is listed as nc-4. The lot size is approximately 0.2 acres, and the property size is listed as 1,584 square feet.
The property is located on Sioux City’s east side at 518 S Helen St. Owner-paid utilities include water, sewer, and trash for all units, and electric for unit 3.
Zoning is listed as nc-4. The lot size is approximately 0.2 acres, and the property size is listed as 1,584 square feet.
Key Highlights
- Well‑maintained triplex at 518 S Helen with three separate units
- Unit mix: 2‑bedroom upper unit, 1‑bedroom main‑level unit, and rear studio
- Updates in each unit include modern flooring and general improvements
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 | $18.1k | $11.40 |
| − Vacancy | −$858 | −$0.54 |
| EGI | $17.2k | $10.86 |
| − OpEx | −$5.2k | −$3.26 |
| NOI | $12.0k | $7.60 |
1,584 SF · lease $11.40/SF/yr · vacancy 4.75% · expense 30.00%
Alternative Uses
Best Use
Multifamily LT 5
$172.0K
$150.5K – $200.7K
NOI $12,040 @ 7.0% cap · market cap 5.82%
Second Best
Apartment 5plus
$158.9K
$139.0K – $185.4K
NOI $11,123 @ 7.0% cap · market cap 5.37%
Theoretical Best
Specialty Retail
$238.0K
$208.3K – $277.7K
NOI $16,662 @ 7.0% cap · market cap 8.05%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Location Intelligence
Current Use
Frequently Asked Questions
What type of property is this?
Triplex - Well-maintained triplex with three updated units, including a rear studio, on Sioux City’s east side.
Where is this triplex located?
The property is located at 518 S Helen St. Sioux City, IA.
What is the asking price?
The asking price for this property is $207,000.
What are key features of this property?
This property features: Well‑maintained triplex at 518 S Helen with three separate units; Unit mix: 2‑bedroom upper unit, 1‑bedroom main‑level unit, and rear studio; Updates in each unit include modern flooring and general improvements
