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Middle Keys Homes for Sale, Single Family Houses, MLS Home Listings

Homes for sale in the Middle Keys include very popular pieces of real estate in the Florida Keys.  Located within the market are Middle Keys houses in highly sought after areas such as Marathon, Coco Plum, and Duck Key.  Middle Keys properties are within easy driving distance from a number of great restaurants and shopping locations, adding to their value.  View all houses for sale in the Middle Keys by browsing the Florida Keys MLS.

Total Listings 258
Order By:

$325,000
Marathon
Parrish Subdivision   - MM: 48.00
2 Bed, 2 Baths, 964 SqFt Days Listed: 115
-6.88% ($24,000) 1 Price Change : Last Change 2 Days Ago
Single Family - Active - Waterfront No
Side of Island: Ocean - Dockage: None

Fantastic Investor Opportunity or Employee Housing in this conch house in Marathon in need of a little TLC. Fenced in yard with room to park multiple vehicles. Home has 2 front entrances and a split floorplan, giving the home some unique possibilities. Waterview possible if a new stilted home is built on the lot in the future. Great opportunity for the right buyer, set up your showing today!

$399,000
Conch Key
Conch Key   - MM: 62.50
2 Bed, 2 Baths, 782 SqFt Days Listed: 202
-20.20% ($101,000) 6 Price Changes : Last Change 3 Days Ago
Mobile Home - Active - Waterfront No
Side of Island: Bay/Gulf - Dockage: None

Welcome to 24 N Conch Avenue, nestled in the serene area of Conch Key. This charming 2-bedroom, 1-bath home is enclosed by vinyl and chain link fencing, ensuring safety for children and pets. The concrete driveway provides ample space for your vehicles, boat, or trailer. Relax and enjoy stunning sunset views from the spacious open patio. For your storage needs, an on-site utility unit offers a secure space for all your tools and toys. Convenience is at your doorstep with a general store just across the street. Located north of Marathon and Duck Key, this home offers an easier drive to the mainland. Whether you keep it as a long-term rental or use it for weekly rentals, this property is a perfect investment opportunity. Schedule your showing today!

$449,000
Marathon
Little Venice   - MM: 53.00
1 Bed, 1 Baths, 584 SqFt Days Listed: 78
Single Family - Active - Waterfront No
Side of Island: Ocean - Dockage: None

Charming Conch House that has been fully updated with new roof, impact rated windows & doors, tankless water heater, updated electrical panel, and interior remodel with coastal finishes. This one bedroom & one bath home is affordable retreat for your winter getaway or full-time homestead. Backyard is fully fenced with outdoor spa included for your own tropical ossias. Located in the heart of Marathons Little Venice District. Property can also be used for weekly vacation rentals for cashflow.

$469,900
Marathon
Key Colony Subdivision   - MM: 53.00
1 Bed, 1 Baths, 690 SqFt Days Listed: 272
-6.02% ($30,100) 3 Price Changes : Last Change 2 Days Ago
Single Family - Active - Waterfront No
Side of Island: Bay/Gulf - Dockage: None

Fully remodeled 1/1 CBS home in the Florida Keys. Tile flooring throughout, SS appliances, washer/dryer, impact windows and doors, tankless water heater. Marathon allows rentals as little as 7 days. Fenced backyard with screened porch for privacy and entertainment, BBQ area and plenty of parking in front and on side of property with a pull through front and rear gate to facilitate boat and trailer parking. Close to shopping, restaurants and boat ramps. No Association. Come enjoy the Keys lifestyle!!

$499,000
Marathon
Misc Key Colony Beach   - MM: 53.00
2 Bed, 2 Baths, 1,040 SqFt Days Listed: 60
-14.70% ($86,000) 2 Price Changes : Last Change 2 Days Ago
Single Family - Active - Waterfront No
Side of Island: Bay/Gulf - Dockage: None

Step into the charm and character of Old Florida with this delightful 2-bedroom, 2-bath Keys cottage. Originally a duplex, this unique home has been thoughtfully combined by the owners to create a spacious and inviting single-family retreat. Nestled on an oversized lot, this property offers plenty of room to expand, garden, or simply enjoy the lush tropical surroundings.While the home retains its original charm, it presents a wonderful opportunity for personalization and updating to suit your style. Original Dade County pine ceilings and other unique Keys features.Enjoy the laid-back Keys lifestyle with ample outdoor space for entertaining or relaxing in the Tropics. Located in a quiet, established neighborhood, this property is just a short drive to local marinas, dining, and sandy beaches.Whether youre looking for a weekend getaway or a full-time island escape, this property offers the rare chance to own a piece of classic Florida Keys charm with room to grow. City of Marathon Market Rate Tranferable Building Right (TBR) is available with the property should buyer wish to purchase it.

$499,900
Marathon
Little Venice   - MM: 53.00
2 Bed, 2 Baths, 875 SqFt Days Listed: 60
Single Family - Active - Waterfront No
Side of Island: Ocean - Dockage: None

Original Keys Conch House! BUILT TO LAST! They dont make them like this anymore! Just think of all the history this adorable conch home has but with all the modern conveniences of a remodeled property with granite counter tops, full backsplash in kitchen and high impact windows! Central location with easy walking distance to restaurants, churches and shopping. Easy installation of fencing and landscaping will make it your own private sanctuary and give space for the kiddos and pets to play. This is a versatile property that would work great for the first time home buyer, investor, work force housing or the snow bird who wants a sunny Keys getaway! Easy to assume flood policy, a breeze to show. Get into your new Keys home today! Ask me about the City grant or Home Town Heros program that helps buyers get into their forever homes!

$515,000
Marathon
Sunset Bay   - MM: 56.00
2 Bed, 2 Baths, 874 SqFt Days Listed: 11
Half Duplex - Active - Waterfront No
Side of Island: Bay/Gulf - Dockage: None

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.

$539,900
Marathon
Little Venice   - MM: 53.00
2 Bed, 2 Baths, 832 SqFt Days Listed: 4
Single Family - Active - Waterfront No
Side of Island: Ocean - Dockage: None

What a lovely island escape! This updated and oh-so-charming Marathon bungalow is ideally located near everything that makes the Florida Keys magical--world-class diving and fishing, scenic kayak trails, pristine state parks, gorgeous beaches, and, of course, legendary tiki bars.Designed for easy living from Day 1, this solid concrete home features newer roof, windows, and AC units, plus a beautifully renovated kitchen and bath, a spa, and the convenience of onsite laundry. Fully furnished and completely turnkey, its an active vacation rental with glowing reviews--giving you the flexibility to enjoy it yourself or let it generate income effortlessly.Whether youre looking for a laid-back island retreat or a savvy investment, this low-maintenance property is ready to welcome you to island life!Buyer to verify all information.

$550,000
Marathon
Keys Rv/mobile Home Condomini   - MM: 50.50
2 Bed, 2 Baths, 480 SqFt Days Listed: 3
Single Family - Active - Waterfront Yes
Side of Island: Ocean - Dockage: 30ft.

Incredible opportunity to own a piece of paradise! This waterfront 2 bedroom 1 full bathroom is move in ready. Spacious kitchen with plenty of storage, open floor plan perfect for entertaining. Under house parking and plenty of room for kayaks, grilling, complete with a dock. Wonderful community with community boat ramp, several laundry rooms, oceanside picnic areas, club house, and pet friendly! Oceanfront pavilion where you can enjoy the ocean breeze or watch a sunrise! Perfect for a home away from home or year round living. Enjoy fishing, boating, kayaking, right in your back yard or a take a quick boat ride to the ocean! Newer a/c (2022), impact windows & door. Professional pictures coming soon!

$555,000
Marathon
Knights Key Village   - MM: 47.00
3 Bed, 3 Baths, 1,215 SqFt Days Listed: 126
-2.63% ($15,000) 1 Price Change : Last Change 2 Days Ago
Half Duplex - Active - Waterfront No
Side of Island: Ocean - Dockage: None

This 3 bedroom 2 bath stilt home with ocean views and views of the seven mile bridge. This 1/2 duplex is only attached by the deck there are no adjoining walls.

$555,000
Marathon
Puerta Del Sol   - MM: 50.50
3 Bed, 3 Baths, 1,040 SqFt Days Listed: 102
Single Family - Active - Waterfront No
Side of Island: Ocean - Dockage: None

Concrete 3 bedroom, 2 bathroom home with a great back yard, fully fenced and pet friendly. Newer metal roof.

$580,000
Key Colony
Key Colony Beach   - MM: 53.50
2 Bed, 2 Baths, 1,100 SqFt Days Listed: 83
-14.07% ($95,000) 2 Price Changes : Last Change 14 Days Ago
Half Duplex - Contingent - Waterfront No
Side of Island: Ocean - Dockage: None

Stilted half duplex, in excellent condition and well maintained, two bedrooms, two bathrooms right across the street from East End Park. Water views of Key Colony Channel from front porch. Owner Occupied, never been rented. Large down stairs storage room, off street parking and covered Carport parking. Across the street from East End Park. Walking distance to Cabana Club, Restaurants, Shopping, Par 3 Golf Course, Fishing and Dive Boats, Sunset Park. Great neighborhood...

$594,000
Marathon
Reimanns Subdivision   - MM: 51.00
4 Bed, 4 Baths, 1,575 SqFt Days Listed: 102
-8.47% ($55,000) 2 Price Changes : Last Change 2 Days Ago
Single Family - Active - Waterfront No
Side of Island: Ocean - Dockage: None

Seller will consider all offers! Dont miss this opportunity with a variety of potential uses. Currently this duplex has two units but the seller is retaining one of the building rights to sell the property as a single family home. 4 bedrooms, 3 bathrooms. This would make a great vacation rental with lots of room for parking and boat trailer storage.

$595,000
Marathon
Little Venice   - MM: 53.00
3 Bed, 3 Baths, 1,098 SqFt Days Listed: 40
-2.30% ($14,000) 1 Price Change : Last Change 2 Days Ago
Single Family - Active - Waterfront No
Side of Island: Ocean - Dockage: None

Located on a desirable CORNER LOT in Little Venice, Marathon, this beautifully updated 3-bedroom, 1-bathroom home is an excellent opportunity for a local family in the Middle Keys or anyone seeking a second home or investment property in the Florida Keys.The home has been extensively renovated, with all spalling work completed, offering peace of mind for years to come. A new asphalt shingle roof was installed in 2020, and a fully permitted 240 sq ft addition for a new bedroom and new HVAC split units ensure comfort all year long. The corner lot provides ample parking space and additional storage.Inside, the home has been freshly painted and features a combination of tile and vinyl flooring, offering a clean, modern feel. Windows have been recently upgraded, paired with accordion shutters, the home is filled with natural light, creating a bright, welcoming atmosphere throughout. This home is truly turn key, ready for its next owner!

$595,000
Marathon
Sunset Bay   - MM: 56.00
3 Bed, 3 Baths, 1,056 SqFt Days Listed: 488
-8.46% ($55,000) 2 Price Changes : Last Change 2 Days Ago
Single Family - Active - Waterfront No
Side of Island: Bay/Gulf - Dockage: None

Charm and Comfort in Grassy Key - Your Slice of Paradise Awaits! Discover the perfect blend of cozy living and Florida Keys flair with this delightful 3-bedroom, 2-bath haven situated in the serene Sunset Bay community at Mile Marker 56. With a total interior livable area of 1,056 sqft, this single-family residence provides a quaint and comfortable retreat. Enter inside to a space bathed in natural light, featuring cathedral ceilings and a sought-after split bedroom design for optimal privacy. The heart of the home is adorned with granite counters that offer a sleek and modern touch to the well-appointed kitchen. A dedicated laundry room adds to the convenience factor. Each of the three bedrooms is a sanctuary of peace, promising a restful nights sleep after a day of island adventures. The two full bathrooms are meticulously maintained, providing both comfort and function. Unwind on the patio, the ideal spot for sipping your morning coffee or hosting casual get-togethers. While this home isnt waterfront, youre never too far from the ocean or bay in Grassy Key, with ample opportunities to enjoy the water nearby. Rest easy with central heating and air ensuring your comfort year-round, and a durable metal roof overhead. Parking is a breeze thanks to a carport, with a lot size of 6,098 sqft, youll have just enough green space to enjoy without the upkeep of larger estates. Ready to make your Keys dream a reality?

$624,777
Marathon
Reimanns Subdivision   - MM: 51.00
2 Bed, 2 Baths, 768 SqFt Days Listed: 93
-3.73% ($24,223) 2 Price Changes : Last Change 3 Days Ago
Half Duplex - Active - Waterfront No
Side of Island: Ocean - Dockage: None

***PRICED TO SELL! Vacation rentals on the books! ***Come see this beautiful home with a PRIVATE POOL & HOT TUB before the next vacation rental checks in! With ocean views and a huge fully fenced yard(5438sf), this very well maintained, nautically themed half-duplex in the heart of Marathon would make a perfect island getaway, vacation rental or primary residence! Hot/Cold shower downstairs is perfect for overflow guests or rinsing off to enjoy the pool! Fruit producing banana, starfruit, mango, orange, cherry trees & coconut palms adorn the yard, which is perfect for entertaining! Airport and boat ramp close by! Best bang for your buck in Marathon! It is truly a MUST SEE! OPEN HOUSE THIS SAT 2/22 from 11-1 or call now for private showing!

$625,000
Marathon
Crains Subdivision   - MM: 58.00
2 Bed, 2 Baths, 864 SqFt Days Listed: 13
Single Family - Active - Waterfront No
Side of Island: Bay/Gulf - Dockage: None

PRIVATE, ELEVATED/ABOVE FLOOD, AND SURROUNDED BY NATURE--YOUR PARADISE AWAITS!Tucked away at the end of a quiet street in Grassy Key, this elevated home offers privacy, tranquility, and a breathtaking natural backdrop with protected conservation land surrounding you. Just minutes from Marathon, youll love the peaceful sounds of nature while still being close to all the BEST shops and restaurants in the Middle Keys.Situated on a spacious 7,500 sq. ft. lot, this 2-bedroom, 2-bathroom home boasts a METAL roof (installed in 2018) and a freshly updated driveway with new rock & mulch beds. Theres ample space for multiple vehicles, as well as boats, trailers, or even an RV. Covered parking beneath the home adds extra convenience along with a separate enclosed storage area.Ascend the staircase and take in the open side patio, perfect for enjoying the sunshine & island breezes. The expansive enclosed front porch, accessible from the side patio, living room and kitchen areas, provides the perfect spot to relax & unwind ALL YEAR long.Inside, the spacious living room seamlessly flows into the well-appointed kitchen, which features ample cabinetry, generous counter space, a GAS range and sliding doors that open to the patio--perfect for indoor-outdoor living. The OPEN CONCEPT design leads to a hallway that connects the guest and main bedroom areas, creating a natural flow & separation throughout the home.Recent updates include new light and fan fixtures in the bedrooms & living area, as well as freshly painted rooms throughout. The flooring has also been updated, with brand-new carpet in the guest bedroom and stylish wood plank vinyl flooring in the living and kitchen areas.Just a short walk away, youll find Sunset Bay Park, a scenic waterfront community park known for its vibrant wildlife and easy access to nearby bike trails.This peaceful & natural retreat is the paradise youve been searching for--schedule your showing today, before its too late.

$630,000
Marathon
Little Venice   - MM: 53.00
3 Bed, 3 Baths, 1,040 SqFt Days Listed: 129
-9.87% ($69,000) 3 Price Changes : Last Change 2 Days Ago
Single Family - Active - Waterfront No
Side of Island: Ocean - Dockage: None

Great location in Marathon! Enjoy a short stroll to nearby restaurants, shops, fishing, attractions, water views, and more!! Imagine waking up to the sound of seagulls and owning a Florida Keys stilted Category 5 rated modular home built in 2015 in the Little Venice Subdivison ! This 3 bedroom, 2 bath home features Hurricane Impact Windows and Doors, Metal newer roof, Hardiboard siding, Stainless appliances, completely tiled interior, granite counters, and more! The columns are stucco, there are pavers underneath, and a 13 x 4 covered porch off of the kitchen This is the perfect opportunity to own a vacation retreat, investment opportunity, or primary residence. The completely fenced yard offers covered parking for up to 4 vehicles, and wonderful outside living space. Dont miss out on making this beautiful Florida Keys house your new home, and begin enjoying the Florida Keys Lifestyle!!

$635,000
Marathon
Harbor Isle   - MM: 48.50
3 Bed, 3 Baths, 1,040 SqFt Days Listed: 145
-2.31% ($15,000) 1 Price Change : Last Change 31 Days Ago
Single Family - Active - Waterfront No
Side of Island: Ocean - Dockage: None

Welcome to this charming 3-bedroom, 2-bathroom home nestled in the heart of Marathon, offering a nice location with beautiful views of Boot Key Harbor. The open-concept living area offers plentiful natural lighting, highlighting the tile flooring that runs throughout the home. The kitchen features dark wood cabinets, granite countertops, and stainless steel appliances.Step outside to an inviting open patio, perfect for relaxing or entertaining. With its close proximity to local restaurants, schools, and shopping, this home provides the perfect blend of comfort, style, and convenience. Dont miss the opportunity to make this exceptional property yours!

$649,000
Marathon
Sombrero Subdivision   - MM: 49.50
3 Bed, 3 Baths, 1,451 SqFt Days Listed: 137
-3.42% ($23,000) 1 Price Change : Last Change 2 Days Ago
Single Family - Active - Waterfront No
Side of Island: Ocean - Dockage: None

**Below Appraised Value** This impeccably remodeled 3/2 home is waiting for you in the Florida Keys! Solid concrete block construction with impact windows & doors. 1-car garage. Gourmet kitchen featuring custom cabinetry, farm sink, quartz countertops, and a pot filler above the induction range. All the energy saving conveniences of LED lighting with dimmers, surround sound, tankless water heater, and top of the line washer & dryer. Thoughtfully designed with an en-suite bedroom that could become separate living quarters with its own laundry hook-up. Beautiful garden area for entertaining outdoors. Plenty of parking with space for your boat and trailer. Boat Ramp less than 1/2 mile away! Come and see this delightful home convenient to all the exciting adventures that Marathon offers. No HOA! Owner Agent.

The information being provided by the Florida Keys MLS is exclusively for consumers' personal, non-commercial use, and it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed accurate by the MLS. Data last updated on 02-24-2025.
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