Add Listing
    For Sale
    • For Sale
    • For Lease
    • Sold
    • Property Lookup
    • Brokers
    The Largest CRE Database in the US with Over 1 Million Listings

    50 Mason Street Biddeford, ME 04005

    View on Map
    Claim this Listing
    For Sale
    $599,900

    MULTI_FAMILY - Colonial - Biddeford, ME

    Property size:
    2,766 SF
    Lot size:
    0.17 Acres
    Price / SF:
    $216/SF
    Added:
    Apr 25, 2026
    Days on Market:
    8
    Last Refresh:
    May 2 at 4:06 pm

    Property Features for 50 Mason Street

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Zoning
    R1B
    Bathrooms
    4
    Rooms
    Bathroom 1, Bathroom 2, Basement, Bathroom 4, Bathroom 3
    Patio and Porch features
    Deck
    Basement
    Walk-Out Access, Full
    Standard status
    Active
    Size
    2,766 SF
    Lot size
    0.17 Acres

    Taxes and HOA fees

    Tax Year
    2025
    Tax Annual Amount
    6167

    Utilities

    Sewer type
    Public Sewer
    Heating system
    Hot Water(Heating), Forced Air
    Water source
    Public

    Building Details

    Year built
    1899
    Number of units
    3
    Flooring type
    Laminate
    Building materials
    Vinyl Siding, Wood Frame
    Roof type
    Shingle
    Architectural style
    Colonial

    We can help!

    Listing Contact
    Kathy Apon

    Listing agent Kathy Apon

    Listing office Greater Portland Realty 41Merrill Road, Portland, ME

    Listing date Apr 25, 2026

    MLS# 1658490 Listing URL

    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

    Biddeford Multi-Unit Income Property

    This fully rented three-unit property offers immediate income with future owner-occupancy potential. The unit mix includes a spacious multi-level 3-bedroom, 1.5 bath unit, a 2-bedroom, 1-bath unit and a 1-bedroom, 1-bath unit. Recent updates include a new roof and new deck. Ample off-street parking is available with a six-car lot. Situated on a quiet dead-end street just minutes from downtown Biddeford, the property offers easy access to local shops, restaurants and everyday amenities. The property is located in York County, Maine and has a lot size of 0.17 acres. The building has 2766 square feet of living space and is zoned R1B. This is an opportunity to be part of Biddeford's growing downtown.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Triplexes

    Suggested Use

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

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

    Location Insight

    • Map
    • Local Demand
    City
    Biddeford
    County
    York
    State
    Maine
    Longitude
    -70.464568
    Latitude
    43.492093

    Nearby Similar for Sale

    • $439,500

      Commercial Building on US Route 1

      Commercial building on 0.65 acres with frontage on US Route 1.
      641 Elm St., Biddeford, ME 04005
      View Details
    • $465,000
      3,552 SF

      Spacious Downtown Biddeford Investment Opportunity

      Unique investment opportunity in downtown Biddeford with multi-family/commercial potential.
      200 Alfred Street, Biddeford, ME 04005
      View Details
    • $579,000
      2,957 SF

      Updated Three-Unit Building in Biddeford

      Well-maintained, updated 3-unit building with strong rental potential.
      84 Pike Street, Biddeford, ME 04005
      View Details
    • $449,000
      3,076 SF

      Biddeford Multi-Unit Building For Sale

      Three-unit building in Biddeford near downtown and the Mills.
      38 Jefferson Street, Biddeford, ME 04005
      View Details
    • $899,900
      3,853 SF

      Turnkey Investment Property in Biddeford

      Five-unit, fully leased investment property near downtown Biddeford.
      11 King Street, Biddeford, ME 04005
      View Details
    • $2,395,000
      11,374 SF

      Mixed-Use Property with Heated Warehouse

      Eight residential units plus heated warehouse in desirable Biddeford, Maine.
      276 Hill Street, Biddeford, ME 04005
      View Details
    • $909,900
      4,129 SF

      Turnkey Investment Property in Biddeford

      Five-unit property in downtown Biddeford, fully leased with upside.
      4 Kossuth Street, Biddeford, ME 04005
      View Details
    • $2,750,000
      8,808 SF

      Biddeford Multifamily Investment Opportunity

      Ten units with development potential in Biddeford, Maine.
      79 W Cutts Street, Biddeford, ME 04005
      View Details
    • $435,900
      1,590 SF

      Biddeford Income Property Opportunity

      Two-unit income property with investment and residential possibilities.
      312 Alfred Street, Biddeford, ME 04005
      View Details
    • $625,000
      1,650 SF

      COMMERCIAL - Biddeford, ME

      408 Elm Street, Biddeford, ME 04005
      View Details
    • $1,250,000
      13,942 SF

      Biddeford Office/Flex Building For Sale

      13,942 SF office/flex building on 1.09 acres in Biddeford.
      8 Pomerleau St, Biddeford, ME
      View Details
    • $1,250,000
      9,000 SF

      Turnkey Restaurant Space in Biddeford

      Turnkey restaurant in Biddeford's vibrant downtown, ideal for investors.
      50 Main St , Biddeford, ME
      View Details

    FAQs

    What type of property is this?
    Triplex - Fully rented three-unit property near downtown Biddeford.
    Where is this triplex located?
    The property is located at 50 Mason Street Biddeford, ME.
    What is the asking price?
    The asking price for this property is $599,900.
    (207) 671-5496
    We can help!
    Listing Contact
    Kathy Apon
    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

    50 Mason Street, Biddeford, ME 04005

    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!