Grassy Key (58.9) Real Estate, Homes, Condos for Sale in Marathon, FL

2 Beds ⋅ 2 Baths ⋅ 620832 MLS

2-bedroom, 2-bathroom home in Grassy Key, featuring a deep-water dock with easy access to the ocean, just a short ride away from its Gulf-side location. Enjoy a beautiful pool and ample parking space, along with breathtaking sunsets from your backyard paradise! Each bedroom boasts its own en-suite bathroom, ensuring comfort and privacy. A perfect investment opportunity or a dream retreat!

57477 Morton St, Marathon

$3,400,000

5 Beds ⋅ 5 Baths ⋅ 619897 MLS

CONSTRUCTION COMPLETE! SeaGlass Cove is a brand-new luxury, gated island community located in the heart of the Florida Keys, adjacent to Duck Key. A rare find of just 14 new construction residences offering direct Atlantic Ocean views, a resort-style pool, pickleball court, and sandy beach with the flexibility of a weekly rental. The first floor offers a private two-car garage and covered cabana with spacious outdoor living space that leads out to the pool deck and beach. The second floor features an open floor plan with spacious kitchen, dining, and great room all overlooking the Atlantic Ocean. One en-suite bedroom on this floor provides seclusion for guests. On the top floor, you'll find the primary suite with a luxurious spa bath, a second guest suite and two additional guest bedrooms that share a bath. Luxuriously finished with high-end KitchenAid appliances, waterfall quartz countertops, full-height backsplashes, and much more. Additionally, this residence offers upgrades including an outdoor summer kitchen, an exterior spiral staircase from the second down to the first floor, and a fire pit. SeaGlass Cove is barefoot luxury at its best!

59720 Overseas Highway Unit 10, Marathon

$3,100,000

5 Beds ⋅ 5 Baths ⋅ 619896 MLS

CONSTRUCTION COMPLETE! MOVE-IN AND RENTAL READY! SeaGlass Cove is a brand-new luxury, gated island community located in the heart of the Florida Keys; adjacent to Duck Key. A rare find of just 14 new construction residences offering direct Atlantic Ocean views, a resort-style pool, pickleball court, and a sandy beach with the flexibility of a weekly rental. The first floor offers a private two-car garage and covered cabana with spacious outdoor living space that leads out to the pool deck and beach. The second floor features an open floor plan with spacious kitchen, dining, and great room all overlooking the Atlantic Ocean. One en-suite bedroom on this floor provides seclusion for guests. On the top floor, you'll find the primary suite with a luxurious spa bath, a second guest suite and two additional guest bedrooms that share a bath. Luxuriously finished with high-end KitchenAid appliances, waterfall quartz countertops, full-height backsplashes and much more. Additionally, this residence offers upgrades including an outdoor summer kitchen, an exterior spiral staircase from the second floor down to the first floor, and a fire pit. SeaGlass Cove is barefoot luxury at its best!

59720 Overseas Highway Unit 9, Marathon

$1,750,000

3 Beds ⋅ 2 Baths ⋅ 619885 MLS

Welcome to Key Lime Kottage, a charming waterfront retreat in Grassy Key where life slows down, the water calls, and every day feels like a Florida Keys escape. Currently in a vacation rental program, this turn-key 3-bedroom, 2-bath home offers buyers and investors the rare combination of personal enjoyment, rental potential, privacy, and resort-style living. Kindly provide at least 24 hours' notice for showings. Preferred showing times are Saturdays during check-in/check-out windows, when access is most convenient. Tucked behind lush tropical landscaping, Key Lime Kottage welcomes you with soft yellow cottage charm, a metal roof, white picket appeal, and a peaceful waterfront setting that immediately invites you to relax. From the moment guests arrive, they can imagine themselves slowing down, breathing deeper, and enjoying the Keys lifestyle. A beautiful composite dock leads through the mangroves toward open Gulf views, creating the perfect place for morning coffee, kayaking, paddleboarding, sunset conversations, or quiet moments by the water. The outdoor living area is the heart of the property. With a screened-in pool, spa, covered lounging space, and natural privacy, it feels like a private resort designed for relaxation, connection, and unforgettable memories. Inside, the open living, dining, and kitchen layout feels warm, easy, and welcoming. The home is ready for immediate enjoyment, whether as a personal retreat, a vacation rental investment, or both. For investors, Key Lime Kottage offers strong guest appeal with waterfront living, Gulf views, pool and spa amenities, and proximity to the Dolphin Research Center, The Wreck Restaurant, downtown Marathon, grocery shopping, marinas, entertainment, and MillionAir. Buyers are not just purchasing a property here. They are stepping into peaceful mornings, golden sunsets, waterfront memories, and a Florida Keys lifestyle guests will want to return to again and again.

58773 Overseas Hwy, Marathon

$3,500,000

4 Beds ⋅ 5 Baths ⋅ 609718 MLS

CONSTRUCTION COMPLETE! MOVE-IN AND RENTAL READY! SeaGlass Cove is a brand-new luxury, gated island community located in the heart of the Florida Keys adjacent to Duck Key. A rare find of just 14 new construction residences offering four and five-bedroom floor plans all with direct Atlantic Ocean views, a resort style pool, pickleball court, sandy beach, and the flexibility of a weekly rental. The first floor offers a private two car garage and covered cabana with spacious outdoor living space that leads out to the private beach and pool deck. The second floor features an open floor plan with spacious kitchen, dining and great rooms all overlooking the Atlantic Ocean. One en-suite bedroom on this floor provides seclusion for guests. On the top floor you'll find the primary suite with luxurious spa bath and three additional guest bedrooms. The homes are finished with high end KitchenAid appliances, waterfall quartz countertops, full height backsplashes, custom closets and much more. Additionally this residence offers upgrades including: elevator, outdoor summer kitchen, exterior spiral staircase to first floor, custom millwork, brass fixtures and fire pit. SeaGlass Cove is barefoot luxury at its best.

59720 Overseas Highway Unit 8, Marathon

$900,000

619425 MLS

Rare opportunity to own a ROGO Exempt oceanfront property in Marathon! This expansive 56,488 sq. ft. parcel offers approximately 100 feet of direct ocean frontage and stretches nearly 570 feet deep, creating the perfect setting for a private estate or investment property. Previously improved with a residence (just recently removed), this cleared and buildable lot allows you to build immediately upon plan approval, saving valuable time and money in the development process. The unique depth of the property provides the opportunity for a long, private driveway, enhancing privacy and estate-like appeal. Enjoy endless open ocean views and refreshing ocean breezes from your future home. Zoned for weekly rentals, this property is ideal for developers or buyers seeking strong income potential in one of the Florida Keys' most desirable markets. Conveniently located just minutes from Marathon Jet Center, Dolphin Research Center, and an array of waterfront dining, shopping, and local attractions. Whether you're building a luxury residence or an income-producing vacation rental, this is a rare, ready-to-build oceanfront offering you don't want to miss.

58876 Overseas Hwy, Marathon

$2,975,000

5 Beds ⋅ 5 Baths ⋅ 608751 MLS

CONSTRUCTION COMPLETE! MOVE-IN AND RENTAL READY! SeaGlass Cove is a brand-new luxury, gated island community located in the heart of the Florida Keys; adjacent to Duck Key. A rare find of just 14 new construction residences offering direct Atlantic Ocean views, a resort-style pool, pickleball court, sandy beach with the flexibility of a weekly rental. The first floor offers a private two-car garage and covered cabana with spacious outdoor living space that leads out to the pool deck and beach. The second floor features an open floor plan with spacious kitchen, dining, and great room all overlooking the Atlantic Ocean. One en-suite bedroom on this floor provides seclusion for guests. On the top floor, you'll find the primary suite with a luxurious spa bath, a second guest suite and two additional guest bedrooms that share a bath. Luxuriously finished with high-end KitchenAid appliances, waterfall quartz countertops, full-height backsplashes, custom closets, and much more. Additionally, this residence offers upgrades including an outdoor summer kitchen, an exterior spiral staircase from the second down to the first floor, and a fire pit. SeaGlass Cove is barefoot luxury at its best!

59720 Overseas Highway Unit 7, Marathon

$440,000

2 Beds ⋅ 1 Baths ⋅ 614505 MLS

Welcome to 57538 Bailey St! This tastefully decorated 2-bedroom home is a gem. The modern kitchen features stainless steel appliances, including a dishwasher, microwave, and range. Upstairs, enjoy the convenience of central A/C and an in-unit washer/dryer. The downstairs area is a tropical oasis, complete with a fenced yard, tiki hut, hot tub, and cozy sitting area—perfect for entertaining. Nestled just a short drive from Marathon's vibrant offerings: Shopping, aquatic adventures, and dining options. To explore this inviting property in person, call today!

57538 Bailey St, Marathon

$757,000

3 Beds ⋅ 2 Baths ⋅ 611201 MLS

Welcome to 71 Dorsett Dr. This 3 bedroom / 2 bath concrete home is waiting for you to move in. Enter the home from a generous platformed staircase to enjoy spacious living areas with updated kitchen, separate laundry room, all new impact windows, new roof and updated bath. There is covered parking for 2 plus off-street parking and room on the side for your boat trailer, as well as a large enclosed workshop and tons of lower level space. There is much more to this property than meets the eye. There are a few nearby public boat ramps and the property owners on Dorsett enjoy some private boat ramp privileges. Please call for more information. Schedule a walk thru of your new Keys Home today!

71 Dorsett Dr, Marathon

$3,208,993

5 Beds ⋅ 5 Baths ⋅ 603440 MLS

SeaGlass Cove is a brand-new luxury, gated island community located in the heart of the Florida Keys adjacent to Duck Key. A rare find of just 14 new construction residences offering four and five-bedroom floor plans all with direct Atlantic Ocean views, a resort style pool, pickleball court, sandy beach, and the flexibility of a weekly rental. The first floor offers a private two car garage and covered cabana with spacious outdoor living space that leads out to the private beach and pool deck. The second floor features an open floor plan with spacious kitchen, dining and great rooms all overlooking the Atlantic Ocean. One en-suite bedroom on this floor provides seclusion for guests. On the top floor you'll find the primary suite with luxurious spa bath and the option of two or three additional guest bedrooms. The homes are finished with high end KitchenAid appliances, waterfall quartz countertops, full height backsplashes, custom closets and much more. Additionally, SeaGlass Cove offers select upgrade options including, elevator/lift, exterior spiral staircase, summer kitchen, custom millwork and Wolf/Sub-Zero appliances. SeaGlass Cove is barefoot luxury at its best.

59720 Overseas Highway Unit 2, Marathon

$1,327,500

2 Beds ⋅ 2 Baths ⋅ 612969 MLS

Breathtaking Ocean Views from every room in the house! This Ocean Front Gem at 57580 Overseas Hwy in Marathon boasts a stunning open water location with over a 1/3 of an acre that is beautifully landscaped. This charming 2 bedroom 2 bath home greets you with vaulted ceilings and Dade County pine, with a split floorplan offering plenty of open space. Enjoy the plentiful natural light during the day, and enjoy a sunset by the fireplace in the evening. Kitchen has been upgraded with Granite counters and new cabinets in 2018, and the guest bathroom has been completely updated. Large wrap around porch to enjoy the keys weather and views of marine life. Plenty of storage downstairs and over 100' of sandy shoreline to enjoy. Home has been lightly used by the current owners and is just awaiting your personal touches to make it your perfect open water home in the Florida Keys.

57580 Overseas Hwy, Marathon

$1,499,000

3 Beds ⋅ 2 Baths ⋅ 609133 MLS

Paradise Found! Don't miss this amazing opportunity to own your own slice of paradise in the Florida Keys! Introducing ''Key Lime Kottage'' - a 3 bedroom/2 bath waterfront home on approx a ½ acre private lot in Grassy Key! This home is being sold completely turn-key and is currently a very successful weekly vacation rental with an average of 45-50 weeks per year of bookings. Keep it as a rental and it will pay for itself or bring your suitcase and move in immediately to start enjoying paradise! Key Lime Kottage features a huge 56' x 24' screened enclosure with a 20' x 12' private pool/hot tub combo and an outdoor dining/lounge area. The gunite pool is even equipped with a new heater and chiller. The large lot is surrounded by mangroves on each side for tons of privacy and has a composite swim dock for access and beautiful views of the Gulf of Mexico. The 2 level home itself features a 2 car garage with tons of storage, hardwood floors throughout the interior, and 3 bedrooms with 2 full baths on the upper level; all tastefully decorated and ready for you and/or your guests. The main level is great for entertaining with an open concept kitchen/dining/living room combo, all decorated with updated ''keysie'' decor and artwork. The kitchen features stainless steel appliances and a fully stocked inventory of all essentials that will convey. There is absolutely nothing you will need at this meticulously maintained home except yourself and your suitcase! Key Lime Kottage is conveniently located off US 1 south of MM 59. It is central to everything the Keys has to offer and close to Marathon for shopping, restaurants, marinas and more!

58773 Overseas Hwy, Marathon

$275,000

2 Beds ⋅ 1 Baths ⋅ 609536 MLS

Escape to your perfect weekend or winter getaway in the heart of Grassy Key, nestled within the serene oceanfront community of Lion's Lair. Step into relaxation as you enter this well-maintained mobile home, offering you the tranquility you crave at an affordable price. Imagine spending your mornings sipping coffee on the 299 sqft screened-in porch. Need extra space for your belongings? No worries! There's an 8X12 Suncrest shed for added storage. Lions Lair isn't just a place to live; it's a lifestyle. With low HOA fees of only $1500 per year, you gain access to amenities that elevate your experience. Take a leisurely stroll to the pool or embark on a boating adventure from the protected boat marina, recently renovated for your peace of mind with new pilings, composite decking, electrical outlets, and fresh water. After a day of seaside exploration, unwind by the pool, or seek shade under the Tiki Hut. At Lions Lair, it's a community where each owner holds a certificate of ownership. While you bask in the joys of coastal living, please note that Lion's Lair is a pet-free and rental-free community. Don't miss this opportunity to make Lion's Lair your coastal sanctuary - where every day feels like a vacation and the ocean is just steps away from your door. B&BATVAI

58950 Overseas Hwy Unit Lot 3, Marathon

$15,900

612992 MLS

You cannot build on this lot. This lot has been given 2 BPASS points. To use in the City of Marathon. This lot is environmentally sensitive. Unbuildable.

Lot 1 Cruton Ave, Marathon

$2,525,000

4 Beds ⋅ 2 Baths ⋅ 608708 MLS

Experience this serene paradise at this four-bedroom Marathon bayfront home on Grassy Key. Immerse yourself in coastal living with a private beach on the Florida Bay, stunning ocean views, a swimming pool, and a dock offering unparalleled access to the Florida Keys lifestyle. This fully furnished vacation rental is adorned with tropical decor, blending luxury with island charm. Step into the spacious living area, illuminated by soaring ceilings and natural light. The kitchen offers updated appliances and ample space for meal preparation, perfect for gatherings. Outdoor living takes center stage with an expansive outside area featuring a kitchen and living space, ideal for al fresco entertainment. A downstairs tackle/storage room caters to avid anglers, while the heated pool and chiller ensure year-round comfort. The dock has a step down section to launch kayaks, 27,000 lb boat lift, additional 40'+ dockage with cleats and bumpers, fish cleaning table, anglers chairs. With all impact doors and windows and a metal roof, this home provides durability and peace of mind. Recent additions include a primary suite with his and her closets and a private porch with pool access, newer air conditioning units. From sunrise to sunset, this outdoor oasis offers unforgettable moments amidst the natural beauty of the Florida Keys. Take your chance to make this tranquil slice of paradise your own. Schedule your private showing today and claim this exquisite Marathon residence for yourself.

86 Pelican Rd, Marathon

$169,000

609106 MLS

With the limited supply of available residential lots in the City of Marathon priced below $200k, this is a unique opportunity to not only purchase a lot that happens to be located on a private street in Grassy Key with a very rare neighborhood Boat Ramp, that you will have full access to along with a neighborhood. This lot is next to a community Waterfront Park. Being the last lot next to the Neighborhood park you can have water views from your upper floors or roof top deck. And no waiting at the busy public boat ramps, you have direct access to your neighborhood boat ramp, which will provide quick access to get your boat in Open Water. , Do not miss out on this opportunity. Included is a set of plans for a concrete home from a quality local builder. This lot is also listed as a complete build package including the Lot, TBR, TBR Transfer Fee & a New Construction Home to be built by the seller. Construction Financing up to 75% for qualified buyers available from Centennial Bank for the entire package. 101 Dorsett Dr is also available as just a lot, or also a complete build package.

144 Dorsett Dr, Marathon

$3,366,600

5 Beds ⋅ 5 Baths ⋅ 603647 MLS

SeaGlass Cove is a brand-new luxury, gated island community located in the heart of the Florida Keys adjacent to Duck Key. A rare find of just 14 new construction residences offering four and five-bedroom floor plans all with direct Atlantic Ocean views, a resort style pool, pickleball court, sandy beach, and the flexibility of a weekly rental. The first floor offers a private two car garage and covered cabana with spacious outdoor living space that leads out to the private beach and pool deck. The second floor features an open floor plan with spacious kitchen, dining and great rooms all overlooking the Atlantic Ocean. One en-suite bedroom on this floor provides seclusion for guests. On the top floor you'll find the primary suite with luxurious spa bath and the option of two or three additional guest bedrooms. The homes are finished with high end KitchenAid appliances, waterfall quartz countertops, full height backsplashes, custom closets and much more. Additionally, SeaGlass Cove offers select upgrade options including, elevator/lift, exterior spiral staircase, summer kitchen, custom millwork and Wolf/Sub-Zero appliances. SeaGlass Cove is barefoot luxury at its best.

59720 Overseas Highway Unit 3, Marathon

$1,090,000

3 Beds ⋅ 2 Baths ⋅ 617240 MLS

Tucked quietly on the edge of the Atlantic Ocean, this Marathon retreat feels like your own private escape by the sea. Built with solid concrete construction and featuring a rooftop deck designed to capture endless open-water views, this home was made to withstand the elements and embrace the Florida Keys lifestyle. Located within a desirable oceanfront community in Marathon, this property offers open water and marina views, covered parking, and ample storage for all your water toys — and your boat slip is only steps from your front door. Enjoy peaceful mornings from your screened-in porch overlooking the Atlantic, or head up to your rooftop deck for panoramic sunrise views and cool evening breezes. Inside, the home comes fully furnished with tasteful coastal décor, making it ideal as a primary residence, second home, or seasonal getaway. Bonus: this unit is approved for seasonal rentals (December through April) is already booked annually inquire for details offering built-in income potential to offset ownership expenses. It also includes a dedicated boat slip assigned to the property at no annual cost — a rare and valuable feature in the Keys. Community amenities include a pool, tiki hut, clubhouse, boat ramp, paved jetty path to open water, and boat trailer storage, all designed to make life on the water effortless and enjoyable. From here, you're just minutes from five local restaurants — ranging from fine dining to dockside favorites — and a short stroll from the Dolphin Research Center. Launch your boat, park in your slip, and be fishing within minutes. This is true Keys living — easy, durable, and drenched in ocean breeze.

58950 Overseas Highway Unit 13, Marathon

$3,366,600

5 Beds ⋅ 5 Baths ⋅ 603646 MLS

SeaGlass Cove is a brand-new luxury, gated island community located in the heart of the Florida Keys adjacent to Duck Key. A rare find of just 14 new construction residences offering four and five-bedroom floor plans all with direct Atlantic Ocean views, a resort style pool, pickleball court, sandy beach, and the flexibility of a weekly rental. The first floor offers a private two car garage and covered cabana with spacious outdoor living space that leads out to the private beach and pool deck. The second floor features an open floor plan with spacious kitchen, dining and great rooms all overlooking the Atlantic Ocean. One en-suite bedroom on this floor provides seclusion for guests. On the top floor you'll find the primary suite with luxurious spa bath and the option of two or three additional guest bedrooms. The homes are finished with high end KitchenAid appliances, waterfall quartz countertops, full height backsplashes, custom closets and much more. Additionally, SeaGlass Cove offers select upgrade options including, elevator/lift, exterior spiral staircase, summer kitchen, custom millwork and Wolf/Sub-Zero appliances. SeaGlass Cove is barefoot luxury at its best.

59720 Overseas Highway Unit 1, Marathon

$882,000

3 Beds ⋅ 2 Baths ⋅ 614980 MLS

Welcome to this just-completed 3 bedroom, 2 bathroom CBS home, perfectly situated on a private road in a quiet neighborhood with that classic Old Florida Keys charm. Built with durability and comfort in mind, this home features hurricane impact windows and doors, tile flooring throughout, an open-concept layout, quartz countertops, and stainless steel appliances. Enjoy views of the turquoise Gulf waters from your front porch and take advantage of the spacious 12,000 sq ft lot, ideal for parking an RV, outdoor living, or future outdoor additions. The neighborhood offers a private boat ramp, making it easy to get out on the water anytime. Located just minutes from the City of Marathon, you'll enjoy convenient access to shopping, dining, groceries, and a cozy coffee shop right down the street. Whether you're a local or looking for a family getaway, this brand-new home delivers style, privacy, and the best of Keys living.

135 Dorsett Dr, Marathon

$740,000

3 Beds ⋅ 2 Baths ⋅ 614147 MLS

Welcome to your private oasis on Grassy Key, where your closest neighbors are the dolphins! Just steps away, you'll find the S.S. Wreck & Galley Grill, Grassy Key Marina, a bait shop, and a grocery store—everything you need for the perfect island lifestyle. This 3-bedroom, 2-bathroom stilted home is the epitome of privacy, relaxation, and Florida Keys living. Designed for comfort and durability, this elevated home features impact windows and doors, a metal roof, and Hardie board siding, all updated in 2018. Inside, 1,548 sq. ft. of thoughtfully designed space awaits, with brand-new Lifeproof flooring throughout and an abundance of natural light. The kitchen is fully equipped with stainless steel appliances and a brand-new refrigerator, while the primary suite offers a spa-like retreat with a jacuzzi tub and double vanity. A versatile bonus room provides space for an office, play area, or creative nook. But the true magic happens outdoors! Step into a tropical escape featuring a custom heated & chilled concrete pool, six-person jacuzzi, and an expansive outdoor kitchen and bar—perfect for entertaining under the swaying palms. The MistAway mosquito control system ensures uninterrupted enjoyment of your private backyard oasis. Situated on an oversized, fully fenced lot, there's ample space for parking boats, trailers, and all your island toys. Beneath the home, additional storage provides a perfect place to stow gear for fishing, diving, or boating adventures. Enjoy unparalleled tranquility with the Dolphin Research Center bordering the property, guaranteeing no neighbors on two sides!

58885 Overseas Hwy, Marathon

$4,528,300

5 Beds ⋅ 5 Baths ⋅ 604812 MLS

SeaGlass Cove is a brand-new luxury, gated island community located in the heart of the Florida Keys adjacent to Duck Key. A rare find of just 14 new construction residences offering four and five-bedroom floor plans all with direct Atlantic Ocean views, a resort style pool, pickleball court, sandy beach, and the flexibility of a weekly rental. The first floor offers a private two car garage and covered cabana with spacious outdoor living space that leads out to the private beach and pool deck. The second floor features an open floor plan with spacious kitchen, dining and great rooms all overlooking the Atlantic Ocean. One en-suite bedroom on this floor provides seclusion for guests. On the top floor you'll find the primary suite with luxurious spa bath and the option of two or three additional guest bedrooms. The homes are finished with high end KitchenAid appliances, waterfall quartz countertops, full height backsplashes, custom closets and much more. Additionally, SeaGlass Cove offers select upgrade options including, elevator/lift, exterior spiral staircase, summer kitchen, custom millwork and Wolf/Sub-Zero appliances. SeaGlass Cove is barefoot luxury at its best.

59720 Overseas Highway Unit 14, Marathon

$3,568,000

5 Beds ⋅ 5 Baths ⋅ 609662 MLS

Weekly rentals permitted! SeaGlass Cove is a brand-new luxury, gated island community located in the heart of the Florida Keys adjacent to Duck Key. A rare find of just 14 new construction residences offering four and five-bedroom floor plans all with direct Atlantic Ocean views, a resort style pool, pickleball court, sandy beach, and the flexibility of a weekly rental. The first floor offers a private two car garage and covered cabana with spacious outdoor living space that leads out to the private beach and pool deck. The second floor features an open floor plan with spacious kitchen, dining and great rooms all overlooking the Atlantic Ocean. One en-suite bedroom on this floor provides seclusion for guests. On the top floor you'll find the primary suite with luxurious spa bath and the option of two or three additional guest bedrooms. The homes are finished with high end KitchenAid appliances, waterfall quartz countertops, full height backsplashes, custom closets and much more. Additionally, SeaGlass Cove offers select upgrade options including, elevator/lift, exterior spiral staircase, summer kitchen, custom millwork and Wolf/Sub-Zero appliances. SeaGlass Cove is barefoot luxury at its best.

59720 Overseas Highway Unit 12, Marathon

$7,000,000

618083 MLS

'United States Bankruptcy Auction. The Listing Price is for MLS Purposes only. Actual Price will be determined at Auction. The Auction will take place Live via Zoom on Thursday, September 10, 2026 at 11 AM ET. Bidder Registration Packages and Qualifying Deposits are due on or before Tuesday, September 8, 2026 at 5:00 PM ET. https://www.dropbox.com/scl/fo/6zvlde9vkafsi4gyurrge/AFbZzVpEx4s1umkeSKne1Us?rlkey=9ejdq1stq5w01ifjwsdhdrzyh&st=nzppom5j&dl=0 Rare oceanfront development opportunity in the heart of the Florida Keys. Encompassing nearly 6 acres of pristine oceanfront land in Grassy Key, this exceptional parcel presents an ideal canvas for developers seeking to create luxury residential units with direct oceanfront and beach access. Surrounded by unspoiled natural beauty and tranquil beaches, the property offers immediate proximity to shopping, fine dining, spas, marinas, and world-class boating. Residents will enjoy unparalleled access to deep-sea fishing, scuba diving, snorkeling, and vibrant coral reefs, all set against the backdrop of the Keys' iconic turquoise waters. Located in Marathon, often referred to as the Heart of the Florida Keys, the site benefits from a highly desirable central Keys location, conveniently positioned between the Upper Keysâ€'such as Islamoradaâ€'and the Lower Keys, including Key West. Marathon is known for its rich maritime history, local airport, and accessibility, serving as a central hub comprising islands such as Vaca Key, Duck Key, and Grassy Key. A truly rare offering combining scale, location, and oceanfront presenceâ€'an exceptional opportunity to develop a legacy project in one of Florida's most coveted coastal destinations. Please read the broker's remarks for detailed information on this offering.

57478 Overseas Highway, Marathon

$2,200,000

4 Beds ⋅ 5 Baths ⋅ 616356 MLS

Dreaming of your own beach house in the Keys? Welcome to Casa de la Playa in Grassy Key, where island living meets luxury. Set on over 1/2 acre, this 4bed/5bath retreat offers sweeping ocean views, a private sandy beach & resort-style pool just 5 min from Marathon airport. Inside, enjoy a bright open liv area, gourmet kitchen w/S.S. appliances & windows framing endless views. The 2nd-level veranda is perfect for sunrise coffee or sunset cocktails. Outdoors, relax by the pool or entertain with ocean breezes. Short-term rental approved, this home is both a private escape & smart investment. Recent upgrades include impact win/doors, Hardi Board siding & parking for cars/boats. Casa de la Playa is near world-class fishing, diving, dining & boating. A rare chance to own paradise in the FL Keys.

58618 Overseas Hwy, Marathon

$560,000

3 Beds ⋅ 2 Baths ⋅ 606862 MLS

Beautifully Updated 3-Bedroom Canal-Front Mobile Home in Marathon. Fully renovated 3-bedroom, 2-bathroom mobile home, boasting a generous living space of 1,447 sqft. Nestled on a sizable 6,162 sqft lot. Situated right on the canal, enjoy breathtaking water views right from the comfort of your home. Whether it's a morning coffee or an evening read, the tranquil waters promise a backdrop like no other. With 3 bedrooms and 2 bathrooms, the home is perfect for families, couples, investment property or anyone looking to enjoy spacious and modern living. Located in the heart of Marathon, everything you need is just a stone's throw away. From eateries to shopping centers, experience the convenience of urban living in a peaceful setting. Don't miss out on this unique opportunity to own a slice of paradise in Marathon. Whether it's a permanent residence, a vacation getaway, or an investment property, this mobile home is sure to impress!

59733 Paradise Pl, Marathon

$533,000

2 Beds ⋅ 2 Baths ⋅ 605212 MLS

Tropical Nature Paradise, Oversized Lot, Plenty room for RV, and Boat Trailers, less than 1 mile Sunset Bay Park , Oceanwater Sunrise, or Sunset views ,Bike trails 2 bedrooms , 2 full baths , large deck, New Roof should be done May 15th. Close to beaches,Restaraunts, shopping ,school

336 Orange Ave, Marathon

$3,000,000

5 Beds ⋅ 5 Baths ⋅ 617380 MLS

Weekly rentals permitted! SeaGlass Cove is a brand-new luxury, gated island community located in the heart of the Florida Keys adjacent to Duck Key. A rare find of just 14 new construction residences offering four and five-bedroom floor plans all with direct Atlantic Ocean views, a resort style pool, pickleball court, sandy beach, and the flexibility of a weekly rental. The first floor offers a private two car garage and covered cabana with spacious outdoor living space that leads out to the private beach and pool deck. The second floor features an open floor plan with spacious kitchen, dining and great rooms all overlooking the Atlantic Ocean. One en-suite bedroom on this floor provides seclusion for guests. On the top floor you'll find the primary suite with luxurious spa bath and the option of two or three additional guest bedrooms. The homes are finished with high end KitchenAid appliances, waterfall quartz countertops, full height backsplashes, custom closets and much more. Additionally, SeaGlass Cove offers select upgrade options including, elevator/lift, exterior spiral staircase, summer kitchen, custom millwork and Wolf/Sub-Zero appliances. SeaGlass Cove is barefoot luxury at its best.

59720 Overseas Highway Unit 11, Marathon

$850,000

3 Beds ⋅ 2 Baths ⋅ 618474 MLS

Wake up to breathtaking open water views and embrace the ultimate Florida Keys lifestyle in this oceanfront A-frame located in the private, highly sought-after Lion's Lair community in Marathon. Opportunities like this are rare--where exceptional amenities, privacy, and value come together in one stunning property. This well-built half duplex welcomes you with sweeping ocean views the moment you step inside, complemented by impact windows and doors for peace of mind. Offering 3 bedrooms, 2 baths, plus a versatile lofted office space, the home is designed for both comfort and flexibility. Step outside to your spacious waterfront deck--perfect for morning coffee at sunrise or unwinding with evening cocktails as the ocean breeze rolls in. The true highlight is the unmatched collection of community amenities: Enjoy a private marina with dockage for boats up to 25', a convenient boat ramp, boat trailer storage, a resort-style pool, tiki hut, clubhouse, and a scenic paved walkway leading to a tranquil jetty point--ideal for sunset strolls or simply soaking in the coastal beauty. Positioned in one of the most desirable and private locations within Lion's Lair, this home offers both seclusion and easy access to all amenities. With low association fees of just $1,500 per year and no rentals allowed, you'll enjoy a peaceful, owner-focused environment without the disruption of short-term vacation traffic. This is more than a home--it's a rare opportunity to own a piece of paradise in a premier waterfront setting. Schedule your private showing today.

58950 Overseas Highway Unit 48, Marathon

$3,500,000

5 Beds ⋅ 5 Baths ⋅ 607874 MLS

Weekly rentals permitted! SeaGlass Cove is a brand-new luxury, gated island community located in the heart of the Florida Keys adjacent to Duck Key. A rare find of just 14 new construction residences offering four and five-bedroom floor plans all with direct Atlantic Ocean views, a resort style pool, pickleball court, sandy beach, and the flexibility of a weekly rental. The first floor offers a private two car garage and covered cabana with spacious outdoor living space that leads out to the private beach and pool deck. The second floor features an open floor plan with spacious kitchen, dining and great rooms all overlooking the Atlantic Ocean. One en-suite bedroom on this floor provides seclusion for guests. On the top floor you'll find the primary suite with luxurious spa bath and the option of two or three additional guest bedrooms. The homes are finished with high end KitchenAid appliances, waterfall quartz countertops, full height backsplashes, custom closets and much more. Additionally, SeaGlass Cove offers select upgrade options including, elevator/lift, exterior spiral staircase, summer kitchen, custom millwork and Wolf/Sub-Zero appliances. SeaGlass Cove is barefoot luxury at its best.

59720 Overseas Highway Unit 13, Marathon

$715,000

3 Beds ⋅ 2 Baths ⋅ 612823 MLS

Enjoy complete privacy in this gated property on Grassy Key at the end of Cocoanut Ave. A true escape with manicured outdoor living areas, heated pool, large storage, screened porch, tropical landscaping, ample parking and RV hook-up parking. The elevated home offers 3 spacious bedrooms, 2 bathrooms, an open floor plan living area and screened porch overlooking the pool. The home is in excellent condition ready for you to move right in and start living your best Keys life. Call today for more information and schedule a private tour.

350 Cocoanut Ave, Marathon

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