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    The Largest CRE Database in the US with Over 1 Million Listings
    Property profile & analytics

    18300 Cascade S Ave Seattle, WA 98188-4746

    • Office buildings
    • 52,755 SF
    • 2.62 lot acres
    OFF-MARKET
    Last Sale
    Mar 28, 2022
    $18,020,000
    Value Estimations
    $16,635,000
    Show details
    Cap Rate Potential
    5.7%
    Office buildings
    Location Intelligence
    Property ID
    US90-1683753
    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

    • Thrift Books office / Corporate Office
    • Madrona Specialty Foods LLC / Corporate Office
    • Theresa Lock, PhD / Psychotherapist / Doctor
    • HarrisBiomedical Compliance Services / Business Management Consultant / Consultant
    • Lotus Behavioral Health Llc / Mental Health Clinic / Psychiatric Hospital

    Property Details for 18300 Cascade S Ave

    Year built
    1981
    Construction
    MASONRY/CONCRETE MASONRY UNITS (CMUS)
    Lot size
    2.62 lot acres
    Property size
    52,755 SF
    Zone code
    C/LI
    Property type
    Office buildings
    APN
    788890-0175
    APU
    7888900175

    Value Estimations

    based on Realmo’s proprietary methodology

    • AI approach

      Method
      Estimation
      Statistic approach
      $17,415,000
      ML approach
      $8,185,000

    • CAP approach

      CAP Return
      Estimation
      6%
      $16,465,000
      6.5%
      $15,200,000
      7%
      $14,115,000

    • Comparable approach

      Method
      Estimation
      Statistic Estimate
      $16,180,000
      Market price range: $10.8M - $30.5M

    • Alternative Use

      Use
      Estimation
      OFFICE BUILDING
      $18,645,000
      Current use
      RESTAURANT
      $27,685,000
      Change: +49% Conversion: Moderate
      COMMERCIAL (GENERAL)
      $26,695,000
      Change: +43% Conversion: Easy
      AUTO REPAIR, GARAGE
      $21,705,000
      Change: +16% Conversion: Difficult
      RETAIL STORES
      $21,155,000
      Change: +13% Conversion: Moderate
      APARTMENT HOUSE (5+ UNITS)
      $18,710,000
      Change: +0% Conversion: Easy
      MEDICAL BUILDING
      $18,140,000
      Change: -3% Conversion: Easy
      WAREHOUSE, STORAGE
      $15,585,000
      Change: -16% Conversion: Difficult

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

    Location Insight

    • Map
    • Local Demand
    City
    Seattle
    County
    King
    State
    Washington
    Longitude
    -122.248
    Latitude
    47.4368
    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
    $86,227
    $1,880,100
    $5,914,800
    $7,794,900
    -
    $1,880,100
    $5,914,800
    $7,794,900

    Comparable in this City

    • Value Estimation
      $210,000
      7,872 SF

      2821 154th St

      OFFICE BUILDING • 7,872 SF
      2821 154th St, Seatac, WA 98188-2034
      View Details
    • Value Estimation
      $520,000
      25,962 SF

      18125 Andover W Park

      OFFICE BUILDING • 25,962 SF
      18125 Andover W Park, Tukwila, WA 98188-4704
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    • Value Estimation by Request
      13,886 SF

      19600 International Blvd

      OFFICE BUILDING • 13,886 SF
      19600 International Blvd, Seatac, WA 98188-5481
      View Details
    • Value Estimation by Request
      24,532 SF

      19639 28th Ave Sa

      OFFICE BUILDING • 24,532 SF
      19639 28th Ave Sa, Seatac, WA 98188-5128
      View Details
    • Value Estimation
      $330,000
      9,868 SF

      15439 53rd S Ave

      OFFICE BUILDING • 9,868 SF
      15439 53rd S Ave, Tukwila, WA 98188-2396
      View Details
    • Value Estimation by Request
      36,280 SF

      760 Andover W Park

      OFFICE BUILDING • 36,280 SF
      760 Andover W Park, Tukwila, WA 98188-3322
      View Details

    Similar Nearby for Sale

    • Contact for pricing
      15,519 SF

      Flexible Use Development Site

      Development site near Southcenter Mall with access to I-5.
      444 Andover Park East, Tukwila, WA 98188
      View Details
    • Contact for pricing
      25,300 SF

      Southcenter Office Building Suites

      Office suites available in convenient Southcenter location with easy access.
      320 Andover Park E, Tukwila, WA 98188
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    • Contact for pricing
      12 SF

      Two-Story Office Building Available

      Two-story office building with flexible spaces and ample parking.
      19530 International Blvd, Seattle, WA 98188
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    • Contact for pricing
      33,780 SF

      Medical Office Building Southcenter

      Medical office building with suites available in a central location.
      411 Strander Blvd, Tukwila, WA 98188
      View Details
    • $8,989,000
      26,674 SF

      Tukwila Freestanding Building For Sale

      26,674 SF building with office space and high ceilings.
      1226 Andover Park E, Tukwila, WA 98188
      View Details
    • Contact for pricing
      2 SF

      Retail Space in Parking Garage

      Retail space available within a 24-hour airport parking facility.
      18613 International Blvd, Seattle, WA 98188
      View Details

    Similar Nearby for Lease

    • $15 SF/Yr
      12,100 SF

      Shores I Office Building, Seatac

      Prime Seatac Office Space, Ample Parking
      19530 International Boulevard | Seatac, WA 98188, Seatac, WA 98188
      View Details
    • $34 SF/Yr
      2,421 SF

      Tukwila Office Space Available

      Office space available for lease in Tukwila, Washington.
      16400 Southcenter Pkwy, Tukwila, WA 98188
      View Details
    • $18 SF/Yr
      9,374 SF

      Tukwila Flex Space For Sale/Lease

      9,374 SF Flex Space, High Visibility
      131 Andover Park, Tukwila, WA 98188
      View Details
    • $2.00 SF/Yr
      2,526 SF

      Tukwila Flex Space Available

      Centrally located office and industrial spaces with quick freeway access.
      701 Industry Dr, Tukwila, WA 98188
      View Details
    • $1.00 SF/Yr
      883 SF

      Tukwila Office Space For Rent

      Centrally located office space with quick freeway access and on-site management.
      930-948 Industry Dr, Tukwila, WA 98188
      View Details
    • Contact for pricing
      1,769 SF

      Tukwila Office Space Available

      Office space for rent with abundant parking and convenient access.
      1101 Andover Park W, Tukwila, WA 98188
      View Details
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    18300 Cascade S Ave
    Seattle, WA 98188-4746
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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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