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    Marathon, FL Office Properties & Spaces for Sale

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    Lehigh Acres, FL Cape Coral, FL Port Charlotte, FL
    Highway Exposure Commercial Building
    $1,533,333

    Highway Exposure Commercial Building

    11401 Overseas Highway, Marathon, FL 33050

    Corner lot building with drive-thru and patio.

    • Prime corner location with direct highway exposure.
    • Oversized CBS building with 3,429 sq ft of air conditioned space.
    • Commercial zoning allows for many office or retail uses.
    • Very visible 15,000 sq ft corner lot.
    • Ample parking for customers and employees.
    Updated: Mar 25
    View details
    Improved Medical Suite For Sale
    $1,100,000
    4,139 SF

    Improved Medical Suite For Sale

    5701 Overseas Hwy, Marathon, FL

    Well-maintained 4,139 SF medical suite in Marathon, Florida.

    • Fully Improved Medical Suite: Ready for immediate use.
    • Sizeable Suite: ± 4,139 SF provides ample space.
    • Ample Parking: 60 spaces available.
    • Mixed‑Use Commercial Zoning: Offers flexibility.
    • Low Property Taxes: $1,050 per year.
    Updated: Oct 22, 2025
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    Corner Commercial Building with Drive-Through
    $1,999,999
    4,429 SF

    Corner Commercial Building with Drive-Through

    Oversized CBS building with drive-through, suitable for office or retail.

    11401 Overseas Hwy, Marathon, FL 33050
    View details
    Established Business in Florida Keys
    $99,000

    Established Business in Florida Keys

    Work and live in paradise with this established business.

    Montage FL Keys Souvenirs, Marathon, FL 33050
    View details
    Based on your search, we've compiled 64 Potential Opportunities for your consideration. Besides 4 Active listings in Marathon, FL, we suggest exploring several alternatives: 4 properties in Nearby Cities, and similar 52 Off-Market properties to explore as potential leads, plus 4 Land Listings that present a potential for development.

    Explore Opportunities in Nearby Cities

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

    Two-Story Office Building in Islamorada
    $1,195,000

    Two-Story Office Building in Islamorada

    Two-story Key West-inspired building with income potential in Islamorada.

    88101 Old Highway, Plantation Key, FL 33036
    View details
    Cudjoe Key Commercial Building Space
    Contact for pricing

    Cudjoe Key Commercial Building Space

    Three-story commercial building with office and retail space for sale.

    Summerland Key, FL 33042
    View details
    Islamorada Mixed-Use Investment Opportunity
    $1,195,000
    2,244 SF

    Islamorada Mixed-Use Investment Opportunity

    Two-story mixed-use building with income potential in Islamorada.

    88101 Old Hwy, Plantation Key, FL 33036
    View details
    Waterfront Commercial Property in Summerland
    $849,000
    574 SF

    Waterfront Commercial Property in Summerland

    Waterfront commercial property on US Highway 1 in Summerland Key.

    24458 Overseas Hwy, Summerland Key, FL 33042
    View details

    Potential Development Sites for Consideration

    Can't find the perfect fit? These Land listings present an alternative path: the potential to develop a property for your specific goals.

    Important: These AI-suggestions are a starting point, not a guarantee of permitted use. All zoning, permitting, and land use information must be independently verified by you with the appropriate local authorities before making any commitments.

    Oceanfront Development Opportunity in Marathon
    $10,500,000

    Oceanfront Development Opportunity in Marathon

    Rare oceanfront land for luxury residential development in Florida Keys.

    57478 Overseas Highway, Marathon, FL 33050
    View details
    Commercial Canal Front Vacant Lot
    $575,000

    Commercial Canal Front Vacant Lot

    Commercial canal front vacant lot with dock and highway frontage.

    24590 Overseas Highway, Summerland Key, FL 33042
    View details
    Waterfront Land Development Opportunity
    $2,499,000

    Waterfront Land Development Opportunity

    Rare waterfront land in Islamorada, Florida, with development potential.

    90291 Old Highway, Plantation Key, FL 33070
    View details
    Key West Multifamily Development Opportunity
    $9,888,000
    2,071 SF

    Key West Multifamily Development Opportunity

    Undeveloped ocean-view property in Key West's Historic Commercial Tourist District.

    1430 Vernon Avenue, Key West, FL 33040
    View details

    Explore 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.

    9141 Overseas Hwy

    9141 Overseas Hwy

    OFFICE BUILDING • 4,820 SF
    Value Estimation
    $2,155,000
    9141 Overseas Hwy, Marathon, FL 33050-3247
    View details
    5701 Overseas Hwy Ste, Unit 2

    5701 Overseas Hwy Ste, Unit 2

    PROFESSIONAL BUILDING • 947 SF
    Value Estimation by Request
    5701 Overseas Hwy Ste, Marathon, FL 33050-2784
    View details
    9701 Overseas Hwy1b

    9701 Overseas Hwy1b

    PROFESSIONAL BUILDING • 613 SF
    Value Estimation by Request
    9701 Overseas Hwy1b, Marathon, FL 33050-3342
    View details
    13361 Overseas Hwy

    13361 Overseas Hwy

    OFFICE BUILDING • 3,886 SF
    Value Estimation
    $905,000
    13361 Overseas Hwy, Marathon, FL 33050-3550
    View details
    9705 Overseas Hwy

    9705 Overseas Hwy

    PROFESSIONAL BUILDING • 952 SF
    Value Estimation by Request
    9705 Overseas Hwy, Marathon, FL 33050-3342
    View details
    13371 Overseas Hwy

    13371 Overseas Hwy

    OFFICE BUILDING • 6,376 SF
    Value Estimation
    $1,250,000
    13371 Overseas Hwy, Marathon, FL 33050-3550
    View details
    5701 Overseas Hwy Ste, Unit 3

    5701 Overseas Hwy Ste, Unit 3

    PROFESSIONAL BUILDING • 947 SF
    Value Estimation by Request
    5701 Overseas Hwy Ste, Marathon, FL 33050-2784
    View details
    6400 Overseas Hwy

    6400 Overseas Hwy

    PROFESSIONAL BUILDING • 4,383 SF
    Value Estimation
    $1,120,000
    6400 Overseas Hwy, Marathon, FL 33050-2786
    View details
    6803 Overseas Hwy

    6803 Overseas Hwy

    OFFICE BUILDING • 6,280 SF
    Value Estimation
    $1,095,000
    6803 Overseas Hwy, Marathon, FL 33050-3125
    View details
    5701 Overseas Hwy Ste, Unit 4

    5701 Overseas Hwy Ste, Unit 4

    PROFESSIONAL BUILDING • 947 SF
    Value Estimation by Request
    5701 Overseas Hwy Ste, Marathon, FL 33050-2784
    View details
    6677 Overseas Hwy

    6677 Overseas Hwy

    OFFICE BUILDING (MULTI-STORY) • 4,050 SF
    Value Estimation
    $940,000
    6677 Overseas Hwy, Marathon, FL 33050-2734
    View details
    13688 Overseas Hwy

    13688 Overseas Hwy

    OFFICE BUILDING • 860 SF
    Value Estimation by Request
    13688 Overseas Hwy, Marathon, FL 33050-3552
    View details
    1477 Overseas Hwy

    1477 Overseas Hwy

    OFFICE BUILDING • 1,680 SF
    Value Estimation
    $610,000
    1477 Overseas Hwy, Marathon, FL 33050-2116
    View details
    11187 Overseas Hwy

    11187 Overseas Hwy

    OFFICE BUILDING • 2,098 SF
    Value Estimation
    $520,000
    11187 Overseas Hwy, Marathon, FL 33050-3460
    View details
    3770 Overseas Hwy

    3770 Overseas Hwy

    OFFICE BUILDING • 11,234 SF
    Value Estimation
    $3,185,000
    3770 Overseas Hwy, Marathon, FL 33050-2339
    View details
    7885 Overseas Hwy

    7885 Overseas Hwy

    OFFICE BUILDING • 2,148 SF
    Value Estimation
    $660,000
    7885 Overseas Hwy, Marathon, FL 33050-3122
    View details
    10095 Overseas Hwy

    10095 Overseas Hwy

    OFFICE BUILDING • 10,288 SF
    Value Estimation
    $2,850,000
    10095 Overseas Hwy, Marathon, FL 33050-3336
    View details
    5701 Overseas Hwy Ste, Unit 9

    5701 Overseas Hwy Ste, Unit 9

    PROFESSIONAL BUILDING • 852 SF
    Value Estimation by Request
    5701 Overseas Hwy Ste, Marathon, FL 33050-2784
    View details
    5701 Overseas Hwy Ste, Unit 8

    5701 Overseas Hwy Ste, Unit 8

    PROFESSIONAL BUILDING • 852 SF
    Value Estimation by Request
    5701 Overseas Hwy Ste, Marathon, FL 33050-2784
    View details
    9711 Overseas Hwy

    9711 Overseas Hwy

    PROFESSIONAL BUILDING • 1,487 SF
    Value Estimation by Request
    9711 Overseas Hwy, Marathon, FL 33050-3342
    View details

    Marathon, FL Office Properties & Spaces Investment Opportunities Market Analysis

    Explore 56 office properties & spaces for sale in Marathon, FL, showcased through 4 active listings on our real estate platform. These investment opportunities span a total of 2,198,369 square feet of properties for sale, with an estimated market value of $20,823,333.

    Sale prices for office spaces in Marathon, FL start at $205,000, averaging $495,793, and reaching up to $3,455,000 — 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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