Marathon, FL Office Units for Rent & Lease

Updated: Sep 23

Office Unit with Foyer

5270 Overseas Highway, Marathon, FL 33050

$3,000/Mo

500 sqft

500‑square‑foot office unit
Foyer with access to 2 restrooms
Meeting area available for larger gatherings by appointment
Possible access to exterior growing areas
Central heating

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Updated: Jul 30

Combined Professional Office Units

10055-10095 Overseas Hwy, Marathon, FL 33050

$2,228/Mo

2,139 sqft

Approximately 2,139 square feet currently configured as one combined suite
Units 10005 and 10015 are presently combined
Potential future division into two units of approximately 1,069 square feet each
Expected availability January 1, 2027
Located along the Overseas Highway corridor in Marathon

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Professional Office Units

5701 Overseas Hwy, Marathon, FL 33050

Contact for pricing

4,139 sqft

Professional center includes medical, legal, service, retail, and social-service occupants.

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Top-Floor Office Unit

207208-11400 Overseas Hwy, Marathon, FL 33050

$2,300/Mo

Flexible workspace with reception, private office, break area, elevator access, parking, and US-1 signage availability.

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Top-Floor Office Suite with Private Bath

216217-11400 Overseas Hwy, Marathon, FL 33050

$2,300/Mo

Top-floor office suite in a managed commercial plaza with private bath, elevator access, and ample client parking.

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Shared Office Space with Natural Lighting

9141 Overseas Hwy, Marathon, FL 33050

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83 sqft

Shared office space in the Marathon Berkshire Business Center with electric and water included.

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Based on your search, we've compiled 16 Potential Opportunities for your consideration. Besides 6 Active listings in Marathon, FL, we suggest exploring alternatives. Consider Similar 4 Spaces in Nearby Cities, and Similar 6 Properties for Sales.

Office Units for Lease in Nearby Cities

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

Office Unit with Private Bathroom

2-85992 Overseas Highway, Plantation Key, FL 33036

$2,900/Mo

394 sqft

Ground-level workspace includes air conditioning, power, water, and on-site parking.

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Four-Office Professional Suite

29872 Overseas Highway, Big Pine Key, FL 33043

$3,500/Mo

1,440 sqft 0.43 AC lot

Renovated workspace combines private offices with a shared area on US-1.

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Renovated Office Unit

1-29872 Overseas Hwy, Big Pine Key, FL 33042

$3,500/Mo

1,440 sqft

Elevated professional suite with four private offices, a shared common area, and two restrooms.

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Office Unit with Fenced Storage

C2-88900 Overseas Highway, Plantation Key, FL 33070

$2,500/Mo

Includes use of one fenced storage area positioned behind the business.

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Similar Spaces for Sale in Marathon, FL

Consider Similar Space for Sale. We found 6 Spaces matching your search parameters.

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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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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Mixed-Use Building with Drive-Through

11401 Overseas Highway, Marathon, FL 33050

$1,533,333

3,429 sqft 0.34 AC lot

MU - Mixed Use Commercial zoning supports office and retail use potential.

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Shared Office Coworking Space

9141 Overseas Highway, Marathon, FL 33050

Contact for pricing

84 sqft 0.47 AC lot

Professional workspace within a mixed-use commercial property with shared break-room and restroom facilities.

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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

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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Marathon, FL Office Units Lease Rates & Market Statistics

Explore 6 Office Units for lease in Marathon, FL on Realmo, a commercial real estate exchange covering the Marathon area. The current inventory totals 6,861 square feet of properties.

Asking lease rates for Office Units in Marathon start at $12.50 SF/Yr, average $42.25 SF/Yr, and reach $72 SF/Yr at the top of the market. That's a 6x spread between entry-level and premium space, making side-by-side comparison of asking rents and lease terms essential. At $42.25 SF/Yr, the local average runs 17% above Florida's state average of $36.25 SF/Yr.

Marathon accounts for 15% of the 41 office units currently available across Monroe County, where nearby markets include Key West and Key Largo. Office Units make up 60% of the 10 Office Spaces currently for lease in Marathon, with asking rates averaging $42.25 SF/Yr — 78% above the citywide Office Spaces average of $23.79 SF/Yr. Also worth a look for tenants weighing alternatives: Other office properties (3 listings) elsewhere in the Marathon market.