Office Building with Billboard
1515 Zenith Dr, Sioux City, IA 51103
Office building with flexible floor plan and billboard opportunity.
Type:Office
Property size:
5,964 SFPrice / SF:
$96/SF- Added:
- Nov 21, 2025
- Days on Market:
- 183
- Last Refresh:
- Dec 3 at 5:41 am
Property Features for 1515 Zenith Dr
General Information
- Standard status
- Active
- Size
- 5,964 SF
- Property subtype
- Office
Building Details
- Year Built
- 1971
Listing agent James Duckett License #3185954
Listing office BILL RODGERS REALTY (352) 629-7506
Listing date Nov 21, 2025
Source Naiglobal
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 BILL RODGERS REALTY
HighLights
- High‑visibility location on I‑29 with 39,400+ vehicles passing daily, offering significant advertising potential.
- Flexible floor plan suitable for various uses, including office, retail, or lab space.
- 3‑phase power, ideal for businesses with specialized electrical needs.
- Large reception area, retail showroom, 6 private offices, conference room, and multiple work areas.
- Convenient rear double‑door for deliveries.
- Roof replaced in 2012.
Overview
This 5,964 square foot building, formerly a Girl Scouts of Iowa building, presents an opportunity to own a billboard on I-29, with a traffic count of over 39,400 vehicles per day. Located on the south end of Hamilton, east of Bomgaars HQ and west of the new KwikStar, the property was originally constructed as a computer lab with 3-phase power and remodeled into an office in 2005. The building features a flexible, square-shaped floor plan, including a large reception area, a retail showroom, six private offices along the west wall, a large conference room, two large work rooms, and a large kitchen/work room. It also contains large and small restrooms, and a rear double-door for deliveries. The building has a 9-foot drop ceiling, with a 12-foot clear height to the roof deck. Windows could be added to the six private offices. The roof was replaced in 2012. There are three HVAC rooftop units serviced by Kalin's, which are 2, 7, and 10+ years old. The hot water heater is approximately 5 years old. The property is located on Sioux City's Westside South.
Financial Insights
Value Estimation Calculated for Office B
Conservative
$335.3K
NOI $30,180 @ 9.00% cap · cautious / downside scenario
Moderate
$431.1K
NOI $30,180 @ 7.00% cap · market / base-case scenario
Aggressive
$603.6K
NOI $30,180 @ 5.00% cap · optimistic / upside scenario
NOI & Cap Rate Calculator
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.
Calculated for Office B
| Component | $ | $/SF |
|---|---|---|
| Gross rent | $55.1k | $9.24 |
| − Vacancy | −$14.9k | −$2.49 |
| EGI | $40.2k | $6.75 |
| − OpEx | −$10.1k | −$1.69 |
| NOI | $30.2k | $5.06 |
5,964 SF · lease $9.24/SF/yr · vacancy 26.98% · expense 25.00%
Alternative Use Scenarios
Best Use
Office B
$431.1K
$377.3K – $503.0K
NOI $30,180 @ 7.0% cap · market cap 5.25%
Second Best
—
—
no second resolved use
Theoretical Best
Specialty Retail
$896.2K
$784.2K – $1.05M
NOI $62,734 @ 7.0% cap · market cap 10.91%
Zoning and permitted uses should be independently verified with local authorities.
Property Profile
Location Intelligence
Current Use by Public Records
Girl Scouts
Charitable Organization
Location Insight
- Map
- Local Demand
- City
- Sioux City
- County
- Woodbury
- State
- Iowa
- Longitude
- -96.427382
- Latitude
- 42.493029
Nearby Similar for Sale
FAQs
What type of property is this?
Office building - Office building with flexible floor plan and billboard opportunity.
Where is this office building located?
The property is located at 1515 Zenith Dr Sioux City, IA.
What is the asking price?
The asking price for this property is $575,000.
What are key features of this property?
This property features: High‑visibility location on I‑29 with 39,400+ vehicles passing daily, offering significant advertising potential.; Flexible floor plan suitable for various uses, including office, retail, or lab space.; 3‑phase power, ideal for businesses with specialized electrical needs.
