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    36 Brunswick Avenue Gardiner, ME 04345

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    Claim this Listing
    For Sale
    $244,800

    COMMERCIAL - Gardiner, ME

    Type:Office
    Property size:
    4,513 SF
    Lot size:
    0.26 Acres
    Added:
    Jan 2, 2026
    Days on Market:
    103
    Last Refresh:
    Apr 15 at 2:06 am

    Property Features for 36 Brunswick Avenue

    General Information

    Property type
    Commercial Sale
    Property subtype
    Office
    Zoning
    Prof./Residential
    Standard status
    Active
    Size
    4,513 SF
    Lot size
    0.26 Acres

    Taxes and HOA fees

    Tax Year
    2024
    Tax Annual Amount
    6267

    Utilities

    Sewer type
    Public Sewer
    Heating system
    Hot Water(Heating)
    Water source
    Public

    Building Details

    Year built
    1945
    Flooring type
    Carpet, Wood
    Building materials
    Aluminum Siding
    Roof type
    Shingle

    We can help!

    Listing Contact
    Katie McAllister

    Listing agent Katie McAllister

    Listing office McAllister Real Estate 143 Water Street, Hallowell, ME

    Listing date Jan 2, 2026

    MLS# 1641256

    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

    Gardiner Commercial Building For Sale

    This commercial property, formerly an office building and retirement home, offers over 4,500 square feet of space. It is situated one block from historic downtown Gardiner and the post office, providing a walkable location with convenient access to local amenities. These include grocery stores, City Hall, restaurants, and shopping. Currently, the property is being utilized as a two-unit residential rental. The property is being sold strictly as-is, where-is, with no guarantees or representations of any kind. Located in Gardiner, Maine, the property occupies a 0.26-acre lot and is zoned for professional/residential use.
    Property Profile Insight Report Location Intelligence

    Current Use by Public Records

    Office buildings

    Suggested Use

    Real Estate Agency Law Firm Restaurant Spa & Massage Center Hair Salon Nail Salon Building Supply Gym & Fitness Center Auto Repair Shop Accounting Firm

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

    Location Insight

    • Map
    • Local Demand
    City
    Gardiner
    County
    Kennebec
    State
    Maine
    Longitude
    -69.7744966
    Latitude
    44.2287975

    Nearby Similar for Sale

    • $244,800
      4,513 SF

      Gardiner Multifamily Property For Sale

      Former office/retirement home near downtown Gardiner, being sold as-is.
      36 Brunswick Avenue, Gardiner, ME 04345
      View Details
    • $750,000
      14,883 SF

      Gardiner Auto Shop For Sale

      Auto-related property in Gardiner with 13 service bays.
      511 Water St, Gardiner, ME 04345
      View Details
    • $399,900
      11,340 SF

      Downtown Gardiner Mixed-Use Building

      Mixed-use building in downtown Gardiner with income potential.
      218 Water St, Gardiner, ME
      View Details
    • $5,100,000
      48,771 SF

      Fully Leased Gardiner Office Building

      48,771 SF office building fully leased through 2033.
      76 Northern Ave, Gardiner, ME
      View Details
    • $5,100,000
      48,771 SF

      Fully Leased State Office Building

      Fully leased office building occupied by the State of Maine.
      76 Northern Ave, Gardiner, ME 04345
      View Details

    FAQs

    What type of property is this?
    Senior housing / Retirement Home - Former office and retirement home near downtown Gardiner.
    Where is this senior housing / retirement home located?
    The property is located at 36 Brunswick Avenue Gardiner, ME.
    What is the asking price?
    The asking price for this property is $244,800.
    What are key features of this property?
    This property features: Over 4,500 sq. ft.; Convenient, walkable location: One block from historic downtown Gardiner, close to amenities.; Currently used as a 2‑unit residential rental.
    (207) 621-2345
    We can help!
    Listing Contact
    Katie McAllister
    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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