Real Estate Investment Properties for Sale in Marathon, FL

Looking for investment property in Marathon, FL with high ROI ?

Explore a variety of short-term homes & houses in Marathon, FL. Invest wisely with VRBO & Marathon, FL Airbnb properties available for purchase. Find your ideal investment property among our curated listings for a rewarding real estate venture.

Single Family Homes for Sale in Marathon, FL

Search for Single Family Residential for Sale in Marathon, Florida. Browse all of Mashvisor’s Single Family Residential listings and other investment property types including Single Family Homes, Multi Family Homes, Condos, Townhouses and Other Homes.

Showing 59 Single Family Residential listings of over 500,000 total investment properties for sale. Visit Mashvisor.com to all investment properties.

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PROPERTY	DETAILS	SALE PRICE	INVESTMENT PERFORMANCE
6099 Overseas Highway 10E Marathon, FL Owner Financing Possible! Escape to the heart of the Florida Keys with this delightful 1-b...	1 beds \| 1 baths \| 576 sq.ft.	$269,000	Airbnb cash on cash: 8.04% Traditional cash on cash: 5.22% Airbnb Rental Income: $3440 Traditional Rental Income: $1962 Airbnb ROI: 8.04% Traditional ROI: 5.22%
7951 Gulfstream Boulevard Marathon, FL Nestled in a beautiful Marathon Florida neighborhood, this concrete-built gem offers a pee...	3 beds \| 2 baths \| 1,538 sq.ft.	$689,000	Airbnb cash on cash: 7.45% Traditional cash on cash: 4.19% Airbnb Rental Income: $7137 Traditional Rental Income: $3663 Airbnb ROI: 7.45% Traditional ROI: 4.19%
1037 82Nd Street Ocean Street Ocean Marathon, FL Introducing an exquisite fairly new constructed home in Marathon, FL, boasting four bedroo...	4 beds \| 5 baths \| 2,160 sq.ft.	$1,775,000	Airbnb cash on cash: 3.68% Traditional cash on cash: 1.85% Airbnb Rental Income: $10583 Traditional Rental Income: $5617 Airbnb ROI: 3.68% Traditional ROI: 1.85%
850 92Nd Street Marathon, FL Arrive in style, fly into the Marathon Airport and walk across the street to this Beautifu...	5 beds \| 4 baths \| 3,000 sq.ft.	$3,277,000	Airbnb cash on cash: 2.2% Traditional cash on cash: 0.54% Airbnb Rental Income: $12360 Traditional Rental Income: $5065 Airbnb ROI: 2.2% Traditional ROI: 0.54%
126 Sunrise Drive Marathon, FL * JUST COMPLETED AUGUST 2025 * Nestled on the exclusive private gated island of Sunrise I...	5 beds \| 4 baths \| 3,415 sq.ft.	$6,700,000	Airbnb cash on cash: 0.55% Traditional cash on cash: -0.06% Airbnb Rental Income: $12360 Traditional Rental Income: $6325 Airbnb ROI: 0.55% Traditional ROI: -0.06%
707 Sombrero Beach Road Marathon, FL Experience the ultimate Florida Keys lifestyle in this stunning canalfront concrete home s...	4 beds \| 5 baths \| 4,262 sq.ft.	$3,350,000	Airbnb cash on cash: 1.17% Traditional cash on cash: 0.42% Airbnb Rental Income: $10583 Traditional Rental Income: $6297 Airbnb ROI: 1.17% Traditional ROI: 0.42%
120 Pirates Cove Drive Marathon, FL Experience waterfront living at its finest in this beautiful 2 story residence with a gro...	4 beds \| 4 baths \| 3,476 sq.ft.	$2,850,000	Airbnb cash on cash: 1.99% Traditional cash on cash: 0.55% Airbnb Rental Income: $10583 Traditional Rental Income: $4834 Airbnb ROI: 1.99% Traditional ROI: 0.55%
1021 27th Street Ocean Marathon, FL Brand New Coming in 2025: A Luxurious Waterfront Haven with Unparalleled Water Vistas, and...	5 beds \| 5 baths \| 3,200 sq.ft.	$2,749,000	Airbnb cash on cash: 2.79% Traditional cash on cash: 1.42% Airbnb Rental Income: $12360 Traditional Rental Income: $6610 Airbnb ROI: 2.79% Traditional ROI: 1.42%
6099 Overseas Highway #UNIT 95W Marathon, FL Incredible opportunity to own a piece of paradise! This waterfront 2 bedroom 1 full bathr...	2 beds \| 1 baths \| 480 sq.ft.	$540,000	Airbnb cash on cash: 6.19% Traditional cash on cash: 2.71% Airbnb Rental Income: $5335 Traditional Rental Income: $2496 Airbnb ROI: 6.19% Traditional ROI: 2.71%
11339 5Th Avenue Ocean Marathon, FL NOT a Trailer - CBS Construction * GREAT PROPERTY in the Heart of Little Venice Marat...	2 beds \| 1 baths \| 1,096 sq.ft.	$599,995	Airbnb cash on cash: 5.77% Traditional cash on cash: 5.41% Airbnb Rental Income: $5335 Traditional Rental Income: $4059 Airbnb ROI: 5.77% Traditional ROI: 5.41%
57121 Morton Street Marathon, FL Morton Manor is a timeless estate nestled along the Gulf's bay waters, evoking a sense of ...	4 beds \| 5 baths \| 5,168 sq.ft.	$8,499,000	Airbnb cash on cash: -0.27% Traditional cash on cash: -0.5% Airbnb Rental Income: $10583 Traditional Rental Income: $6855 Airbnb ROI: -0.27% Traditional ROI: -0.5%
101 Windy Point Circle Marathon, FL For Sale by Owner/agent & priced below market value! Discover your dream waterfront lifest...	4 beds \| 3 baths \| 2,620 sq.ft.	$2,999,000	Airbnb cash on cash: 1.43% Traditional cash on cash: -0.74% Airbnb Rental Income: $10583 Traditional Rental Income: $2597 Airbnb ROI: 1.43% Traditional ROI: -0.74%
1021 82nd Street Marathon, FL Welcome to your dream home in the breathtaking Florida Keys! This newly built, four-bedroo...	4 beds \| 5 baths \| 2,160 sq.ft.	$1,975,000	Airbnb cash on cash: 3.08% Traditional cash on cash: 1.84% Airbnb Rental Income: $10583 Traditional Rental Income: $6359 Airbnb ROI: 3.08% Traditional ROI: 1.84%
58704 Overseas Highway Marathon, FL Welcome to a rare gem in Grassy Key--this unique property offers an incredible opportunity...	2 beds \| 1 baths \| 1,160 sq.ft.	$642,000	Airbnb cash on cash: 5.26% Traditional cash on cash: 1.78% Airbnb Rental Income: $5335 Traditional Rental Income: $2167 Airbnb ROI: 5.26% Traditional ROI: 1.78%
1190 91st St Ocean Marathon, FL Experience the breathtaking beauty of Marathon Key with this exceptional waterfront proper...	3 beds \| 2 baths \| 1,056 sq.ft.	$1,175,000	Airbnb cash on cash: 3.48% Traditional cash on cash: 1.72% Airbnb Rental Income: $7137 Traditional Rental Income: $3835 Airbnb ROI: 3.48% Traditional ROI: 1.72%
699 116Th Street Ocean Marathon, FL Tropical Keys Cottage with Ocean Views and plenty Outdoor Entertaining! Bright and airy, t...	2 beds \| 2 baths \| 1,176 sq.ft.	$789,000	Airbnb cash on cash: 3.93% Traditional cash on cash: 2.06% Airbnb Rental Income: $5335 Traditional Rental Income: $2883 Airbnb ROI: 3.93% Traditional ROI: 2.06%
2919 Sombrero Boulevard Marathon, FL A beautifully upgraded waterfront home in Marathon's desirable Sombrero Golf Course neighb...	3 beds \| 4 baths \| 2,540 sq.ft.	$2,899,000	Airbnb cash on cash: 0.27% Traditional cash on cash: 0.49% Airbnb Rental Income: $7137 Traditional Rental Income: $6357 Airbnb ROI: 0.27% Traditional ROI: 0.49%
564 Sombrero Beach Road Marathon, FL Coastal Luxury Meets Keys Living - Dock, Pool & Guest Suite!Welcome to your slice of parad...	3 beds \| 3 baths \| 1,953 sq.ft.	$2,150,000	Airbnb cash on cash: 1.33% Traditional cash on cash: 0.53% Airbnb Rental Income: $7137 Traditional Rental Income: $4152 Airbnb ROI: 1.33% Traditional ROI: 0.53%
1109 76th Street Ocean Marathon, FL FL Keys poolside paradise! Enclosed 720sq ft area- opens to pool oasis and lounge area-per...	3 beds \| 2 baths \| 1,200 sq.ft.	$827,000	Airbnb cash on cash: 5.47% Traditional cash on cash: 2.1% Airbnb Rental Income: $7137 Traditional Rental Income: $3161 Airbnb ROI: 5.47% Traditional ROI: 2.1%
57485 Gibson Street Marathon, FL Above Flood! Charm and Comfort in Grassy Key - Your Slice of Paradise Awaits! Discover the...	3 beds \| 2 baths \| 1,056 sq.ft.	$595,000	Airbnb cash on cash: 8.37% Traditional cash on cash: 2.31% Airbnb Rental Income: $7137 Traditional Rental Income: $2394 Airbnb ROI: 8.37% Traditional ROI: 2.31%
59733 Paradise Place Marathon, FL Spectacular new construction home coming soon in Grassy Key, Marathon. This fully concrete...	5 beds \| 5 baths \| 4,000 sq.ft.	$4,500,000	Airbnb cash on cash: 1.32% Traditional cash on cash: -0.3% Airbnb Rental Income: $12360 Traditional Rental Income: $3354 Airbnb ROI: 1.32% Traditional ROI: -0.3%
104 52Nd St Ocean Street Marathon, FL LUXURY WATERFRONT HOME WITH STUNNING WATER VIEWS FROM ALMOST EVERY ROOM OR HAVE EXCEPTIONA...	3 beds \| 3 baths \| 1,481 sq.ft.	$1,455,000	Airbnb cash on cash: 2.46% Traditional cash on cash: 1.33% Airbnb Rental Income: $7137 Traditional Rental Income: $4233 Airbnb ROI: 2.46% Traditional ROI: 1.33%
11250 5Th Avenue Gulf Avenue Marathon, FL Welcome to this charming waterfront home located at 11250 5th Avenue Gulf in Marathon, FL....	5 beds \| 3 baths \| 1,904 sq.ft.	$1,180,000	Airbnb cash on cash: 7.3% Traditional cash on cash: 2.73% Airbnb Rental Income: $12360 Traditional Rental Income: $5098 Airbnb ROI: 7.3% Traditional ROI: 2.73%
840 62Nd Street Ocean Street Marathon, FL Your piece of Marathon paradise! Don't miss this completely upgraded 3 bedroom / 3 bathroo...	3 beds \| 3 baths \| 1,380 sq.ft.	$1,595,000	Airbnb cash on cash: 2.38% Traditional cash on cash: 1.26% Airbnb Rental Income: $7137 Traditional Rental Income: $4096 Airbnb ROI: 2.38% Traditional ROI: 1.26%
114 Calle Ensueno Marathon, FL Welcome to Casa De Artista, a one-of-a-kind luxury estate located in the exclusive enclave...	4 beds \| 5 baths \| 4,948 sq.ft.	$5,995,000	Airbnb cash on cash: 0.12% Traditional cash on cash: -0.22% Airbnb Rental Income: $10583 Traditional Rental Income: $6756 Airbnb ROI: 0.12% Traditional ROI: -0.22%
58213 Morton Street Marathon, FL Nestled on a secluded 2-acre lot in Grassy Key, Marathon, this gated waterfront estate boa...	3 beds \| 5 baths \| 4,000 sq.ft.	$4,699,000	Airbnb cash on cash: -0.02% Traditional cash on cash: 0.21% Airbnb Rental Income: $7137 Traditional Rental Income: $6781 Airbnb ROI: -0.02% Traditional ROI: 0.21%
82 Tingler Lane Marathon, FL Sprawling Sombrero Beach newly renovated retreat on an oversized lot with pool, private sa...	4 beds \| 4 baths \| 3,222 sq.ft.	$3,699,000	Airbnb cash on cash: 0.93% Traditional cash on cash: 1.11% Airbnb Rental Income: $10583 Traditional Rental Income: $9239 Airbnb ROI: 0.93% Traditional ROI: 1.11%
720 90th Street Ocean Marathon, FL Escape to your dream home in the Florida Keys. This stunning New 2023-built stilted home ...	2 beds \| 2 baths \| 1,120 sq.ft.	$1,075,000	Airbnb cash on cash: 2.75% Traditional cash on cash: 1.57% Airbnb Rental Income: $5335 Traditional Rental Income: $3071 Airbnb ROI: 2.75% Traditional ROI: 1.57%
890 79th Street Ocean Marathon, FL Charming pool home with ample space for tranquil living and entertaining in the fabulous F...	3 beds \| 2 baths \| 1,595 sq.ft.	$799,000	Airbnb cash on cash: 6.22% Traditional cash on cash: 3.68% Airbnb Rental Income: $7137 Traditional Rental Income: $3868 Airbnb ROI: 6.22% Traditional ROI: 3.68%
306 N Anglers Drive #UNIT B Marathon, FL OPEN HOUSE Saturday 8/23 from 1:00 PM to 3:00 PM Waterfront Half Duplex in Desirable ...	2 beds \| 2 baths \| 984 sq.ft.	$798,000	Airbnb cash on cash: 3.75% Traditional cash on cash: 2.07% Airbnb Rental Income: $5335 Traditional Rental Income: $3008 Airbnb ROI: 3.75% Traditional ROI: 2.07%
5 E Ocean Drive Marathon, FL Rising majestically above the sparkling Atlantic, this Concrete Fortress on Marathon's pre...	4 beds \| 5 baths \| 5,340 sq.ft.	$5,499,000	Airbnb cash on cash: 0.3% Traditional cash on cash: 0.37% Airbnb Rental Income: $10583 Traditional Rental Income: $9004 Airbnb ROI: 0.3% Traditional ROI: 0.37%
875 50Th Street Gulf Marathon, FL At the very tip of a private peninsula in the heart of the Florida Keys, this stunning Gul...	5 beds \| 5 baths \| 4,146 sq.ft.	$6,500,000	Airbnb cash on cash: 0.14% Traditional cash on cash: -0.5% Airbnb Rental Income: $12360 Traditional Rental Income: $6249 Airbnb ROI: 0.14% Traditional ROI: -0.5%
231 Sombrero Beach Road #UNIT 1 Marathon, FL Experience the ultimate in Florida Keys living at this canal front 4-bedroom, 3-bath 1,88...	4 beds \| 3 baths \| 1,888 sq.ft.	$1,299,000	Airbnb cash on cash: 5.28% Traditional cash on cash: 1.88% Airbnb Rental Income: $10583 Traditional Rental Income: $4524 Airbnb ROI: 5.28% Traditional ROI: 1.88%
11554 5th Avenue Ocean Marathon, FL This Cozy and Charming three-bedroom 2, two-bath home is located in the Little Venice neig...	3 beds \| 2 baths \| 1,222 sq.ft.	$730,000	Airbnb cash on cash: 6.91% Traditional cash on cash: 2.57% Airbnb Rental Income: $7137 Traditional Rental Income: $2810 Airbnb ROI: 6.91% Traditional ROI: 2.57%
56 Pelican Rd Marathon, FL Bayfront Paradise â A Rare Opportunity! MOTIVATED SELLER! Unique bayfront home nestled ...	2 beds \| 1 baths \| 864 sq.ft.	$1,449,000	Airbnb cash on cash: 1.08% Traditional cash on cash: -0.14% Airbnb Rental Income: $5335 Traditional Rental Income: $2612 Airbnb ROI: 1.08% Traditional ROI: -0.14%
126 SE Sunrise Dr Marathon, FL " JUST COMPLETED AUGUST 2025 " Nestled on the exclusive, gated island of Sunrise Isles in ...	5 beds \| 4 baths \| 3,415 sq.ft.	$6,700,000	Airbnb cash on cash: 0.54% Traditional cash on cash: -0.02% Airbnb Rental Income: $12360 Traditional Rental Income: $6634 Airbnb ROI: 0.54% Traditional ROI: -0.02%
243 Sombrero Beach Rd #2 Marathon, FL SPECTACULAR 1800 SQ FT HOME FEATURING 4 BEDROOM 3 BATH 1 WITH HUGE COVERED BALCONY & SPACI...	4 beds \| 3 baths \| 1,888 sq.ft.	$1,390,000	Airbnb cash on cash: 4.92% Traditional cash on cash: 1.32% Airbnb Rental Income: $10583 Traditional Rental Income: $3988 Airbnb ROI: 4.92% Traditional ROI: 1.32%
101 Dorsett Dr Marathon, FL This stunning new construction home, set to be completed by August 2025, offers the perfec...	4 beds \| 3 baths \| 2,465 sq.ft.	$3,200,000	Airbnb cash on cash: 1.84% Traditional cash on cash: 0.42% Airbnb Rental Income: $10583 Traditional Rental Income: $4416 Airbnb ROI: 1.84% Traditional ROI: 0.42%
500 Sombrero Beach Rd Marathon, FL Welcome to your tropical paradise dream island escape in the FL Keys, located in the heart...	2 beds \| 2 baths \| 1,057 sq.ft.	$1,550,000	Airbnb cash on cash: 1.13% Traditional cash on cash: 0.2% Airbnb Rental Income: $5335 Traditional Rental Income: $2905 Airbnb ROI: 1.13% Traditional ROI: 0.2%
104 52nd Street Ocean Marathon, FL STUNNING 3 BEDROOM 3 BATH TURN KEY LUXURY HOME THAT IS CURRENTLY A FULLY FURNISHED TURN-KE...	3 beds \| 3 baths \| 1,481 sq.ft.	$1,455,000	Airbnb cash on cash: 2.46% Traditional cash on cash: 0.88% Airbnb Rental Income: $7137 Traditional Rental Income: $3632 Airbnb ROI: 2.46% Traditional ROI: 0.88%

Your search for investment property begins and ends here

Single Family Homes for Sale in Marathon, FL

6099 Overseas Highway 10E

Marathon, FL

1 beds | 1 baths | 576 sq.ft.

$269,000

Airbnb cash on cash: 8.04%

Traditional cash on cash: 5.22%

Airbnb Rental Income: $3440

Traditional Rental Income: $1962

Airbnb ROI: 8.04%

Traditional ROI: 5.22%

7951 Gulfstream Boulevard

Marathon, FL

3 beds | 2 baths | 1,538 sq.ft.

$689,000

Airbnb cash on cash: 7.45%

Traditional cash on cash: 4.19%

Airbnb Rental Income: $7137

Traditional Rental Income: $3663

Airbnb ROI: 7.45%

Traditional ROI: 4.19%

1037 82Nd Street Ocean Street Ocean

Marathon, FL

4 beds | 5 baths | 2,160 sq.ft.

$1,775,000

Airbnb cash on cash: 3.68%

Traditional cash on cash: 1.85%

Airbnb Rental Income: $10583

Traditional Rental Income: $5617

Airbnb ROI: 3.68%

Traditional ROI: 1.85%

850 92Nd Street

Marathon, FL

5 beds | 4 baths | 3,000 sq.ft.

$3,277,000

Airbnb cash on cash: 2.2%

Traditional cash on cash: 0.54%

Airbnb Rental Income: $12360

Traditional Rental Income: $5065

Airbnb ROI: 2.2%

Traditional ROI: 0.54%

126 Sunrise Drive

Marathon, FL

5 beds | 4 baths | 3,415 sq.ft.

$6,700,000

Airbnb cash on cash: 0.55%

Traditional cash on cash: -0.06%

Airbnb Rental Income: $12360

Traditional Rental Income: $6325

Airbnb ROI: 0.55%

Traditional ROI: -0.06%

707 Sombrero Beach Road

Marathon, FL

4 beds | 5 baths | 4,262 sq.ft.

$3,350,000

Airbnb cash on cash: 1.17%

Traditional cash on cash: 0.42%

Airbnb Rental Income: $10583

Traditional Rental Income: $6297

Airbnb ROI: 1.17%

Traditional ROI: 0.42%

120 Pirates Cove Drive

Marathon, FL

4 beds | 4 baths | 3,476 sq.ft.

$2,850,000

Airbnb cash on cash: 1.99%

Traditional cash on cash: 0.55%

Airbnb Rental Income: $10583

Traditional Rental Income: $4834

Airbnb ROI: 1.99%

Traditional ROI: 0.55%

1021 27th Street Ocean

Marathon, FL

5 beds | 5 baths | 3,200 sq.ft.

$2,749,000

Airbnb cash on cash: 2.79%

Traditional cash on cash: 1.42%

Airbnb Rental Income: $12360

Traditional Rental Income: $6610

Airbnb ROI: 2.79%