Add Listing
    For Sale
    • For Sale
    • For Lease
    • Recently Sold
    • Property Lookup
    • Brokers
    Back to Search

    501 Douglas Street Sioux City, IA 51101

    View on Map
    Claim this Listing
    Loading data...
    Loading data...
    Loading data...
    For Sale
    $499,000

    Three-story office building featuring a prominent mural and recent renovations.

    Type:Commercial/Industrial
    Property size:
    4,875 SF
    Lot size:
    0.04 Acres
    Price / SF:
    $102/SF
    Added:
    Mar 12, 2026
    Days on Market:
    55
    Last Refresh:
    Apr 6 at 1:27 am

    Property Features for 501 Douglas Street

    General Information

    Standard status
    Active
    Size
    4,875 SF
    Lot size
    0.04 Acres
    Property subtype
    Commercial/Industrial

    Building Details

    Year Built
    1919

    We can help!

    Listing Contact
    Jennifer Rose Bass
    Jennifer Rose Bass

    Listing agent Jennifer Rose Bass

    Listing office Century 21 ProLink

    Listing date Mar 12, 2026

    Source Exitrealty

    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 Century 21 ProLink

    Overview

    Renovated Office Building with Mural

    The property at 501 Douglas, also known as The Buffalo Building, features the mural “Yawar Fiesta” by artist Martin Ron on its west side. Constructed in 1919, this three-story building offers 4,875 square feet of space, with each floor comprising 1,625 square feet. The building has undergone over $750,000 in renovations. The first floor includes an open work area or conference room, a kitchenette, and two restrooms. The second floor is designed with five private offices, an open work space, and a restroom. The third floor features a large conference room or work area, along with a restroom. The building also has an unfinished basement that spans the entire footprint. The property features expansive windows and high ceilings. The ground floor spaces of this property may be eligible for the Sioux City Downtown Tenant Improvement Program, which provides financial assistance to help cover build out costs.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Office buildings

    Suggested Use

    Real Estate Agency Restaurant Law Firm Spa & Massage Center Dental Office Hair Salon Nail Salon Building Supply Auto Repair Shop Gym & Fitness Center

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

    Location Insight

    • Map
    • Local Demand
    City
    Sioux City
    County
    Woodbury
    State
    Iowa
    Longitude
    -96.4068
    Latitude
    42.4956

    Nearby Similar for Sale

    • $397,500

      Sioux City Commercial Property

      Well-located commercial property with proven rental income and future potential.
      4242 GORDON DR, Sioux City, IA 51106
      View Details
    • $700,000

      Prime Corner Location in Sioux City

      Two-story commercial building in Sioux City's entertainment district.
      501 Pearl Street, Sioux City, IA 51101
      View Details
    • $650,000

      Sioux City Investment Opportunity

      Versatile commercial property with multiple revenue streams in Sioux City.
      413-15 Nebraska Street, Sioux City, IA 51101
      View Details
    • $550,000

      Turnkey Investment in Sioux City

      Fully leased commercial spaces with long-term tenants and stable income.
      1923 Pierce Street, Sioux City, IA 51104
      View Details
    • $315,000

      Corner Lot Office Building

      Prime office building with modern updates and private parking.
      623 Jackson Street, Sioux City, IA 51101
      View Details
    • $850,000
      6,625 SF

      Fully Occupied Multi-Unit Investment

      Thirteen-unit property generating over $9,000 monthly income.
      2429-47 Williams Ave., Sioux City, IA 51103
      View Details
    • $2,450,000

      High-Traffic Retail Center For Sale

      Well-maintained retail center with strong tenant mix in Sioux City.
      2800-2830 Hamilton Blvd., Sioux City, IA 51104
      View Details
    • $634,900
      5,478 SF

      Sioux City Multi-Unit Investment

      Nine fully occupied townhomes near amenities, sold as a package.
      2311-2403 Virginia St, Sioux City, IA 51104
      View Details
    • Contact for pricing

      Sioux City Shopping Center Space

      Regional shopping center with major upgrades planned and high traffic.
      5001 Sergeant Road, Sioux City, IA 51106
      View Details
    • Contact for pricing

      Regional Shopping Center For Sale

      Regional shopping center with major upgrades planned in Sioux City.
      5001 Sergeant Road, Sioux City, IA 51106
      View Details
    • $40,000

      Established Smoke and Vape Shop

      Thriving smoke and vape shop business opportunity for sale.
      3148 Singing Hills Blvd, Sioux City, IA 51106
      View Details
    • $2,600,000

      Renovated Hotel Near Sioux Airport

      71-room hotel with recent renovations and expansion potential.
      6166 HARBOR DR, Sioux City, IA 51111
      View Details

    FAQs

    What type of property is this?
    Office building - Three-story office building featuring a prominent mural and recent renovations.
    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 $499,000.
    What are key features of this property?
    This property features: Extensive recent renovations totaling over $750,000.; Located in the iconic 'Buffalo Building' featuring the renowned 'Yawar Fiesta' mural by Martin Ron.; Spacious 4,875 SF three‑story building with 1,625 SF per floor.
    (712) 224-2300
    We can help!
    Listing Contact
    Jennifer Rose Bass
    Jennifer Rose Bass
    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
    501 Douglas Street, Sioux City, IA 51101
    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!