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    339 Main Street Calais, ME 04619

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    Claim this Listing
    For Sale
    $335,000

    COMMERCIAL - Calais, ME

    Property size:
    4,618 SF
    Lot size:
    0.34 Acres
    Added:
    Apr 2, 2026
    Days on Market:
    16
    Last Refresh:
    Apr 17 at 11:06 pm

    Property Features for 339 Main Street

    General Information

    Property type
    Commercial Sale
    Property subtype
    Other
    Zoning
    Commercial
    Rooms
    Basement
    Basement
    Unfinished, Full
    Standard status
    Active
    Size
    4,618 SF
    Lot size
    0.34 Acres

    Taxes and HOA fees

    Tax Year
    2024
    Tax Annual Amount
    1956

    Utilities

    Sewer type
    Public Sewer
    Heating system
    Heat Pump (Heating), Forced Air
    Cooling system
    Heat Pump
    Water source
    Public

    Building Details

    Year built
    1890
    Flooring type
    Wood, Laminate
    Building materials
    Vinyl Siding, Brick, Masonry
    Roof type
    Membrane, Rolled Hot Mop, Flat

    We can help!

    Listing Contact
    Britani Holloway

    Listing agent Britani Holloway License #927390

    Listing office Berkshire Hathaway HomeServices Northeast Real Estate 160 Broadway, Bangor, ME

    Listing date Apr 2, 2026

    MLS# 1626521

    Copyright © 2026 Maine Listings. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

    Overview

    Restored Mixed-Use Building on Main

    Located in downtown Calais, this two-story brick building presents an investment opportunity. The property features a ground-floor commercial space suitable for retail, office, or service-based businesses. The second floor has been renovated into three residential apartments. One loft-style apartment features 30-foot ceilings, exposed brick walls, and expansive windows with waterfront views. The other two units are well-appointed and offer rental income potential. Upgrades include new heating systems, new electrical, new windows, and new appliances. A parcel of land is included, providing space for parking, outdoor seating, or future development. The property is situated on Main Street and offers visibility and foot traffic. The building combines modern comfort with historic character. The property size is 4618 square feet and the lot size is 0.34 acres.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Methodist Church Study High School Vibe Fitness Studio Gym & Fitness Center

    Suggested Use

    Real Estate Agency Restaurant Law Firm Building Supply Dental Office Spa & Massage Center 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
    Calais
    County
    Washington
    State
    Maine
    Longitude
    -67.2788225
    Latitude
    45.1889038

    Nearby Similar for Sale

    • $335,000
      4,618 SF

      Restored Mixed-Use Building on Main

      Turnkey, income-producing mixed-use property in downtown Calais.
      339 Main Street, Calais, ME 04619
      View Details
    • $189,000
      6,400 SF

      Versatile Industrial Building in Calais

      Adaptable industrial building with office space near downtown Calais.
      12 Tyler Street, Calais, ME 04619
      View Details
    • $219,000
      1,448 SF

      Downtown Commercial Building with Income

      Mixed-use property with commercial space and residential apartment.
      283 Main Street, Calais, ME 04619
      View Details
    • $385,000
      8,500 SF

      Retail Space For Sale

      Retail space available for purchase.
      203 Main Street, Calais, ME 04619
      View Details

    FAQs

    What type of property is this?
    Mixed-use property - Turnkey, income-producing mixed-use property in downtown Calais.
    Where is this mixed-use property located?
    The property is located at 339 Main Street Calais, ME.
    What is the asking price?
    The asking price for this property is $335,000.
    What are key features of this property?
    This property features: Turnkey, income‑producing mixed‑use building in a prime downtown location.; Completely renovated second floor with three distinct residential apartments, including a loft with 30‑foot ceilings and waterfront views.; Versatile ground‑floor commercial space suitable for retail, office, or service businesses with excellent visibility and foot traffic.
    (207) 214-1970
    We can help!
    Listing Contact
    Britani Holloway
    Real Estate License ID: 927390
    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.

    More about this property
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