Three-Story Office
For Sale
$399,000
501 Douglas Street, Sioux City, IA 51101
COMMERCIAL - Sioux City, IA
Property Size4,875 SF
Lot Size0.04 Acres
Price / SF$81.85
Days on Market604
Property Features for 501 Douglas Street
General Information
Property type
Commercial Sale
Property subtype
Other
Directions
Downtown Sioux City on the corner of 5th and Douglas Street.
Subdivision
Downtown
Standard status
Active
APN
894728307009
Lot size
0.04 Acres
Taxes and HOA fees
Tax Year
2024
Tax Description
SIOUX CITY EAST S 1/2 E 66 FT LOT 7 BLK 8
Tax Annual Amount
18196
Legal Description
SIOUX CITY EAST S 1/2 E 66 FT LOT 7 BLK 8
Amenities
conference room
kitchenette
private offices
Building Details
Year built
1919
Listing Agency:
Century 21 ProLink
(712) 224-2300
Listed By:
Jennifer Rose Bass
(712) 224-2300
Added: Dec 4, 2024
Changed: Jul 29
Last Checked: Jul 31 at 8:06AM
MLS# 827060
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.
Built in 1919, this three-story office building totals 4,875 SF, with approximately 1,625 SF per floor. The property has undergone over $750,000 in renovations and features expansive windows and high ceilings. The first floor includes a spacious open work area or conference room, a kitchenette, and two restrooms. The second floor offers five private offices, an open work space, and a restroom. The third floor provides a large conference room or work area and a restroom. An unfinished basement spans the entire footprint for additional space.
Located at 501 Douglas Street in Sioux City, the building also features a notable mural on the west side titled "Yawar Fiesta," created by artist Martin Ron. The ground-floor spaces may be eligible for the Sioux City Downtown Tenant Improvement Program, which provides financial assistance to help cover build-out costs.
The building’s interior flexibility, combined with its restored condition and available unfinished basement space, supports a range of office configurations across all three levels.
Located at 501 Douglas Street in Sioux City, the building also features a notable mural on the west side titled "Yawar Fiesta," created by artist Martin Ron. The ground-floor spaces may be eligible for the Sioux City Downtown Tenant Improvement Program, which provides financial assistance to help cover build-out costs.
The building’s interior flexibility, combined with its restored condition and available unfinished basement space, supports a range of office configurations across all three levels.
Key Highlights
- 3‑story office building built in 1919 with 4,875 SF total (1,625 SF per floor)
- Expansive windows and high ceilings for an open work environment
- Main level includes a spacious open work area or conference room, kitchenette, and 2 restrooms
Financial Insights For Office B
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 | $45.0k | $9.24 |
| − Vacancy | −$12.2k | −$2.49 |
| EGI | $32.9k | $6.75 |
| − OpEx | −$8.2k | −$1.69 |
| NOI | $24.7k | $5.06 |
4,875 SF · lease $9.24/SF/yr · vacancy 26.98% · expense 25.00%
Alternative Uses
Best Use
Office B
$352.4K
$308.4K – $411.2K
NOI $24,669 @ 7.0% cap · market cap 6.18%
Second Best
—
—
no second resolved use
Theoretical Best
Specialty Retail
$732.6K
$641.0K – $854.7K
NOI $51,279 @ 7.0% cap · market cap 12.85%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Property Profile
Current Use
Location Intelligence
Trade Area within ½ mile
2,328
Businesses Nearby
Explore this area
Business Placement
Demographics for 51101, IA
1,146
Population
723
Households
1.6
Avg Household Size
39
Median Age
11%
College-Educated
84%
High-School Grad
1.2 sq mi
ZIP Area
955
Density / Sq Mi
$18,103
Median Household Income
$25,661
Median Earnings
$676
Median Rent
Market
Vacancy Rate% for Office in Midwest region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Office building - Built in 1919 and fully restored, this three-story office building includes multiple restrooms, open work areas, and unfinished basement space.
Where is this office building located?
The property is located at 501 Douglas Street Sioux City, IA.
What is the asking price?
The asking price for this property is $399,000.
What are key features of this property?
This property features: 3‑story office building built in 1919 with 4,875 SF total (1,625 SF per floor); Expansive windows and high ceilings for an open work environment; Main level includes a spacious open work area or conference room, kitchenette, and 2 restrooms
