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16 Seaside Avenue AVENUE

KEY LARGO, FL 33037
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$11,750,000 $49,538/Mo
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Bed 7

Bed

Bath 9

Bath

SqFt6,585

Sqft

Beyond the gates lies an oceanfront estate whose finest qualities extend far beyond what you have seen! From its protected private marina offering 6 boat slips and fully integrated smart-home technology to its rooftop observation deck, private sandy shoreline, and resort-caliber outdoor living, every element has been designed to deliver an exceptional waterfront lifestyle. Welcome to 16 Seaside Avenue. This extraordinary 7-bedroom, 7 full and 2 half-bath residence offers luxurious living designed for effortless entertaining and multi-generational enjoyment. From the moment the private gates open, a fully integrated smart home system seamlessly controls the estate--from the front entrance and security system to interior lighting, climate, surround sound, and even the dock lighting--creating a level of convenience rarely found in waterfront homes. A commercial elevator services all three levels, while a whole-house generator provides peace of mind year-round. With everyday living in mind, the home features 2 dedicated laundry rooms for the upmost functionality.Every bedroom serves as a private retreat, complete with its own spa-inspired ensuite bathroom, spacious walk-in closet, and custom built-in closet system. Expansive open living areas are filled with natural light and thoughtfully designed to maximize breathtaking Atlantic Ocean views. Outdoor living rivals that of a private resort. The spectacular oceanfront pool, spa and waterfall, covered gazebo, outdoor kitchen, and integrated indoor and outdoor surround sound create the perfect setting for entertaining. A private sandy beach and pier provide an idyllic place to enjoy spectacular sunrises over the Atlantic, while the rooftop observation deck captures sweeping panoramic ocean views of both the ocean and bay. Best of all this property offers the ability for short term 7-Day rentals! This is a rare opportunity to own an estate designed to deliver the very best of the Florida Keys!

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Detail Ic Property Details

Property Type : Residential - Single Family

Price : $11,750,000

AD Id : 86161643

MLS Id : 620408

Beds : 7

Living Area Size : 6,585

Year Built : 2025

County : Monroe

  • Map Map

Map

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Feature Features

  • Bedroom Information

    Total Bedrooms: 7 Laundry Room

    Bathroom Information

    Total Baths: 9 Full Baths: 7 Half Baths: 2

  • Interior Features

    Wet Bar,Built-in Cabinets,Quartz Countertops,Bar,Walk-in Closet(s),Storage,Smoke Alarms,Sky Light(s),Security System,Elevator,Entrance Foyer,Pantry Appliances: Washer,Stainless Steel Appliance(s),Wine Cooler,Ice Machine,Gas Appliances,Freezer,Microwave,Oven,Range,Refrigerator,Dishwasher,Dryer

  • Roofing Information

    Concrete Roof

    Flooring Information

    Tile,Concrete

    Heating & Cooling

    Cooling: Central Air Water Front: Yes Oceanfront Ocean View,Open Water View

    Window Information

    Window Treatments: Impact Rstnce Window,Impact Rstnce Doors

  • Building Information

    Year Built: 2025 Floor Location: 21250 Construction: Concrete Security System: Electric Gate Roof: Concrete Roof

  • Exterior Features

    Bar,Storage,Sandy Beach,Privacy Wall/Fence,Outdoor Kitchen,Lighting,Hot Tub,Gazebo,Fencing,Chickee Hut,Built-in Grill

    Pool Information

    In Ground,Concrete Dimensions: 15 x 35

  • Lot Information

    Lot Dimensions: 50 X 425 Lot SqFt: 21,250 Lot SqFt Source: Property Data Card Pt Sq 4 Re-Sub Seaside Pb2-10 Key Largo G57-212 Or773-777 Or773-778 Or917-2251 Or1326-1721 Or3134-136 Or3134-177 Or3156-

  • Property Information

    SQ ft (Living Area): 6,585 View: Ocean View,Open Water View Subdivision: Seaside Sub (94.5) Stories: 3 Stories

  • Listing Price Information

    List Price: $11,750,000

  • Tax Information

    Taxes: $8,516 Tax Year: 2025 Parcel Number: 00492240000000 Tax Exemptions: None

  • Multi-Unit Information

    Pets Allowed: Pets Allowed

  • Homeowners Association Information

    Mandatory Home Owners Asc: No 1st Right of Refusal: No Association Fee: $0.00

  • Utility Information

    FKAA,Whole House Generatr,Elect Separate Meter,Buyer to Verify
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Nearby Home Value

Address Estimate Bed Bath Sq. Ft Lot Size
325 Calusa St 44, Key Largo, FL, 33037 $370,000 2 2 --
128 La Paloma Rd, Key Largo, FL, 33037 $2,500,000 3 2 1,100 1,100 SqFt
1019 Snapper Ln, Key Largo, FL, 33037 $899,000 3 3 1,547 1,547 SqFt
669 Colson Dr, Key Largo, FL, 33037 $975,000 3 3 --
325 Calusa St Lot 301, Key Largo, FL, 33037 $729,000 3 2 --
325 Calusa St 302, Key Largo, FL, 33037 $815,000 2 1 --
192 2nd Ct, Key Largo, FL, 33037 $599,000 3 4 1,960 1,960 SqFt
411 Mahogany Ave, Key Largo, FL, 33037 $750,000 2 1 768 768 SqFt
21 Tina Pl, Key Largo, FL, 33037 $725,000 4 3 2,109 2,109 SqFt
325 Calusa St #499, Key Largo, FL, 33037 $460,000 2 1 708 708 SqFt

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ByOwner last updated this listing 07/02/2026 @ 21:03

MLS: 620408 LISTED BY: Kelsey Caputo - Frins , Berkshire Hathaway HomeServices Keys Real Estate - Islamorada 305-664-4444 SOURCE: Florida Keys MLS, Inc.

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