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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
    9 properties
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    Contiguous Medical Office Suites
    Updated: Jul 7
    Contiguous Medical Office Suites

    5701 Overseas Hwy 10, Marathon, FL 33050

    $725,000
    2,556 sqft
    3 contiguous professional office units (8, 9 & 10) totaling 2,556 SF in The First Professional Centre
    Units 8 and 9 are currently configured as a combined medical office suite (852 SF each)
    Unit 10 is a separate medical office (852 SF) with interior access to Units 8 & 9 for flexible use
    Prominent business signage and a shared, spacious parking lot along Overseas Highway for roadside visibility
    Highly visible 17‑unit CBS elevated complex on Overseas Highway in Marathon
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    This listing looks promising.

    Here's a quick look at some key insights for

    5701 Overseas Hwy 10, Marathon, FL 33050

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    • Est. Cap Rate

      6.7%
      Above avg (5.9%)

    • Est. NOI

      $48K
      Annual

    • Price @ 7% Cap

      $688K
      Suggested
    View Property Analytics
    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
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    Waterfront Mixed-Use Property
    Waterfront Mixed-Use Property

    14 125Th Street Gulf, Marathon, FL 33050

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

    MU - Mixed Use Commercial zoning accompanies a raised concrete building and waterfront redevelopment site.

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    Shared Office Space
    Shared Office Space

    9141 Overseas Highway, Marathon, FL 33050

    Contact for pricing
    84 sqft 0.47 AC lot

    Shared workspace includes common break-room and restroom facilities with central air.

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    Turn a Listing Into an Investment Snapshot Cap Rate, Potential NOI, Demand score for every listing. Go To Analytics Center
    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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    Mixed-Use Retail and Apartments
    Mixed-Use Retail and Apartments

    6799 Overseas Hwy, Marathon, FL 33050

    Contact for pricing
    4,858 sqft 0.24 AC lot

    Two-story concrete building with three retail/office units on the ground floor and three residential apartments above.

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    Updated Medical Office Suite
    Updated Medical Office Suite

    5-5701 Overseas Hwy, Marathon, FL 33050

    $275,000

    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 66 Potential Opportunities for your consideration. Besides 9 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 1 Land Listings that present a potential for development.

    Opportunities in Nearby Cities

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

    Oceanfront Mixed-Use Property
    Oceanfront Mixed-Use Property

    Islamorada, FL 33036

    $1,680,000
    1,980 sqft 0.16 AC lot

    Neighborhood Commercial zoning supports a flexible residential and commercial configuration with Atlantic Ocean frontage.

    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.

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

    88101 Old Hwy, Plantation Key, FL 33036

    Contact for pricing
    2,244 sqft

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

    View details
    Mixed-Use Live-Work Property
    Mixed-Use Live-Work Property

    Islamorada, FL 33036

    $1,680,000

    Mixed-use property on the Overseas Highway with ocean views and substantial parking, currently configured with residential/commercial spaces.

    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 Mixed-Use Land
    Oceanfront Mixed-Use Land

    57478 Overseas Highway, Marathon, FL 33050

    $7,000,000
    2.37 AC lot

    The parcel carries MU - Mixed Use Commercial zoning at a Marathon address in the Florida Keys.

    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

    $2,155,000
    Estimated value
    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
    $295,000
    Estimated value
    947 sqft 1.70 AC lot
    View details
    9701 Overseas Hwy1b
    PROFESSIONAL BUILDING

    9701 Overseas Hwy1b, Marathon, FL 33050-3342

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

    13361 Overseas Hwy, Marathon, FL 33050-3550

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

    9705 Overseas Hwy, Marathon, FL 33050-3342

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

    13371 Overseas Hwy, Marathon, FL 33050-3550

    $1,250,000
    Estimated value
    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
    $280,000
    Estimated value
    947 sqft 1.70 AC lot
    View details
    6400 Overseas Hwy
    PROFESSIONAL BUILDING

    6400 Overseas Hwy, Marathon, FL 33050-2786

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

    6803 Overseas Hwy, Marathon, FL 33050-3125

    $1,065,000
    Estimated value
    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
    $205,000
    Estimated value
    947 sqft 1.70 AC lot
    View details
    6677 Overseas Hwy
    OFFICE BUILDING (MULTI-STORY)

    6677 Overseas Hwy, Marathon, FL 33050-2734

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

    13688 Overseas Hwy, Marathon, FL 33050-3552

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

    1477 Overseas Hwy, Marathon, FL 33050-2116

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

    11187 Overseas Hwy, Marathon, FL 33050-3460

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

    3770 Overseas Hwy, Marathon, FL 33050-2339

    $3,185,000
    Estimated value
    11,234 sqft 1.22 AC lot
    View details

    Marathon, FL Office Spaces Market Trends and Statistics

    Explore 61 office spaces for sale in Marathon, FL, showcased through 9 active listings on our real estate platform. These investment opportunities span a total of 22,465 square feet of properties for sale, with an estimated market value of $6,181,333.

    Sale prices for office spaces in Marathon, FL start at $99,000, averaging $1,236,266, and reaching up to $3,549,000 — 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

    Office Units 18
    Medical Office Space 8
    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 $1M

    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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