Advertise
    Marathon, FL
    Duplex

    Marathon, FL Duplexes for Sale

    Notify Me
    List
    Map
    Key Colony Beach, FL Duck Key, FL Conch Key, FL Islamorada, FL No Name Key, FL Big Pine Key, FL
    11 properties
    Sort:
    Two-Bedroom Duplex Unit
    Updated: May 7
    Two-Bedroom Duplex Unit

    250 66Th Street, Marathon, FL 33050

    $295,000
    783 sqft 0.05 AC lot
    783‑square‑foot half‑duplex with two bedrooms and one bathroom
    0.05‑acre fenced lot with front‑yard parking
    RM - Residential Medium zoning
    Central air conditioning, tile flooring, and refrigerator
    CBS construction with a metal roof
    View details

    This listing looks promising.

    Here's a quick look at some key insights for

    250 66Th Street, Marathon, FL 33050

    View Property Analytics

    • Est. Cap Rate

      4.5%
      NOI ÷ price

    • Est. NOI

      $13K
      Annual

    • Price @ 7% Cap

      $187K
      Suggested

    • Property Type

      Single Family Residence
      Built 1971
    View Property Analytics
    Waterfront Short-Term Rental Property
    Updated: Aug 12
    Waterfront Short-Term Rental Property

    219 Sombrero Beach Road, Marathon, FL 33050

    $1,439,000
    1,840 sqft 0.16 AC lot
    1,840‑square‑foot waterfront property with four bedrooms and three bathrooms
    31 feet of private dockage near Sombrero Beach
    Private pool with patio, deck, porch, and cabana‑style outdoor area
    RM - Residential Medium zoning
    Built in 2017 with central heating and central air
    View details
    Waterfront Duplex with Private Pool
    Waterfront Duplex with Private Pool

    241 Sombrero Beach Road, Marathon, FL 33050

    $1,400,000
    1,840 sqft 0.17 AC lot

    RM-zoned waterfront property with a private dock, direct ocean access, and a fenced tropical outdoor area.

    View details
    Two-Story Duplex
    Two-Story Duplex

    329 63 Court Gulf, Marathon, FL 33050

    $500,000
    1,302 sqft 0.24 AC lot

    Two one-bedroom units feature separate bathrooms, kitchen appliances, patios, and window or wall-mounted cooling.

    View details
    Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center
    Waterfront Duplex with Dock
    Waterfront Duplex with Dock

    440-442 48th Street Ocean, Marathon, FL 33050

    $1,725,000

    Duplex with dock, pool, and short-term rental potential.

    View details
    Waterfront Duplex with Dock
    Waterfront Duplex with Dock

    440-442 48th Street Ocean, Marathon, FL 33050

    $1,725,000
    2,244 sqft

    Two three-bedroom units feature separate utilities, fenced outdoor space, and canal access for flexible occupancy options.

    View details
    Waterfront Duplex with Dockage
    Waterfront Duplex with Dockage

    303 Sombrero Beach Road, Marathon, FL 33050

    $1,549,000
    2,114 sqft 0.25 AC lot

    Stilted waterfront duplex with a pool, 110 feet of concrete seawall, and dockage for deep-water boating access.

    View details
    Updated Waterfront Half-Duplex
    Updated Waterfront Half-Duplex

    17 Manowar Drive, Marathon, FL 33050

    $675,000
    834 sqft 0.08 AC lot

    Two-bedroom, two-bath residence with a new seawall, private dock, and partial open-water views.

    View details
    Waterfront Duplex with Private Pools
    Waterfront Duplex with Private Pools

    901 46th Street, Marathon, FL 33050

    $2,650,000
    3,047 sqft 0.43 AC lot

    Gulf frontage, boating access, and a separate apartment support flexible occupancy.

    View details
    Waterfront Duplex with Dock
    Waterfront Duplex with Dock

    17-18 Man-O-War Drive, Marathon, FL 33050

    $1,295,000
    1,668 sqft 0.08 AC lot

    Updated two-unit property with direct ocean access and partial open-water views.

    View details
    Updated Waterfront Half-Duplex
    Updated Waterfront Half-Duplex

    18 Man-O-War Drive, Marathon, FL 33050

    $675,000
    834 sqft 0.12 AC lot

    Canal-front residence with a 45-foot dock, seawall, and partial open-water views near Sombrero Beach.

    View details
    Based on your search, we've compiled 15 Potential Opportunities for your consideration. Besides 11 Active listings in Marathon, FL, we suggest exploring several alternatives: 4 properties in Nearby Cities

    Opportunities in Nearby Cities

    Here are 4 Similar properties we found in Nearby Locations for your consideration.

    Canal-Front Duplex with Two Entrances
    Canal-Front Duplex with Two Entrances

    31032 Hollerich Drive, Big Pine Key, FL 33043

    $899,000
    1,460 sqft 0.12 AC lot

    Waterfront duplex with two 2BR/1BA units, private entrances, updated kitchens, renovated baths, and canal-front outdoor space.

    View details
    CBS Duplex with Direct Channel Access
    CBS Duplex with Direct Channel Access

    1433 Sunset Road, Big Pine Key, FL 33043

    $699,000
    1,924 sqft 0.18 AC lot

    Fully furnished two-unit duplex on a large lot with full seawall and direct boating access to Bogie Channel.

    View details
    Canal-Front Duplex With Pool
    Canal-Front Duplex With Pool

    Key Colony Beach, FL 33051

    $2,845,000
    4,478 sqft 0.19 AC lot

    Canal-front duplex with two units, impact windows and doors, and a heated pool with spa and dockage.

    View details
    Waterfront Duplex with Dockage
    Waterfront Duplex with Dockage

    Key Colony Beach, FL 33051

    $1,185,000
    2,166 sqft 0.09 AC lot

    CBS construction includes a lower-level suite and open-concept upper living area.

    View details

    Marathon, FL Duplexes Market Trends and Statistics

    Explore 11 duplexes for sale in Marathon, FL, showcased through 11 active listings on our real estate platform. These investment opportunities span a total of 16,506 square feet of properties for sale, with an estimated market value of $13,928,000.

    Sale prices for duplexes in Marathon, FL start at $295,000, averaging $1,266,181, and reaching up to $2,650,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

    List
    Map

    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Short term rental properties 12
    Duplexes 11
    Triplexes 2
    Mobile home & RV parks 1

    Demographics Overview

    Population 11K
    Population Growth (5Y) +12.2%
    Median Household Income $83,776
    College Educated 36.9%

    High-Yield Neighborhoods for Investment

    Identify Marathon submarkets with the highest inventory density on the market and evaluate the average listing prices of real estate assets

    Neighborhood Average Price
    33050 $1.7M

    Taxes & Financing

    Tax Rate (average for all types) 0.86%
    Property Tax per SF $8.45 per SF
    Tax Rate vs County Average 0.11 pp above county avg
    Average Loan-to-Value 65.0%

    Listings Trend

    New vs delisted commercial listings in Monroe County

    New Delisted

    Total CRE Inventory on Market (SF)

    Average Property Price per SF

    For-sale pricing trends across core commercial property types in Monroe County

    Retail

    Need Help?

    Reach out if you need assistance with Realmo tools or have questions about your listings

    Contact Us

    Browse Duplexes for Sale Near Marathon, FL

    Popular Searches in Marathon, FL

    Popular Categories

    Most Searched ZIP Codes in Marathon, FL

    • 33050

    Select Neighborhood

    Google sign-in failed. Please try again or use another login method.
    Sign Up Successful!
    You now have access to more from Realmo!