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    Versatile Mixed-Use Building in Soap Lake Title is generated by Realmo AI

    315 E Main Street, Soap Lake, WA 98851

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    For Sale
    $475,000

    Multi-use building with storefront, spa layout, and living quarters.

    Type:Commercial
    Property size:
    1,000 SF
    Lot size:
    0.16 Acres
    Price / SF:
    $475/SF
    Added:
    Jan 23, 2026
    Days on Market:
    118
    Last Refresh:
    Apr 5 at 9:15 pm

    Property Features for 315 E Main Street

    General Information

    Standard status
    Active
    Size
    1,000 SF
    Lot size
    0.16 Acres
    Property subtype
    Commercial

    Building Details

    Year Built
    1910

    We can help!

    Listing Contact
    BRANDON DOUGLASS

    Listing agent BRANDON DOUGLASS

    Listing office WINDERMERE RE K-2 REALTY

    Listing date Jan 23, 2026

    Source Corcoran

    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 WINDERMERE RE K-2 REALTY

    HighLights

    • Prime downtown location near Soap Lake, restaurants, and entertainment.
    • Versatile multi‑use building suitable for retail, office, spa, or residential purposes.
    • Income‑producing potential with two residential units and leasable commercial space.
    • Approximately 1,000 sq ft storefront with street‑facing entrance.
    • Spa/massage‑style layout with multiple rooms and separate entrance.
    • Additional basement space for expansion or conversion.

    Overview

    This multi-use building is located in downtown Soap Lake, a short distance from the lake, restaurants, resorts, and local entertainment. The street-facing entrance features an approximately 1,000 sq ft storefront, suitable for retail, office, or service use. The rear of the building has a separate entrance leading to a spa or massage-style layout with multiple rooms that could be leased individually or utilized as part of a single business. A separate basement space provides additional potential for expansion or future conversion. The property also includes two additional living quarters suitable for residential tenants, creating a live-work or income-producing opportunity. Outdoor space adds even more flexibility for seating, gatherings, or relaxation. Soap Lake was once nationally known for its therapeutic mineral waters and historic bathing culture. This property offers possibilities in one of Soap Lake’s accessible locations.
    Location Intelligence

    Current Use by Public Records

    Storefront properties

    Suggested Use

    Real Estate Agency Restaurant Law Firm Auto Repair Shop Hair Salon Spa & Massage Center Gym & Fitness Center Nail Salon Skin Care Clinic Food Market

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

    Location Insight

    • Map
    • Local Demand
    City
    Soap Lake
    County
    Grant
    State
    Washington
    Longitude
    -119.486
    Latitude
    47.4314

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    FAQs

    What type of property is this?
    Mixed-use property - Multi-use building with storefront, spa layout, and living quarters.
    Where is this mixed-use property located?
    The property is located at 315 E Main Street Soap Lake, WA.
    What is the asking price?
    The asking price for this property is $475,000.
    What are key features of this property?
    This property features: Prime downtown location near Soap Lake, restaurants, and entertainment.; Versatile multi‑use building suitable for retail, office, spa, or residential purposes.; Income‑producing potential with two residential units and leasable commercial space.
    (509) 765-3337
    We can help!
    Listing Contact
    BRANDON DOUGLASS
    Learn More
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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.

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    315 E Main Street, Soap Lake, WA 98851
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