Add Listing
    For Sale
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Fully Occupied Office Building Title is generated by Realmo AI

    901-03 West 21st Street, South Sioux City, NE 68776

    View on Map
    Claim this Listing
    For Sale
    $419,000

    Office building for sale, fully occupied with three suites.

    Type:Office
    Added:
    Feb 26, 2026
    Days on Market:
    100
    Last Refresh:
    Feb 26 at 10:48 pm

    Property Features for 901-03 West 21st Street

    General Information

    Standard status
    Active
    Property subtype
    Office

    Building Details

    Year Built
    1994

    We can help!

    Listing Contact
    Beau Braunger, SIOR, CCIM

    Listing agent Beau Braunger, SIOR, CCIM

    Listing office

    Listing date Feb 26, 2026

    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 Beau Braunger, SIOR, CCIM

    HighLights

    • Fully occupied office building: Provides immediate rental income.
    • Three individual suites: Diversified income streams and tenant mix.
    • Located just off busy Hwy 77: High visibility and accessibility.
    • APOD available: Financial performance data for informed decision‑making.
    • Leases available: Transparency and understanding of tenant agreements.
    • Built in 1994: Relatively modern construction.

    Overview

    This is a fully occupied office building for sale, divided into three individual suites. The property is located just off of Highway 77.
    Location Intelligence

    Current Use by Public Records

    Office buildings

    Suggested Use

    Restaurant Real Estate Agency Law Firm Building Supply Spa & Massage Center Dental Office Big Box & Wholesale Store Auto Repair Shop Hair Salon Nail Salon

    Zoning and permitted uses should be independently verified with local authorities.

    Location Insight

    • Map
    • Local Demand
    City
    South Sioux City
    County
    Dakota
    State
    Nebraska
    Longitude
    -96.423286
    Latitude
    42.469984

    Nearby Similar for Sale

    • $350,000

      Office/Warehouse Flex Property

      Versatile office and warehouse layout with drive-thru potential and multiple overhead doors, supporting a range of light industrial uses.
      1905 A Street, South Sioux City, NE 68776
      View Details
    • Contact for pricing

      Office/Retail Suite in Plaza

      Well-lit suite with front and back entrances, multiple offices, and ample parking for professional or service tenants.
      3220 Plaza Drive, South Sioux City, NE 68776
      View Details
    • Contact for pricing

      Office Suite with Private Office

      Efficient office suite with open work area, private office, and restroom, plus on-site parking and roadway visibility.
      730 W 21st Street, South Sioux City, NE 68776
      View Details
    • $340,000

      Commercial Building in High-Visibility Location

      Fully occupied commercial building in prime South Sioux City location.
      125 E 22nd, South Sioux City, NE 68776
      View Details
    • $1,100,000
      11,495 SF

      South Sioux City Retail/Office Building

      Fully occupied retail and office building in high-traffic location.
      1027-1035 W 21st St, South Sioux City, NE 68776
      View Details
    • Contact for pricing

      Turnkey Coffee Shop Space

      Ready-to-operate cafe layout with existing equipment and a patio setting in a growing mixed-use community.
      2701 Flatwater, South Sioux City, NE 68776
      View Details
    • $350,000
      3,980 SF

      Versatile Office/Warehouse Property For Sale

      Office and warehouse space in a strong commercial corridor.
      1905 A St, South Sioux City, NE 68776
      View Details
    • $1,315,367
      10,772 SF

      Class A Office Building

      Class A office building featuring geothermal heating and cooling system.
      3311 Daniels Ln, South Sioux City, NE
      View Details
    • $780,000

      South Sioux City Warehouse

      Warehouse property available for sale in South Sioux City.
      601 East 10th Street, South Sioux City, NE 68776
      View Details
    • Contact for pricing
      4,880 SF

      South Sioux City Retail/Office Space

      Office/Retail space available on Hwy. 77 in South Sioux City.
      3210 Plaza Dr, South Sioux City, NE 68776
      View Details

    FAQs

    What type of property is this?
    Office building - Office building for sale, fully occupied with three suites.
    Where is this office building located?
    The property is located at 901-03 West 21st Street South Sioux City, NE.
    What is the asking price?
    The asking price for this property is $419,000.
    What are key features of this property?
    This property features: Fully occupied office building: Provides immediate rental income.; Three individual suites: Diversified income streams and tenant mix.; Located just off busy Hwy 77: High visibility and accessibility.
    (712) 251-8276
    We can help!
    Listing Contact
    Beau Braunger, SIOR, CCIM
    Learn More
    Request Owner's contact information
    Message sent successfully
    Error
    If you are the owner or broker of this property and would like to edit or remove this listing please send a message to web site administrator.
    Message sent successfully
    Error
    Email to Your Friends
    Link copied to clipboard
    Separate multiple addresses with a comma
    Message sent successfully
    Error

    Realmo Value Estimations

    Realmo estimates a property’s market value using a proprietary methodology that incorporates public data and user-submitted information. This cumulative value is generated by integrating a variety of conventional and innovative methods. 

    Disclaimer

    These figures are not official appraisals and should not be used as a substitute for a valuation performed by a licensed appraiser.
    Actual market value may differ due to factors not captured in the data. Estimates are offered for informational purposes only, and users should conduct independent research before making financial or investment decisions.
    By using this feature, you acknowledge that Realmo is not responsible for actions taken based on these estimates.

    AI approach

    Realmo AI Method estimates property value using machine learning models trained on millions of comparable listings, transactions, and market signals. It analyzes property features, location intelligence data, and current market dynamics to predict the most probable market value in real time.

    Realmo CapRate Calculation

    Realmo calculates the Capitalization Rate (Cap Rate) to help estimate a property's potential return on investment. The Cap Rate is a fundamental metric in commercial real estate that measures the relationship between a property's net operating income and its market value.

    How We Calculate Cap Rate

    Cap Rate Formula:
    Cap Rate (%) = (Net Operating Income / Property Value) × 100

    Net Operating Income (NOI) Formula:
    NOI = Area × Lease Rate × (1 - Vacancy Rate) × (1 - Operating Expense Ratio)

    Components

    Net Operating Income (NOI) represents the annual income a property generates after operating expenses:

    • Area: Building square footage from property records
    • Lease Rate: Annual $/sqft based on market data for the property type and geographic location
    • Vacancy Rate: Percentage of unoccupied space based on market data for the property type and location
    • Operating Expense Ratio: Operating costs as a percentage of income, varies by property type

    Property Value is derived from:

    • Recent sale price (if available)
    • Statistical models using comparable sales
    • AI-powered valuation estimates

    Example Calculation

    For a 100,000 sqft Office Building:

    • Lease Rate: $25.00/sqft/year (market data for Office in this area)
    • Vacancy Rate: 8% (market data for Office in this area)
    • Operating Expense Ratio: 35% (typical for Office properties)
    • Property Value: $15,000,000

    Step 1: Calculate NOI

    NOI = 100,000 × $25.00 × (1 - 0.08) × (1 - 0.35)
    NOI = 100,000 × $25.00 × 0.92 × 0.65
    NOI = $1,495,000/year

    Step 2: Calculate Cap Rate

    Cap Rate = ($1,495,000 / $15,000,000) × 100
    Cap Rate = 9.97%

    Property Type Considerations

    Net Operating Income calculations vary by property type due to different operating expense ratios:

    • Office: Higher expenses (30-40%) for HVAC, utilities, maintenance
    • Retail: Moderate expenses (25-35%) for common area maintenance
    • Industrial/Warehouse: Lower expenses (15-25%) for minimal tenant services
    • Multifamily: Moderate expenses (35-45%) including property management
    • Self-Storage: Lower expenses (25-35%) due to minimal maintenance

    Market lease rates and vacancy rates are specific to each property type and geographic location, reflecting local market conditions.

    Disclaimer

    These calculations are estimates for informational purposes only and should not be used as a substitute for professional financial analysis or appraisal.

    • Cap Rate calculations depend on market data that may change over time
    • Actual operating expenses, lease rates, and vacancy rates may differ from market averages
    • Individual property conditions, lease terms, and tenant quality significantly impact actual NOI
    • Property value estimates are approximations and not official appraisals
    • Cap rates vary widely by market, property condition, and investment risk profile

    Professional Guidance Recommended: Before making any investment or financial decisions, consult with licensed appraisers, commercial real estate brokers, and financial advisors who can evaluate your specific property and circumstances.
    By using this feature, you acknowledge that Realmo is not responsible for investment decisions or actions taken based on these estimates.

    Cap approach

    Capitalization Method calculates value based on estimated net operating income (NOI) and applying a market-based capitalization rate (cap rate), we estimate what a typical investor might be willing to pay for it.

    Comparable approach

    Comparable estimate is based on recent sales of similar nearby properties, adjusted for factors like size, condition, and location.

    Relative

    Relative property class coefficient uses factors that account for typical price differences between various asset types (e.g., retail vs. industrial) to provide a more accurate market-aligned estimate.

    Geo

    Comparable Sales Method, enhanced by Geo coefficients — location-based adjustment factors that reflect differences in price levels across neighborhoods, cities, or regions ensuring a more accurate, market-sensitive valuation.

    Stat Estimate

    This method estimates value based on actual market adjusted recent (~5 years) sales of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all similar sales ($/sqft) are above this value
    • Range-to: 75% of all similar sales ($/sqft) are below this value
    AI Estimate

    This method estimates value based on AI market estimation of comparable properties around by location and property type.

    • Ranges - area data calculated by industry standard IQR Outlier Removal Method
    • Range-from: 75% of all estimations ($/sqft) are above this value
    • Range-to: 75% of all estimations ($/sqft) are below this value
    Alternative use

    Estimate considers the property’s potential value if used for a different purpose-based on zoning, demand, and market feasibility.

    More about this property
    Thanks! Your message was sent.
    Error! Your message wasn't sent.
    Please enter your name
    Please enter email
    Please enter the email in the correct format
    Please enter phone
    Please enter the number in the correct format
    Please enter message
    Thank You

    You are Unsubscribed From Notifications

    Thank You for Inquiry
    901-03 West 21st Street | South Sioux City, NE 68776
    letter with green check mark
    Check your email
    We sent you the
    agent's contact details. yellow underline
    Can't find it?
    Please check your junk/spam folder.
    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!