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    103 South Street Bath, ME 04530

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    For Sale
    $1,750,000

    MULTI_FAMILY - Federal - Bath, ME

    Property size:
    17,285 SF
    Lot size:
    1.80 Acres
    Price / SF:
    $101/SF
    Added:
    May 1, 2026
    Days on Market:
    2
    Last Refresh:
    May 2 at 3:06 pm

    Property Features for 103 South Street

    General Information

    Property type
    Residential Multi Family
    Property subtype
    Other
    Zoning
    R1
    Bathrooms
    8
    Rooms
    Bathroom 8, Bathroom 4, Bathroom 6, Bathroom 1, Bathroom 3, Basement, Bathroom 7, Bathroom 2, Bathroom 5
    Interior features
    Elevator Passenger
    Basement
    Full, Unfinished, Walk-Out Access
    Accessibility
    Accessible Elevator Installed
    Standard status
    Active
    Size
    17,285 SF
    Lot size
    1.80 Acres

    Taxes and HOA fees

    Tax Year
    2025
    Tax Annual Amount
    18269

    Utilities

    Sewer type
    Public Sewer
    Heating system
    Pellet Stove, Hot Water(Heating), Zoned
    Water source
    Public

    Building Details

    Year built
    1800
    Floors in Building
    3
    Number of units
    4
    Flooring type
    Laminate, Wood, Carpet
    Building materials
    Vinyl Siding, Other Exterior, Wood Frame
    Roof type
    Rolled Hot Mop
    Architectural style
    Federal

    We can help!

    Listing Contact
    Carrie Martin

    Listing agent Carrie Martin

    Listing office Legacy Properties Sotheby's International Realty 2 City Center, Portland, ME

    Listing date May 1, 2026

    MLS# 1620538 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

    Historic Bath Property with Redevelopment Potential

    This historic property, offered for the first time in over 25 years, is located in Bath, Maine, and presents an opportunity to reposition a landmark residence on a prominent 1.8-acre corner lot. The property, with a total area of approximately 17,285 square feet, includes an approximately 12,000 square foot main house and a connected wing currently configured as income-producing units. Originally constructed in the early 1800s by Captain Samuel Davis and later redesigned by architect Francis Fassett, the building previously served as the Bath Military and Naval Children's Home and the Bath City Library before becoming a private residence. The property is deeded for bed and breakfast use and, subject to city approval, may support expanded residential redevelopment. Features include an in-ground swimming pool, elevator, ample off-street parking, and space for reimagined gardens. The property offers a strong foundation for restoration or repurposing. The zoning is R1. The property may support expanded residential redevelopment, subject to city approval.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Bed & breakfasts

    Suggested Use

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

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

    Location Insight

    • Map
    • Local Demand
    City
    Bath
    County
    Sagadahoc
    State
    Maine
    Longitude
    -69.8199881
    Latitude
    43.9079014

    Nearby Similar for Sale

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      View Details
    • $1,899,000
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      Downtown Waterfront Retail/Office Space

      Retail or office space with excellent visibility on the waterfront.
      99 Commercial Street, Bath, ME
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    FAQs

    What type of property is this?
    Apartment building - Landmark 1.8-acre property with income and redevelopment potential.
    Where is this apartment building located?
    The property is located at 103 South Street Bath, ME.
    What is the asking price?
    The asking price for this property is $1,750,000.
    What are key features of this property?
    This property features: 1.8‑acre corner lot offers income and redevelopment potential.; Approximately 17,285 sq ft historic property with a 12,000 sq ft main house and income‑producing wing.; Deeded for bed and breakfast use; potential for expanded residential redevelopment (subject to city approval).
    (207) 415-2504
    We can help!
    Listing Contact
    Carrie Martin
    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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    103 South Street, Bath, ME 04530

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