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    Marathon, FL Office Spaces for Sale

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    Key Colony Beach, FL Duck Key, FL Conch Key, FL Islamorada, FL No Name Key, FL Big Pine Key, FL
    8 properties
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    Mixed-Use Building with Drive-Through
    Updated: Mar 25
    Mixed-Use Building with Drive-Through

    11401 Overseas Highway, Marathon, FL 33050

    $1,533,333
    3,429 sqft 0.34 AC lot
    3,429 square feet of air‑conditioned commercial space
    CBS construction with 1983 build year
    Double drive‑through and open upstairs patio
    15,000‑square‑foot corner lot with direct highway exposure
    MU - Mixed Use Commercial zoning
    View details
    Shared Office Coworking Space
    Updated: Feb 10
    Shared Office Coworking Space

    9141 Overseas Highway, Marathon, FL 33050

    Contact for pricing
    84 sqft 0.47 AC lot
    Shared office setting at Marathon Berkshire Business Center
    MU - Mixed Use Commercial zoning
    0.47‑acre property
    Central air conditioning
    Off‑street parking
    View details
    Contiguous Medical Office Suites
    Contiguous Medical Office Suites

    5701 Overseas Hwy 10, Marathon, FL 33050

    $725,000
    2,556 sqft

    Three contiguous office units offer flexible medical or professional office configurations within a prominent highway retail corridor.

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    Realmo Analytics Monitor Off-market properties and contact owners who are ready to sell. Many signals applied to make quality leads for you. Get Leads
    Frontage Professional Office Unit
    Frontage Professional Office Unit

    1-5701 Overseas Hwy, Marathon, FL 33050

    $395,000
    1,128 sqft

    Reception, three private offices, kitchen area, and half bath support a flexible professional layout.

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    Two-Story Mixed-Use Building
    Two-Story Mixed-Use Building

    2901 Overseas Highway, Marathon, FL 33050

    Contact for pricing
    4,560 sqft 0.35 AC lot

    Flexible commercial suites occupy the lower level, with two residential apartments above and a rear parcel with canal access.

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    Updated Medical Office Suite
    Updated Medical Office Suite

    5-5701 Overseas Hwy, Marathon, FL 33050

    $265,000

    Updated office suite with a front desk, waiting room, three separate rooms, and one full bathroom.

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    Corner Mixed-Use Land with Office
    Corner Mixed-Use Land with Office

    4000 Overseas Highway, Marathon, FL 33050

    Contact for pricing
    850 sqft 0.87 AC lot

    Elevated corner property with 200 feet of Overseas Highway frontage, enclosed with CBS retaining walls, plus an 850 sq. ft. office.

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    Established Business in Florida Keys
    Established Business in Florida Keys

    Montage FL Keys Souvenirs, Marathon, FL 33050

    $99,000

    Work and live in paradise with this established business.

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    Based on your search, we've compiled 64 Potential Opportunities for your consideration. Besides 8 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

    Opportunities in Nearby Cities

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

    Islamorada Mixed-Use Investment Opportunity
    Islamorada Mixed-Use Investment Opportunity

    88101 Old Highway, Plantation Key, FL 33036

    $999,999
    2,244 sqft

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

    View details
    Two-Story Office Building
    Two-Story Office Building

    88101 Old Highway, Plantation Key, FL 33036

    $999,999
    2,244 sqft 0.14 AC lot

    Mixed-use highway commercial zoning accommodates owner occupancy alongside office leasing potential.

    View details
    Renovated Mixed-Use Commercial Property
    Renovated Mixed-Use Commercial Property

    105 Palm Ave., Islamorada, FL 33036

    $4,600,000

    Three-building mixed-use commercial property totally renovated in 2019, with adaptable interior space and on-site parking.

    View details
    Renovated Mixed-Use Commercial Property
    Renovated Mixed-Use Commercial Property

    105 Palm Avenue, Upper Matecumbe Key, Islamorada, FL 33036

    $4,600,000
    0.21 AC lot

    Three-building commercial property with adaptable interiors, customer parking, and Highway Commercial zoning.

    View details

    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
    OFFICE BUILDING

    9141 Overseas Hwy, Marathon, FL 33050-3247

    Estimated value:
    $2,155,000
    4,820 sqft 0.46 AC lot
    View details
    5701 Overseas Hwy Ste, Unit 2
    PROFESSIONAL BUILDING

    5701 Overseas Hwy Ste, Marathon, FL 33050-2784

    Unit 2
    Estimated value:
    $295,000
    947 sqft 1.70 AC lot
    View details
    9701 Overseas Hwy1b
    PROFESSIONAL BUILDING

    9701 Overseas Hwy1b, Marathon, FL 33050-3342

    Estimated value:
    $270,000
    613 sqft 1.08 AC lot
    View details
    13361 Overseas Hwy
    OFFICE BUILDING

    13361 Overseas Hwy, Marathon, FL 33050-3550

    Estimated value:
    $880,000
    3,886 sqft 0.53 AC lot
    View details
    9705 Overseas Hwy
    PROFESSIONAL BUILDING

    9705 Overseas Hwy, Marathon, FL 33050-3342

    Estimated value:
    $285,000
    952 sqft 1.08 AC lot
    View details
    13371 Overseas Hwy
    OFFICE BUILDING

    13371 Overseas Hwy, Marathon, FL 33050-3550

    Estimated value:
    $1,250,000
    6,376 sqft 0.33 AC lot
    View details
    5701 Overseas Hwy Ste, Unit 3
    PROFESSIONAL BUILDING

    5701 Overseas Hwy Ste, Marathon, FL 33050-2784

    Unit 3
    Estimated value:
    $280,000
    947 sqft 1.70 AC lot
    View details
    6400 Overseas Hwy
    PROFESSIONAL BUILDING

    6400 Overseas Hwy, Marathon, FL 33050-2786

    Estimated value:
    $1,100,000
    4,383 sqft 0.33 AC lot
    View details
    6803 Overseas Hwy
    OFFICE BUILDING

    6803 Overseas Hwy, Marathon, FL 33050-3125

    Estimated value:
    $1,065,000
    6,280 sqft 0.31 AC lot
    View details
    5701 Overseas Hwy Ste, Unit 4
    PROFESSIONAL BUILDING

    5701 Overseas Hwy Ste, Marathon, FL 33050-2784

    Unit 4
    Estimated value:
    $205,000
    947 sqft 1.70 AC lot
    View details
    6677 Overseas Hwy
    OFFICE BUILDING (MULTI-STORY)

    6677 Overseas Hwy, Marathon, FL 33050-2734

    Estimated value:
    $325,000
    4,050 sqft 0.29 AC lot
    View details
    13688 Overseas Hwy
    OFFICE BUILDING

    13688 Overseas Hwy, Marathon, FL 33050-3552

    Estimated value:
    $305,000
    860 sqft 0.11 AC lot
    View details
    1477 Overseas Hwy
    OFFICE BUILDING

    1477 Overseas Hwy, Marathon, FL 33050-2116

    Estimated value:
    $265,000
    1,680 sqft 0.34 AC lot
    View details
    11187 Overseas Hwy
    OFFICE BUILDING

    11187 Overseas Hwy, Marathon, FL 33050-3460

    Estimated value:
    $510,000
    2,098 sqft 0.17 AC lot
    View details
    3770 Overseas Hwy
    OFFICE BUILDING

    3770 Overseas Hwy, Marathon, FL 33050-2339

    Estimated value:
    $3,185,000
    11,234 sqft 1.22 AC lot
    View details
    7885 Overseas Hwy
    OFFICE BUILDING

    7885 Overseas Hwy, Marathon, FL 33050-3122

    Estimated value:
    $720,000
    2,148 sqft 0.32 AC lot
    View details

    Marathon, FL Office Spaces Market Trends and Statistics

    Explore 60 office spaces for sale in Marathon, FL, showcased through 8 active listings on our real estate platform. These investment opportunities span a total of 12,607 square feet of properties for sale, with an estimated market value of $3,017,333.

    Sale prices for office properties in Marathon, FL start at $99,000, averaging $603,466, and reaching up to $1,533,333 — 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

    Office Units 13
    Medical Office Space 5
    Coworking space 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 $502.9K

    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)

    How Realmo verifies these figures

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