Vacant lot in the Key By the Sea community offering an ideal private storage opportunity, especially for a neighboring property owner seeking additional space for trailers, RVs, or boats on a trailer. Living in an RV on this parcel is not permitted.Lot 108W measures approximately 31 feet in depth by 30.5 feet in width and is currently undeveloped with no structure in place. A Buyer may pursue a building right through the City of Marathon or acquire one privately in order to construct or place a code compliant structure in accordance with local regulations.Utilities including city sewer, water, and electric service are available within the community, and there are no impact fees related to prior utility installation.Key By the Sea offers convenient amenities including a boat ramp with direct Atlantic Ocean access, laundry facilities, a clubhouse, and pet friendly policies. Each parcel is individually owned with its own real estate number, and the monthly association fee is approximately $191.A rare and affordable opportunity to secure flexible use property in the Florida Keys, whether for private storage today or future building potential.
Huge Oceanfront Lot on Overseas Highway. Buildable per City of Marathon and Biologist. Drawings ready to submit to DEP and ACOE. Zone MU allows for multiple uses. Owner/Agent willing to owner finance with short term balloon mortgage and large down payment. GREAT LONG TERM INVESTMENT!
An exceptional opportunity to build in one of Marathon's most desirable neighborhoods. 1163 Camino Del Vientos is currently the only available lot in Sombrero, an area where properties rarely come to market. Even more compelling, this parcel holds the #4 position on the permit list, offering a valuable advantage for future development.Located just approximately four blocks from Sombrero Beach, the property provides the ideal blend of island lifestyle and convenience, with the shoreline easily accessible by foot or bike. Whether you envision a primary residence, vacation retreat, or investment property, this lot offers outstanding potential in the heart of the Florida Keys.Plans are available upon request, allowing buyers to move forward with confidence and clarity. Secure your place in Sombrero before the seasonal demand increases--opportunities like this are limited, and this property is well-positioned for both enjoyment and long-term value. Buy now before the summer rush. This lot will not last.
Looking to find an inexpensive way to enjoy the relaxed, Florida Keys living? Take a look at this well-maintained 2004 Skyline 39' trailer located on a leased lot in a quiet 55+ community in Marathon, Florida. This cozy home offers two bedrooms and one bathroom with a shower, making it ideal for full-time living or a seasonal retreat. The interior features a functional floor plan with comfortable living space, natural light, and easy-care finishes. The kitchen and living areas are efficient and inviting, perfect for simple island living. Bedrooms are thoughtfully sized to maximize comfort and storage. A screened in patio and outdoor area for simple entertaining and outdoor delight. Conveniently located near shopping, dining, beaches, and all the Florida Keys have to offer. A great opportunity for affordable Keys living in an age-restricted community. Lease details: No real estate to convey. Annual land lease is paid in January, currently approximately $1,200 per month (subject to change). Buyer to pay prorated balance at closing. New owner approval is required and includes passing a background check. Community amenities include access to a coin-operated laundry facility. No rentals allowed and buyer responsible for registration with Monroe County. Buyer to verify Galway Bay community rules and regulations to satisfaction.
Premium Waterfront Lot includes a building right/TBR - READY TO BUILD no waiting, INCLUDES 2 SETS OF HOUSE PLANS, The VACANT LAND PRICE is 679,000. Alternatively, you can choose to have the Seller coordinate the New Construction Project already planned to begin in 2026 at a completed price of 2,795,000. Breathtaking Views with Deep Water Protected 50 Ft Dockage! Discover your dream home in Marathon, Florida, offering 3,200 sq. ft. of luxurious living space. This 5-bedroom, 5-bathroom masterpiece features a private pool, elevator, and a stunning rooftop observation deck-perfect for enjoying epic sunsets over Boot Key Harbor. Work with Keys Dream Properties to customize your finishes, including interior and exterior colors, tile, quartz countertops, lighting, and plumbing fixtures. Tailor every detail to your taste and make this house truly your own. Located in the heart of Marathon, you'll enjoy easy access to endless shopping and dining options, from fine dining to casual eats. With a protected deep-water dock, you're minutes from both the Atlantic and Gulf, offering World-Class Fishing, Snorkeling-Diving, and Boating adventures. For those breezy days, Boot Key Harbor provides calm waters for social boating, complete with on-the-water dining and cocktails. Best of all, there are NO HOA FEES, and the property allows 7-day rentals, giving you the flexibility to offset your investment through vacation rentals in Marathon's thriving market. This home's combination of luxury, customization, and location offers the best of the Florida Keys Lifestyle. Construction scheduled to begin in 2026. Don't miss this rare opportunity to design and own your slice of paradise. Contact us today!
Build Now in the Heart of the Florida Keys! Opportunities like this don't last. This prime, cleared, buildable lot in Marathon offers the rare advantage of a Market Rate Building Allocation that conveys with the property, allowing you to skip the wait and start building immediately--a major value in today's Keys market.Located within a desirable waterfront community, this lot is your blank canvas for a custom coastal retreat. A two-story build may capture beautiful ocean views, adding even more appeal to an already exceptional setting.Enjoy direct Atlantic Ocean access with community dockage, a private boat ramp, and convenient trailer parking, making it effortless to get out on the water for boating, fishing, or island hopping. Community amenities also include a clubhouse and recreation hall, oceanfront pavilion with picnic areas, and well-maintained common spaces designed for relaxed island living.Whether you're planning a full-time residence, vacation home, or investment property, this lot delivers location, lifestyle, and immediacy--three things rarely found together in the Florida Keys.Hot property. Build-ready. Ocean access. Secure your piece of paradise before it's gone.
A rare opportunity to own over an acre of private Gulf-front land on beautiful Grassy Key. This lush, wooded parcel features approx. 140 ft. of open-water frontage framing breathtaking sunset panoramas across the Gulf of Mexico. Enjoy immediate access to some of the Florida Keys' most renowned reefs for fishing, diving, and snorkeling.
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 Keys—such as Islamorada—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 presence—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.
A rare opportunity to own over an acre of private Gulf-front land on beautiful Grassy Key. This lush, wooded parcel features approx. 140 ft. of open-water frontage framing breathtaking sunset panoramas across the Gulf of Mexico. Enjoy immediate access to some of the Florida Keys' most renowned reefs for fishing, diving, and snorkeling.
An incredible opportunity awaits to create your own direct open water Gulfside dream home on this spacious 38,333 square foot buildable lot in the exclusive, gated community of Stirrup Key in Marathon. This private enclave is one of the Middle Keys' most desirable addresses, known for its large estate lots, stunning open-water views, and secure, peaceful setting. Enjoy over 300 feet of pristine shoreline with endless panoramic Gulf vistas and some of the most spectacular sunsets in the Florida Keys. Two protected boat basin lots are also included, providing safe and convenient dockage for your boats just steps away. Stirrup Key is a luxury waterfront community offering privacy, serenity, and direct access to world-class boating and fishing. Residents appreciate its beautifully maintained streets, tropical landscaping, and proximity to Marathon's restaurants, marinas, and the private airport; all while feeling worlds away in a gated Gulfside sanctuary. Build your vision here and experience the rare combination of space, seclusion, and open-water beauty that defines the best of Florida Keys living. This lot does not include a TBR, but many are available separately for purchase!
SELLER WILLING TO FINANCE. Are you searching for a quiet, safe, and affordable place to park your RV or dreaming of building a cozy cottage near the ocean, with OPEN WATER views just steps away? Look no further than this clean and cleared 30' x 50' lot in Trailer Ranch By The Sea. Lot #34 is located just a few spaces from the oceanfront community park/beach & observation/fishing dock, offering the perfect spot to relax, unwind, and enjoy the beauty of the Keys. Move right into your new seaside escape and experience some of the most affordable living in the Florida Keys, peaceful, private, and centrally located in the heart of Marathon with easy access to the best restaurants, shopping, and activities. This Co-Op community consists of 47 shares, with each owner holding one share. The vacant lot can be used for an RV or to build a stilted mobile home and is ROGO EXEMPT with one right to build. TAXES ARE INCLUDED in the incredibly LOW ANNUAL HOA FEE of just $1,500. No rentals are allowed, preserving the quiet, intimate feel of the neighborhood, though owners may allow friends or family to stay up to 28 days. A separate trailer parking and storage area is also available for residents. Ready for cash offers, this is a rare opportunity, there's truly nothing more affordable in the beautiful Florida Keys. RV is not included.
Presenting 77 S Conch Key, a 4500 SF parcel in the heart of the Florida Keys with two transferable ROGO allocations, each valued at approximately $149,000. This property offers exceptional development potential with ROGO plans approved to build up to four units, providing an ideal foundation for a custom retreat or investment opportunity. While the lot does not offer water access, its location within the exclusive Conch Key community combines privacy, convenience, and significant value through its build rights and proximity to Marathon’s marinas, dining, and amenities.
93 N Conch Key features a brand-new seawall and approved building plans, saving valuable time and expense for your next project. Enjoy direct access to the turquoise waters of the Keys, world-class fishing, and a serene island lifestyle in one of the most desirable and private locations along the Overseas Highway. Whether you’re an investor or end user, this is a unique opportunity to create your vision in an established and sought-after enclave. Prime Waterfront with pristine views Lot is +/-5000 Sq Ft Plans approved for 93 N Conch Key with New Dock and Seawall - Potential for 4-Units.
Lot & 2 Market Rate Building Rights. Determination Letter in Documents. All Offers Considered. Centrally located in Marathon, FL. Multi-Family, Zoned RH-Residential High. Lot size 75x120 or 9,000 sf. Rent the current building until ready to build. Price is based on a buildable duplex lot with 2 market-rate building rights. Live in one side and rent the other side (use income to qualify the loan). Another great option is to build a single-family home and move the second building right to another location or sell it (current value approx. $180k each). 2 bedrooms and 2 baths on the left side, and 2 bedrooms and 1 bath on the right side. Lots of room to park cars, and a boat or RV. Walking distance to dining and shopping.
Excellent opportunity to build your dream home in the Florida Keys. This vacant lot on 122nd Street Gulf includes one Transferable Building Right (TBR), offering exceptional value and flexibility for future development. The lot measures approximately 52.5 feet wide by 60 feet deep and is located directly across from Martin Luther Church. Enjoy open-water views from future construction and convenient access to marinas, dining, and shopping. This is the lowest-priced lot with a TBR currently available in the City of Marathon, making it an outstanding investment or build opportunity in the heart of the Florida Keys.
Vacant Bay Side Lot with Dock Slip - Marathon, FL Build your dream home inthe heart of the Florida Keys! This vacant lot on the bay side offers a rare opportunity to create your owntropical retreat. Enjoy direct access to the water with an assigned boat dock slip--perfect for boating,fishing, and soaking in stunning Keys sunsets. Located in a desirable Marathon community, this propertycombines convenience with the unmatched beauty of island living. Whether you're planning a full-timeresidence, vacation home, or investment property, this lot provides the perfect foundation for your vision.
Vacant Bay Side Lot with Dock Slip - Marathon, FLBuild your dream home in the heart of the Florida Keys! This vacant lot on the bay side offers a rare opportunity to create your own tropical retreat. Enjoy direct access to the water with an assigned boat dock slip--perfect for boating, fishing, and soaking in stunning Keys sunsets.Located in a desirable Marathon community, this property combines convenience with the unmatched beauty of island living. Whether you're planning a full-time residence, vacation home, or investment property, this lot provides the perfect foundation for your vision.
LAST PRICE DROP BEFORE MONROE COUNTY PURCHASES THIS LOT FOR CONSERVATION. Quiet Neighborhood in Grassy Key with utilities at the road. Buy this lot now for a great investment once the building permits resume issuance at a normal rate. It is believed to be unbuildable and price has been reduced to reflect this. Take advantage of this lull in the market and reserve your dream at a fraction of the price. Property is being sold by special warranty deed without title insurance.
Build your dream home on this exceptional 11,600 sq. ft. bayfront lot in the prestigious, gated community of Stirrup Key. Offering open water views, this parcel provides the perfect canvas for a custom residence designed to capture the beauty of the Florida Keys lifestyle.With ample space for your ideal floor plan, this deed-restricted community ensures a neighborhood of high-quality homes while maintaining privacy and exclusivity. Located within the City of Marathon, Stirrup Key combines upscale living with convenient access to world-class fishing, boating, dining, and the best of the Keys.Don't miss this rare opportunity to create your own waterfront paradise in one of Marathon's most desirable enclaves.
Calle Limon, Lot 25 is located in the wonderful community that's within walking distance to the beautiful and popular Sombrero Beach. Perfect spot for your family's dream home close to restaurants, schools, hospital, shopping, recreation, water sports and so much more. Seller will consider all reasonable offers.
This rare 9-acre waterfront parcel is located on secluded Boot Key, a largely undeveloped island within the city limits of Marathon in the heart of the Florida Keys. Accessible only by boat since the drawbridge connection to Vaca Key was removed in 2010, the property offers privacy, natural beauty, and exceptional potential. Zoned mixed use, it includes 25 existing docks, a building and radio towers from a former local radio station, and portions of the land currently leased to fishermen. There are no active utilities on site, making it a true blank canvas for future development or a private retreat. With motivated ownership and flexible possibilities, this is a unique opportunity to secure a piece of the Florida Keys.
Large lot with building right and protected boat basin with deed, deep water, doc, quick access to the Ocean and Gulf. Open water views will be had in three directions. Gated community with no transient rentals around it. Privacy in exclusivity can be found here.
Unlock the full potential of the Florida Keys commercial market with this offering of a rare combined set of parcels including Lot 2 & Lot 3 on Overseas Highway, and an additional parcel of ~3.0 acres of submerged bay bottom located in the heart of Marathon. These adjacent parcels and bay bottom present a unique opportunity for developers, investors, or end-users seeking high-traffic frontage, open-water access, and bay bottom rights. Property is zone Mixed Use Commercial (MU-C). Currently has two concrete dwellings on-site with 3 building rights, deep water access, and dockage. Direct open water with panoramic views and potential for dock development, boating, or a water sport business. Ideal for possible hotel/motel, retail, restaurant, marina, or mixed-use commercial ventures (subject to city approval). High visibility corridor daily on US-1/Overseas Highway. Benefit from strong foot traffic and year-round visitors. Ownership of the bay bottom opens unique possibilities for water-related commercial activity. Rare opportunity to acquire two contiguous parcels with waterfront, bay bottom rights, four dwelling rights and highway presence. Whether you're envisioning a boutique resort, a landmark restaurant on the water, or a marine-focused business, this combined site offers everything you need - land, location, and lifestyle.
Unbuildable Lot in Marathon - No Development Rights. This parcel has no ROGO points and cannot be developed. Ideal for conservation, mitigation banking, or long-term investment. No utilities or access to permits. Sold as-is. Cash only. Buyer to verify all information with Monroe County.
Courtesy: LPT Realty, LLC
877-366-2213
Unbuildable Lot in Marathon - No Development Rights.This parcel has no ROGO points and cannot be developed. Ideal for conservation, mitigation banking, or long-term investment. No utilities or access to permits. Sold as-is. Cash only. Buyer to verify all information with Monroe County.
The data relating to the real estate for sale on this web site comes in part from the Internet Data Exchange Program of the Florida Keys Board of Realtors® Florida Keys MLS, Inc. Real Estate listings held by brokerage firms other than the owner of this site are marked with the MLS logo and detailed information about them includes the name of the listing broker's office. Information is provided exclusively for consumers’ personal, non-commercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, and that data is deemed reliable but is not guaranteed accurate.
The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Use of search facilities of data on the site, other than a consumer looking to purchase real estate, is prohibited. © 2026 MIAMI Association of REALTORS®, all rights reserved.
All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright © 2026 BeachesMLS, Inc.
All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright © 2026 BeachesMLS, Inc.
Marathon is located in Florida. Marathon, Florida has a population of 9,622. Marathon is more family-centric than the surrounding county with 21.39% of the households containing married families with children. The county average for households married with children is 20.65%.
The median household income in Marathon, Florida is $63,375. The median household income for the surrounding county is $73,153 compared to the national median of $69,021. The median age of people living in Marathon is 48.9 years.
The average high temperature in July is 90 degrees, with an average low temperature in January of 62.8 degrees. The average rainfall is approximately 45.1 inches per year, with 0 inches of snow per year.
