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    Marathon, FL Residential Income Properties for Sale

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    Waterfront Duplex with Dockage
    Updated: Jun 10
    Waterfront Duplex with Dockage

    303 Sombrero Beach Road, Marathon, FL 33050

    $1,549,000
    2,114 sqft · 0.25 AC lot
    Stilted full duplex in Marathon with deep‑water boating access and approximately 110 ft of concrete seawall
    2,114 SF interior living space total; each side has about 1,057 SF with 2 bedrooms and 2 bathrooms
    Private in‑ground pool with decking and low‑maintenance gravel yard
    Dockage for multiple vessels with 110 ft of dockage along the waterfront
    Each unit includes washer and dryer plus kitchen appliances (range, microwave, dishwasher, refrigerator) and disposal
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    Waterfront Development Site with Dockage
    Updated: Mar 9
    Waterfront Development Site with Dockage

    14 125th Street Gulf, Marathon, FL 33050

    $3,549,000
    1.72 AC lot
    Ocean front property with approved deep‑water dockage and 100' of waterfrontage
    200' of highway frontage on a 74,890 SF site with active Conditional Use Permit
    CUP for 10 unit development plus 4 affordable staff group home units
    Mixed‑use zoning with redevelopment options including market‑rate units or higher‑density affordable housing
    2‑story raised CBS building totaling 6,128 SF plus 2,340 SF of outdoor porches
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    Two-Story Duplex in Marathon
    Two-Story Duplex in Marathon

    329 63 Court Gulf, Marathon, FL 33050

    $675,000
    1,302 sqft · 0.24 AC lot

    Two-story duplex on a large lot in Marathon, Florida.

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    Waterfront RV Lot with Dock Access
    Waterfront RV Lot with Dock Access

    6099 Overseas Highway 42E, Marathon, FL 33050

    $300,000
    1,125.00 AC lot

    Buildable RV lot in Key By the Sea with screened porch, storage, and water frontage with quick ocean access.

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    Waterfront Duplex with Dock/Sea Wall
    Waterfront Duplex with Dock/Sea Wall

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

    $1,725,000
    2,244 sqft

    Two 3-bedroom, 2-bath units on a lot with dock/sea wall access and outdoor amenities for year-round or rental use.

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    Waterfront Redevelopment Opportunity in Marathon, FL
    Waterfront Redevelopment Opportunity in Marathon, FL

    14 125Th Street Gulf, Marathon, FL 33050

    $3,549,000
    6,128 sqft · 1.72 AC lot

    Rare waterfront property with redevelopment potential and deep water dockage.

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    Waterfront Redevelopment Opportunity in Marathon
    Waterfront Redevelopment Opportunity in Marathon

    14 125Th Street Gulf, Marathon, FL 33050

    $3,549,000
    6,128 sqft · 1.57 AC lot

    Rare waterfront property with redevelopment potential and deep water dockage.

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    Waterfront Duplex in Sombrero Beach
    Waterfront Duplex in Sombrero Beach

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

    $1,300,000
    1,668 sqft · 0.08 AC lot

    Updated waterfront duplex with dock and ocean access in Marathon.

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    Waterfront Residences: Luxury & Income
    Waterfront Residences: Luxury & Income

    2394 Coco Plum Drive, Marathon, FL 33050

    $11,000,000
    12,198 sqft · 1.31 AC lot

    Three designer homes on a waterfront parcel with income potential.

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    Waterfront Duplex Near Sombrero Beach
    Waterfront Duplex Near Sombrero Beach

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

    $690,000
    834 sqft · 0.12 AC lot

    Updated waterfront duplex, move-in ready, near Sombrero Beach.

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    Waterfront Duplex with Building Rights
    Waterfront Duplex with Building Rights

    4901/4903 49th Street, Marathon, FL 33050

    $1,099,000
    1,512 sqft · 0.15 AC lot

    Rare duplex on canal with open water access in Marathon.

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    Waterfront Half-Duplex Near Sombrero Beach
    Waterfront Half-Duplex Near Sombrero Beach

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

    $690,000
    834 sqft · 0.08 AC lot

    Updated waterfront half-duplex with new dock near Sombrero Beach.

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    Waterfront Residences - Investment Opportunity
    Waterfront Residences - Investment Opportunity

    2394 Coco Plum Drive, Marathon, FL 33050

    $11,000,000
    4,066 sqft

    Three designer residences near Coco Plum Beach with income potential.

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    Gulf-Front Mixed-Use Estate Land
    Gulf-Front Mixed-Use Estate Land

    6500-6600 Overseas Highway, Marathon, FL 33050

    $9,500,000
    10,852 sqft · 3.86 AC lot

    Secured gulf-front property with dockage and substantial highway and water frontage for flexible mixed-use plans.

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    Waterfront Redevelopment Opportunity with Dockage
    Waterfront Redevelopment Opportunity with Dockage

    14 125th Street Gulf, Marathon, FL 33050

    $3,549,000
    6,128 sqft · 1.72 AC lot

    Rare waterfront redevelopment site with deep water dockage and highway frontage.

    View details
    Buildable RV Lot with Ocean Views
    Buildable RV Lot with Ocean Views

    6099 Overseas Highway, Marathon, FL 33050

    $225,000
    0.02 AC lot

    Buildable RV lot with ocean sunrise views, utilities in place, and resort amenities including a boat ramp and pavilions.

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    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.

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    Overseas Highway Mixed-Use Investment
    Overseas Highway Mixed-Use Investment

    7070 Overseas Highway, Marathon, FL 33050

    $1,450,000
    4,168 sqft

    Mixed-use property with commercial space and residential rental units.

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    Waterfront Townhouse in Marathon, FL
    Waterfront Townhouse in Marathon, FL

    10877 Overseas Highway, Marathon, FL 33050

    $525,000
    7.00 AC lot

    One-bedroom, two-bath townhouse on a 7-acre waterfront complex.

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    Oceanfront Home on Atlantic
    Oceanfront Home on Atlantic

    101 11th Street Ocean, Lot 33, Marathon, FL 33050

    $629,000
    1,000 sqft

    New construction, ocean views, community amenities, and rental potential.

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    Grassy Key Marina Investment
    Grassy Key Marina Investment

    59073 Overseas Hwy, Marathon, FL 33050

    $9,900,000
    22,000 sqft

    Marina with rental income, apartments, and potential for growth.

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    Oceanfront Home on Atlantic
    Oceanfront Home on Atlantic

    101 11th Street Ocean, Marathon, FL 33050

    Contact for pricing
    1,000 sqft

    Oceanfront property with sunrise/sunset views, modern amenities, and rental potential.

    View details
    Based on your search, we've compiled Potential Opportunities for your consideration. Besides 22 Active Listings in Marathon, FL, we suggest to view alternatives - similar 6 Off-Market properties to explore as potential leads.

    Off-Market Properties in Marathon, FL

    Consider similar Off-Market properties in Marathon, FL. You may contact the owners directly to inquire about their potential intentions to sell. To help you make a strong first impression, we can assist by reaching out to these owners with compelling proposals created using our AI tool.

    101 11Th Street Ocean
    Multifamily properties

    101 11Th Street Ocean, Marathon, FL 33050

    Value Estimation by Request
    1,000 sqft
    View details
    101 11Th Street Ocean
    Multifamily properties

    101 11Th Street Ocean, Marathon, FL 33050

    Value Estimation by Request
    1,000 sqft
    View details

    Marathon, FL Residential Income Properties Market Trends and Statistics

    Explore 28 residential income properties for sale in Marathon, FL, showcased through 22 active listings on our real estate platform. These investment opportunities span a total of 82,176 square feet of properties for sale, with an estimated market value of $61,225,000.

    Sale prices for residential income properties in Marathon, FL start at $675,000, averaging $4,081,666, and reaching up to $11,000,000 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

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    Top Commercial Asset Segments

    Commercial property segments ranked by active listings on the market

    Multifamily properties 23
    Short term rental properties 10
    Duplexes 7
    Apartment buildings 3
    Mobile home & RV parks 2

    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 $3.5M

    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

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