Browse All Sunset Bay (56) Properties for Sale

Are you ready to build? Skip the multi-year BPAS waitlist and start construction of your Florida Keys dream home on Day 1! This shovel-ready, 6,000 sq ft Grassy Key lot comes with a fully active City of Marathon building permit, local contractor, and ready-to-go blueprints for a stunning 1,500 sq ft, 4-bedroom primary residence. With the plans already approved at the state and city level. Begin breaking ground immediately upon closing. The seller has completely taken stress out of starting the building process-spending over $45,000 to deliver a cleared site complete with a construction driveway, mandatory safety fence, temporary electric pole, and surveyed corners. The plans are updated to the latest strict building codes, your builder can mobilize immediately while allowing you to fully customize the interior finishes to your exact taste. Well above the base flood elevation for optimal safety and insurance savings, this home plan is designed to capture breathtaking water views from a massive 23-foot outdoor deck. The luxury primary suite serves as a private oasis, boasting a standalone soaking tub positioned perfectly against a dedicated viewing window with glimpses of the water, alongside a separate walk-in shower. Engineered for the ultimate coastal lifestyle, the specifications feature a premium metal roof, ultra-durable HardieBacker siding, and high-efficiency green additions-including an integrated cistern for rainwater collection and an innovative AC heat-recirculator for the water heater. If you are a local resident, down-sizer, or professional looking to establish your primary homestead in the Keys without the years of bureaucratic delays, this turnkey property offers an unmatched head start. Ideally located just moments from Sunset Bay Park, where you can launch a kayak, enjoy breathtaking nightly sunsets, and watch local marine life glide through the clear waters. Embrace the true Keys lifestyle. Seller is a licensed real estate agent.

57529 Bailey St, Marathon

$629,000

3 Beds ⋅ 2 Baths ⋅ 620869 MLS

Tucked away in a peaceful Grassy Key setting, this stilted three-bedroom, two-bath home offers the space, storage and relaxed island lifestyle so many buyers are looking for. The bright, open living and dining areas flow into a cheerful kitchen with white cabinetry, stainless-steel appliances and generous counter space, while an enclosed sunroom provides additional flexibility for relaxing, hobbies or a home office. Step outside to enjoy the long front porch overlooking the natural habitat across the street--a serene backdrop for morning coffee, evening breezes and watching local wildlife. The spacious, tropically landscaped lot offers plenty of room for outdoor enjoyment, including a gravel yard, fire-pit area and minimal through traffic for peaceful walks and bike rides. Beneath the home, you'll find expansive covered multi-car parking, additional storage and plenty of usable space for gatherings, projects and island gear. The property also features a separate tool shed/workshop, dedicated golf cart parking, RV parking with hookups and a durable metal roof. Whether you're searching for a full-time residence, winter retreat or easygoing Florida Keys getaway, this Grassy Key home delivers comfort, functionality and a quiet connection to nature.

57473 Goodley St, Marathon

$499,000

3 Beds ⋅ 1 Baths ⋅ 620215 MLS

Welcome to 213 Parrish Dr. on Grassy Key, FL. This 3 bedroom, 1 bath home is ready for you to make it home and it's priced for you bring your own upgrades and personality. All doors and windows have been upgraded to impact resistant, the living area is a generous open floor plan with large island style kitchen, extra large covered back porch, a huge workshop space underneath the house and the yard is fenced. So, bring your tools and your DIY imagination to make this Keys home shine. Call today for more information and to schedule a private viewing.

213 Parrish Dr, Marathon

$565,000

3 Beds ⋅ 1 Baths ⋅ 610919 MLS

Welcome to your affordable Keys Cottage on a charming corner lot, complete with two driveways to accommodate all your vehicles and toys! This well-loved and meticulously maintained home is move-in ready, offering a seamless blend of comfort and style. The open living, dining, and kitchen areas feature luxury vinyl plank floors, creating a modern yet cozy atmosphere. Step outside to the inviting deck, equipped with a sailshade for relaxing mornings with a coffee or afternoons enjoying an adult beverage. New metal roof 4-24 & New A/C 6-23. With three spacious bedrooms, this home is perfect for hosting the many guests who will be eager to visit you in paradise. Additional storage is provided by an 8 x 16 Lark shed in the large, flat yard, ensuring you have ample space for all your belongings. Ideally situated just a short walk from Sunset Bay Park, you'll have easy access to launch your kayak or paddleboard, or simply enjoy the stunning sunsets and local wildlife, including songbirds, white crown pigeons, hawks, vultures, osprey, woodpeckers, mockingbirds, cardinals, and hummingbirds. Welcome home to Sunset Bay on Grassy Key, where your slice of paradise awaits!

57547 Gibson St, Marathon

$580,000

3 Beds ⋅ 2 Baths ⋅ 618720 MLS

Discover the perfect blend of comfort and convenience in this well maintained 3-bedroom, 2-bath single-family home. Nestled in a quiet, family-friendly neighborhood of Sunset Bay in Grassy Key, this property offers a warm sense of community while keeping everyday essentials close at hand. An open, light-filled living room creates an inviting space for gatherings, movie nights, or simply relaxing at home. A private backyard offers room to play, garden, or entertain, with space to customize to your lifestyle. New Metal roof and air conditioner installed in 2018.

57453 Goodley St, Marathon

$600,000

3 Beds ⋅ 2 Baths ⋅ 614127 MLS

Welcome home to this gently used and meticulously maintained home in Sunset Bay on Grassy Key. Lucky for you, your impact windows and doors (2019) and your metal roof have already been installed. Enjoy relaxing on the generous, covered front porch enjoy natures' bounty of birds and wildlife on the lake/salt pond. This stilted GEM has 3 bedrooms for you and your family to enjoy home in the Keys. The primary suite has private deck and nice walk-in closet. The larger guest bedroom also has walk-in closet with build-ins for extra storage. TONS of parking for multiple vehicles, RV, Boat / Jetski trailer and more. Located in Sunset Bay, a wonderful, friendly community and only a brief 3 block walk takes you to Sunset Bay Park, where friends and neighbors enjoy the nightly sunsets and fishing or just relaxing on the community dock. Now, is the time to come Home to 220 Kyle in Sunset Bay on Grassy Key!

220 Kyle Ave, Marathon

$550,000

3 Beds ⋅ 2 Baths ⋅ 608140 MLS

Grassy Key home constructed in 2018 located on a 6,000 sf lot in the quiet area of Sunset Bay. Three bedroom, 2 bath stilted, concrete home offers tall ceilings, doors and windows to let in the natural light. Nicely appointed kitchen with quartz counter tops, stainless appliances and subway tile back splash. Upgraded tile in both bathrooms. Split bedroom floor plan for extra privacy. Screened front porch area for added living area and also convenient back balcony off the master bedroom. Conforming, vented storage area on the lower level is a bonus adjoining the covered parking for 4 vehicles. Both side yards offer ample space for additional parking or boat trailer storage. At the end of Kyle Street, just two streets over is the waterfront Sunset Bay Park park for your evening strolls to view sunset or afternoon enjoyment with kayaks and paddleboards. This home offers a blend of modern construction, practical features, and a convenient location near Sunset Bay Park and downtown Marathon just 5 miles away. The impact-resistant elements and storage space add to the overall appeal.

57423 Goodley St, Marathon

$599,000

2 Beds ⋅ 2 Baths ⋅ 605863 MLS

Live on Grassy Key in the Florida Keys and be a minute to the Gulf of Mexico for kayaking, canoeing, boating and fishing. This desirable home is privately situated amongst other attractive houses with no HOA and walking distance to Sunset Bay Park. Metal roof (2009), impact glass windows, tankless water heater, Hardi-board exterior with fresh paint. (Tax rolls show an effective of 2003). The inside is charming with a spacious living boasting wood ceilings and opens up to the dining area and kitchen. Bathrooms and kitchen have had some updating and show well. Plenty of room for the RV, boat, trailer and other toys. Fantastic outdoor kitchen, hot tub, gazebo and bar for entertaining. This is a must see!

57487 Bailey St, Marathon

$550,000

3 Beds ⋅ 2 Baths ⋅ 618661 MLS

Above flood and full of character, this three-bedroom, two-bath residence in the peaceful Sunset Bay neighborhood of Grassy Key delivers comfort, efficiency, and long-term value in one of the Middle Keys' most desirable settings. With 1,056 square feet of interior living space, the layout feels bright and open thanks to soaring cathedral ceilings and abundant natural light, while the split-bedroom design provides privacy for owners and guests alike. The kitchen features granite countertops and ample cabinetry, offering a clean, modern feel that works beautifully for everyday living or visiting guests. A dedicated laundry room adds convenience, and each bedroom provides a welcoming retreat after a day spent enjoying the island lifestyle. Both bathrooms are well maintained and designed for easy function. Step outside to a private patio that's perfect for morning coffee, evening cocktails, or relaxed entertaining. The 6,098-square-foot lot offers just the right amount of outdoor space without the burden of heavy maintenance. Covered parking under the carport, central air conditioning, and a durable metal roof all contribute to easy ownership and peace of mind. Location is another standout feature. The waterfront park in Marathon is only a block away, giving you quick access to open water, kayak launches, picnic areas, and places to enjoy the famous Keys sunsets. Even without being directly on the water, ocean and bay adventures are always within reach. For investors, the highly desirable 7-day rental status opens the door to excellent income potential. Owners can enjoy the home when they choose and generate revenue while away, making this a flexible asset as well as a personal retreat. Whether you are looking for a full-time residence, seasonal getaway, or a property that can help pay for itself, this opportunity delivers the best of lifestyle and return.

57485 Gibson St, Marathon

$475,000

2 Beds ⋅ 1 Baths ⋅ 613694 MLS

Quiet comfort and lush greenery surround you in this home. A brick paver driveway leads you to this 2 bed/1 bath remodeled beauty with granite counters, stainless appliances, updated bath, fenced back yard with a dip pool and deck. New roof in 2020, and new shutters in 2024. Walk one block to breathtaking sunsets at the neighborhood park, or hop on your bike and take a ride on the trail just up street. This is what island living is all about.

57528 Bailey St, Marathon

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Sunset Bay (56) Real Estate & Homes

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