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    Property profile & analytics

    3825 128th St Tukwila, WA 98168-2519

    • Office buildings
    • 2,530 SF
    • 1.41 lot acres
    OFF-MARKET
    Value Estimations
    $580,000
    Show details
    Cap Rate Potential
    Location Intelligence
    Property ID
    US90-2100545
    The Realmo ID is a unique identifier assigned to every property, incorporating country codes and precise geo-coordinates for 300x300-foot land blocks. It enables standardized data collection and seamless integration of disparate sources such as ownership, tax, title data and physical specifications. By aggregating current and historical records, the Realmo ID powers advanced analytics and delivers deep, verifiable insights for real estate professionals.

    Current Use by Public Records

    • Isalis / (Bike/Boat/Book/etc) Store
    • Party City / Party Supply Store / (Bike/Boat/Book/etc) Store
    • Skunk Funk / Big Box & Wholesale Store
    • Carl's Trading Co / Hat Shop
    • Bushka's Kitchen LLC / (Bike/Boat/Book/etc) Store

    Property Details for 3825 128th St

    Year built
    2017
    Construction
    MASONRY/CONCRETE MASONRY UNITS (CMUS)
    Lot size
    1.41 lot acres
    Property size
    2,530 SF
    Zone code
    NCC
    Property type
    Office buildings
    APN
    238420-0010
    APU
    2384200010

    Value Estimations

    based on Realmo’s proprietary methodology

    • Alternative Use

      Use
      Estimation
      OFFICE BUILDING
      $895,000
      Current use
      MEDICAL BUILDING
      $870,000
      Change: -3% Conversion: Easy
      WAREHOUSE, STORAGE
      $745,000
      Change: -16% Conversion: Difficult

    Get a detailed, property-specific valuation — fast and free

    Location Insight

    • Map
    • Local Demand
    City
    Tukwila
    County
    King
    State
    Washington
    Longitude
    -122.284
    Latitude
    47.4883
    CBSA code
    42660
    CBSA name
    SEATTLE-TACOMA-BELLEVUE, WA METROPOLITAN STATISTICAL AREA

    Property Tax & Assessments

    Tax date
    Tax Amount
    Assessed Land Value
    Assessed Improvement Value
    Total Assessed Value
    Applied Tax Rate
    Land Market Value
    Improvement Market Value
    Total Market Value
    2022
    $3,040
    $0.00
    $0.00
    $0.00
    -
    $0.00
    $0.00
    $0.00

    Comparable in this City

    • Value Estimation
      $675,000
      3,179 SF

      10868 Marginal S Way

      OFFICE BUILDING • 3,179 SF
      10868 Marginal S Way, Seattle, WA 98168
      View Details
    • Value Estimation
      $2,130,000
      12,000 SF

      14501 Interurban S Ave

      OFFICE BUILDING • 12,000 SF
      14501 Interurban S Ave, Tukwila, WA 98168-4657
      View Details
    • Value Estimation
      $1,045,000
      7,300 SF

      14027 Interurban S Ave

      OFFICE BUILDING • 7,300 SF
      14027 Interurban S Ave, Tukwila, WA 98168-4722
      View Details
    • Value Estimation by Request
      2,011 SF

      11458 1st S Ave

      OFFICE BUILDING • 2,011 SF
      11458 1st S Ave, Seattle, WA 98168-2004
      View Details
    • Value Estimation
      $560,000
      7,530 SF

      14973 Interurban S Ave

      OFFICE BUILDING • 7,530 SF
      14973 Interurban S Ave, Tukwila, WA 98168-4600
      View Details
    • Value Estimation
      $840,000
      4,730 SF

      12611 Des Moines Memorial S Dr

      OFFICE BUILDING • 4,730 SF
      12611 Des Moines Memorial S Dr, Seattle, WA 98168-2267
      View Details

    Similar Nearby for Sale

    • Contact for pricing

      Tukwila Office Building For Sale

      Office building for sale in Tukwila, Washington.
      14601 Interurban Ave South, Tukwila, WA 98168
      View Details
    • Contact for pricing
      31,363 SF

      Tukwila Office Space Available

      Divisible office space with high image and ample parking.
      11521 E Marginal Way, Tukwila, WA 98168
      View Details
    • Contact for pricing

      Southcenter Plaza Office Suites

      Office suites available in a centrally located park-like setting.
      14900 Interurban Ave S, Seattle, WA 98168
      View Details
    • Contact for pricing

      Remodeled Mixed-Use Corner Lot

      Remodeled mixed-use building with warehouse, office, and apartments.
      108 S 108Th St, Seattle, WA 98168
      View Details
    • $3,500,000
      6,000 SF

      Remodeled Mixed-Use Corner Lot

      Remodeled mixed-use building with apartments, office, and warehouse space.
      108 108Th St, Seattle, WA 98168
      View Details
    • Contact for pricing

      Southcenter Plaza Office Suites

      Office suites in park-like setting near Green River Trail.
      14900 Interurban Ave S, Seattle, WA 98168
      View Details

    Similar Nearby for Lease

    • $26,522
      19,289 SF

      Two-Story Office Building For Rent

      81,023 SF office building with excellent highway access.
      12401 Marginal Way S, Tukwila, WA 98168
      View Details
    • Contact for pricing
      7,948 SF

      Dahlgren Office Building: Tukwila, WA

      7,948 SF Office Space - Prime Location
      13975 Interurban Avenue South | Tukwila, WA 98168, Tukwila, WA 98168
      View Details
    • $26 SF/Yr
      3,237 SF

      Tukwila Office Building For Rent

      Stand-alone office building with glass line and perimeter windows available for rent.
      13975 Interurban Ave S, Tukwila, WA 98168
      View Details
    • $179,386
      9,343 SF

      Tukwila Office and Flex Space

      Office and flex space available for lease in Tukwila.
      12830 Interurban Ave S, Tukwila, WA 98168
      View Details
    • $7,014 /Mo
      3,237 SF

      Stand-Alone Building with Glass Line

      High-quality office building with easy highway access and amenities.
      13975 Interurban Ave S, Tukwila, WA 98168
      View Details
    • Contact for pricing
      1,992 SF

      Tukwila Office Space Available

      Office space for rent with convenient access to transportation.
      14220 Interurban Ave S, Tukwila, WA 98168
      View Details
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    Tukwila, WA 98168-2519
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    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
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