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Browse All Key West FL Multi-Family Properties for Sale

$1,050,000
4 Beds ⋅ 2 Baths ⋅ 620461 MLS
Duplex with adjoining commercial lot for sale. Duplex has 1,342 square feet of living space on a 2,841 sq ft lot with 2 two bedroom one units generating $74,400.00 annually. Units have been recently renovated and ready for new tenants. The adjoining 2,244 square foot commercial zoned lot would be ideal for one or more food vendor trucks, with excellent visibility and heavy traffic. Make an offer today!

1421-1425 2nd St, Key West
$1,325,000
2 Beds ⋅ 2 Baths ⋅ 620360 MLS
Tucked into the heart of Old Town Key West, this beautifully renovated duplex offers two distinct 1-bedroom, 1-bath residences, each finished with a refined European style kitchen. Clean lines, quality cabinetry, and thoughtful detailing give both sides a fresh, elevated feel while preserving the easygoing island character that makes Old Town so sought after. Each unit lives comfortably and independently, making this an ideal setup for an owner-occupant looking to offset costs, an investor seeking dual income streams, or a buyer wanting a flexible space for family and guests. Private yard space adds room to garden, relax, or entertain under the palms, a true rarity at this address.

1126 Grinnell St, Key West
$2,500,000
8 Beds ⋅ 4 Baths ⋅ 619978 MLS
Discover an exceptional investment opportunity in the heart of the Florida Keys! Situated on a spacious lot just 3 minutes from the beach and world-famous Duval Street, this unique multi-unit property offers versatility, comfort, and island-style living at its finest. The main residence features 5 bedrooms and 3 bathrooms across 2,432 total s/f, designed for both relaxation and entertaining. Enjoy a private pool with pool heater, along with the convenience of two elevated A/C units, both less than 4 years old. The second unit offers 3 bedrooms and 1 bathroom with 1,504 total s/f of living space, plus a 2-car garage and its own elevated A/C unit, also less than 4 years old. Built for peace of mind and modern living, the property includes a durable metal roof, impact windows throughout, camera security system, preparation for an electric vehicle charger, and separate electric and water meters for each unit. Whether you're seeking a primary residence, vacation retreat, or income-producing property, this rare Florida Keys gem combines location, flexibility, and outstanding features in one incredible package.

1409 Whalton St, Key West
$1,675,000
5 Beds ⋅ 3 Baths ⋅ 619947 MLS
Welcome to 606 Grinnell Street located in the heart of Old Town Key West, this charming duplex offers the perfect blend of classic Key West character and flexible living opportunities. The first-floor unit features 2 nice sized bedrooms and 1.5 baths, while the spacious second-floor unit offers 3 bedrooms and 1 bath, complete with a private rear balcony overlooking the backyard oasis. Both units feature full sized kitchens with great dining spaces, as well as living rooms too. A welcoming front porch adds to the home's island charm, creating the perfect spot to relax and enjoy the neighborhood atmosphere. Step outside to your private backyard retreat featuring a sparkling pool for your relaxation, ideal for entertaining, time off, or enjoying the Key West lifestyle year-round. Whether you're looking for an investment property, multi-generational living, or the option to live in one unit while renting the other, this versatile Old Town property offers endless potential. There's a convenient side door entrance for the 2nd unit upstairs, while having a lockout door in the first unit if you wanted access to upstairs. Nice thought for Indoor or Outdoor Access to upstairs. Just moments from world-famous Duval Street with lots of dining options, historical seaport, shopping, and nightlife experiences.

606 Grinnell St, Key West
$9,888,000
3 Beds ⋅ 2 Baths ⋅ 619724 MLS
Fabulous Find on the Atlantic Side of Key West! Welcome to a truly unique opportunity in the heart of Key West. As the last and only remaining undeveloped property in the Historic Commercial Tourist District (HCT zone), this listing presents a rare and final chance to create something extraordinary. Imagine waking up to breathtaking, unobstructed ocean and beach views every day. Seabirds passing overhead, gentle breezes arriving at your lanai--it's an experience like nowhere else. This is island living at its finest! Permitted HCT uses include: Single-family and two-family residential dwellings, Multiple-family residential dwellings, Restaurant, Business and professional offices, Hotels, Motels, transient lodging, and more. This two-story home comes equipped with two separate electric meters. This exceptional property is truly one of a kind, with no identical or closely similar listings anywhere in Key West. The ideal circumstances are here and now-- an unparalleled combination of an oversized ocean-view lot, located just three blocks from Duval Street, the gateway to downtown. Spanning 8,700 square feet, this property offers ample space for your creative vision, whether you dream of building a luxurious residence, alongside a commercial venture boutique hotel, or restaurant, -- this and more are supported by HCT zoning. This property is all about the excitement of shaping a new vision for a future in paradise. Let your imagination run wild and transform this blank canvas into something extraordinary. Don't miss out on this once-in-lifetime opportunity--call today for your private tour and start envisioning your future in Key West!

1430 Vernon Ave, Key West
$1,875,000
4 Beds ⋅ 3 Baths ⋅ 619723 MLS
DUPLEX! Discover the breathtaking corner property at Sunrise Shores, set on an expansive lot exceeding 13,000 square feet. POOL! The main residence offers over 1,750 square feet of living space, complemented by a detached guest cottage of 640 square feet. This meticulously maintained property has been cherished by its owners. The main home features three bedrooms and two bathrooms. It boasts a thoughtfully designed layout that includes a spacious family room and a large living room with a fireplace that opens up to the lanai. The primary bedroom provides direct access to the pool area and features an updated bathroom and a generous walk-in closet. The second bedroom also opens to the pool area, while the third bedroom is conveniently located next to the updated hall bath. There is also a laundry room with additional storage space. The detached guest cottage includes one bedroom and one bathroom. This property is perfect for owner-occupiers, investors, multi-generational living, and more.

1516 17th Ter, Key West
$999,000
6 Beds ⋅ 2 Baths ⋅ 619618 MLS
Duplex with Solid Income - $91,800/Year This income-producing duplex offers two spacious units, each featuring 3 bedrooms and 1 bathroom--an ideal setup for steady, long-term rental demand. Currently leased at $3,850 and $3,800 per month, the property delivers a strong annual income of $91,800. Situated on a 4,400 sq. ft. lot in a desirable location near the coast, this property is just a short ride from the energy of downtown, making it highly attractive to tenants who want both convenience and lifestyle. Each unit is separately configured, providing flexibility for investors or owner-occupants. The rear unit benefits from off-street parking--a valuable feature in this market. Built with durable Indian Block construction, the property offers long-term structural integrity with room for future value-add opportunities.

1916 Seidenberg Ave, Key West
$449,000
2 Beds ⋅ 1 Baths ⋅ 619604 MLS
Why buy in a condo complex? This charming renovated 2-bedroom, 1-bath residence offers an exceptional opportunity to own in the heart of Key West without sacrificing privacy or outdoor living. Thoughtfully updated throughout, the home features a modern kitchen with stainless steel appliances, dishwasher, and the convenience of an in-unit washer and dryer (an amenity not always found in Key West). Sharing just one common wall, the home lives much like a private cottage with its own entrance, parking, and a fenced backyard currently with a deck, designed for relaxing, entertaining, or enjoying island life. Recent renovations include hurricane-impact windows, updated plumbing, newer air conditioning, and stylish finishes that make this property truly move-in ready. Ideally located in Mid-Town along Key West's cross-town bike path, you'll enjoy quick access to beaches, shopping, dining, and Old Town. At $449,000, this is an outstanding alternative to condo living with the added benefits of private outdoor space, no shared hallways, and the comfort of a home that is ready to enjoy from day one. (condo docs to be filed). Call today for your personal tour.

2515 Staples Ave Unit Unit B, Key West
$825,000
2 Beds ⋅ 2 Baths ⋅ 619418 MLS
Prime redevelopment opportunity in the coveted upper section of Eagle Avenue, now offered with owner financing. This legal duplex is situated on one of the most desirable blocks in Key West, within a well-established residential neighborhood, presenting a compelling opportunity for investors, builders, or end users looking to create value. The main house is ready for a full renovation, offering a blank canvas to reimagine, customize, or redevelop to maximize returns. A City of Key West build-back letter is already in place, preserving valuable redevelopment rights and helping to streamline the process. For those seeking a larger project, this property can be combined with the adjacent vacant, buildable lot at 3705 Eagle Avenue creating a unique opportunity for expansion or future development. Ideally located near schools, shopping, beaches, and just minutes from Old Town, this is a rare chance to invest, renovate, or rebuild in a premier Key West location.

3711 Eagle Ave, Key West
$999,000
1 Beds ⋅ 1 Baths ⋅ 619196 MLS
Discover a rare investment opportunity in the heart of Key West. This spacious corner duplex lot at 2330 Staples St and 1428 6th St offers incredible potential with two separate addresses and alley access for three convenient side entrances. The large lot features a charming, spacious cottage complete with a full kitchen, a bedroom with ample closet space, a stylish bathroom, and an attached garage--perfect for comfortable living or rental income. The second unit has been demolished, providing a blank canvas to rebuild your dream home or expand your investment portfolio. Alternatively, you can choose to demolish the existing cottage and build two brand-new units on this generous lot. Mature landscaping surrounds the property, offering privacy and a serene atmosphere. With two separate ROGOs ready to go and the Staples side of the lot free from flooding, you can start building immediately. Don't miss this unique chance to own a versatile property in a prime Key West location with endless possibilities. Whether you're looking to renovate, rebuild, or develop, this property is your gateway to maximizing value and enjoying the vibrant lifestyle of Key West. Act now and make this exceptional property yours!

2330 Staples Ave, Key West
$1,480,000
2 Beds ⋅ 4 Baths ⋅ 619087 MLS
Legal duplex in the heart of Old Town Key West offering flexibility for investors or owner-occupants alike. Each residence features a private entrance, in-unit laundry, electric meter, and thoughtful renovations that make the property truly turn-key. Classic Key West character shines throughout with vaulted ceilings, exposed beams, skylights, and beautiful wood floors creating a bright and airy feel. Updated kitchens, bathrooms, and high-end appliances add modern comfort while maintaining the home's historic charm. Perfect for living in one unit while renting the other, or as a full investment property. The home is fully fenced and includes an off-street parking space, just blocks from Duval Street

709 Olivia St, Key West
$1,299,999
3 Beds ⋅ 2 Baths ⋅ 618878 MLS
LEGAL DUPLEX with INVESTMENT OPPORTUNITY. Located in the Old Town Key West neighborhood in the X Flood zone, this historic property presents many opportunities. Increase the square footage and/or covert to a single family home. Bring your creativity to this historic charmer. Currently set up as a Legal Duplex with 2 bedrooms/1 bath downstairs, and 1 bedroom/ 1 bath upstairs with separate electric and water meters. The attic can easily be converted to additional living space the same size as the upstairs unit. Adding approximately 700 sq ft. Park your car in your own private driveway. Add a pool to your backyard. The property is fenced in and very private. An aquifer exists on the property allowing you a water source for your irrigation and landscape. The amenities of this location offer a neighborhood grocery store, bakery, restaurants, art galleries and Bayview Park all with in walking distance. Now is your chance to bring your vision to reality in Old Town Key West. Schedule your private tour today!

1306 Virginia St, Key West
$1,250,000
4 Beds ⋅ 3 Baths ⋅ 618862 MLS
Don't miss this rare opportunity to own a legal duplex on a spacious 10,000 SqFt corner lot! The main residence, solid CBS construction, offers 2 bedrooms, 2 bathrooms, and a generous 2,004 SqFt of living space. The open-concept layout features a large living room, a well-appointed kitchen with an adjoining dining area, and plenty of natural light. There's also a garage, laundry room, and potential to easily add a third bedroom. The separate 2-bedroom, 1-bath cottage spans 660 SqFt—perfect for rental income, extended family, or a private guest house. Outside, the expansive yard offers endless possibilities. With plenty of space for a custom patio, outdoor kitchen, or fire pit, it's the ideal setup for entertaining, weekend gatherings, or simply enjoying the outdoors. Plenty of parking for multiple vehicles, a boat, or a trailer—perfect for those who need both space and versatility. Whether you're an investor or looking for a multi-generational living solution, this property is packed with potential and ready to make your vision a reality!

1409 4th St, Key West
$849,000
5 Beds ⋅ 2 Baths ⋅ 618514 MLS
EXCELLENT OPPORTUNITY! EXCELLENT LOCATION! This duplex offers several terrific options for the buyer -- from building a brand new home in a prime location to a top to bottom renovation project. In either case, you could choose to make it your own, or make it an income producing investment by living in one side and renting out the other or even renovating it to sell. Additionally, this property would be perfect for staff housing. Plenty of options in a great location make this one to see.

1432 Eliza St, Key West
$1,354,000
3 Beds ⋅ 3 Baths ⋅ 618714 MLS
This Residential Duplex can be purchased alone or with adjacent property located at 1610 Laird. Street. Owner financing possible. Long term rentals are in place with great payment history and income. Leases must convey at closing. Front unit consists of two bedrooms and one bathroom, living room, dining area, covered patio, full size kitchen along with off street parking and washer. The second unit is located in the backyard and is a townhouse with one bedroom, one full kitchen and additional living space upstairs. Must have 24 hours to show.

1612 Laird St, Key West
$925,000
4 Beds ⋅ 3 Baths ⋅ 618352 MLS
Well-maintained duplex offering flexible living and strong income potential in a desirable Key West location. The property features a charming 3-bedroom, 2-bath main home plus a separate 1-bedroom, 1-bath studio cottage—ideal for extended family, guests, or rental income. Both units are thoughtfully laid out with comfortable living spaces and plenty of natural light. Currently fully leased and income-producing, this is an excellent opportunity for investors or owner-occupants looking to offset expenses while enjoying island living.

2004 Patterson Ave, Key West
$999,999
3 Beds ⋅ 3 Baths ⋅ 618760 MLS
Income producing Duplex in Old Town Key West! The Owner prefer to hold the financed note for a new owner. Fully renovated offering strong income potential and turnkey condition. Recent upgrades include a new roof, siding, impact windows, updated kitchens and baths, and new flooring in the rear unit. The downstairs features two lockout units--rear unit with large private backyard, and front unit with private front porch. Upstairs treetop unit is currently tenant-occupied. Centrally located directly across from Bayview Park, this property offers consistent rental demand and separate electric. X Flood zone with plenty of room for a pool in the backyard.

1018 Georgia St, Key West
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