16 Seaside Avenue, Key Largo, FL 33037
New Listing
$11,750,000
Property Type:
Residential
Bedrooms:
7
Baths:
9
Square Footage:
6,585
Lot Size (sq. ft.):
21,250
Status:
Active
Current Price:
$11,750,000
List Date:
6/25/2026
Last Modified:
6/25/2026
Overview
Description
...
(Read more)
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!
Listing Details MLS# 620408
Location, Tax & Legal
- Street #
- 16
- Street Name
- Seaside
- Street Suffix
- Avenue
- Key/Island
- Key Largo
- State/Province
- FL
- Zip Code
- 33037
- County
- Monroe
- Subdivision
- Seaside Sub (94.5)
- Area
- 26 - Key Largo S of MM 96.9
- City
- KEY LARGO
- Off Shore Island
- No
- Mile Marker
- 94.5
- Marathon Neighborhood
- N/A
- Senior Community YN
- No
- Side
- Ocean
- Flood Zone
- AE9/10
- Alternate Key #
- 1608459
- Handicap Access
- Yes
- Parcel #
- 00492240000000
- Zoning
- SR - Sub Urban Residential District
- Deed Restrictions
- No
- Legal
- 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-
- Taxes
- 8516.36
- Tax Year
- 2025
- Pub Sewer HkUp
- Yes
Contract Information
- Listing Board
- Florida Keys
- As is Rght to Inspct
- Yes
- Species List
- No
General Property Description
- Realtor.COM Type
- Residential - Single Family
- Style
- Single Family
- Waterfront
- Yes
- Control Depth
- 8
- Pool
- Yes
- Year Built
- 2025
- Lot SqFt
- 21250
- Lot Sqft Source
- Property Data Card
- Acres
- 0.48
- Living Apx SqFt
- 6585
- SqFt Source
- Blue Print
- Total Bedrooms
- 7
- Full Baths
- 7
- Half Baths
- 2
- Total Baths
- 9
- Rentals Allowed
- Yes
- Min Rental Days
- 7
Association Info
- Mandatory Home Owners Asc
- No
- 1st Right of Refusal
- No
- Association Fee $
- 0
Dockage
- Dock Length
- 220
- Dock
- Concrete
- Basin
- Yes
- Boat Lift
- Yes
- Boat Slip
- Yes
More Information
Building Style
- Above Flood
- Yes
- Stories
- 3 Stories
Vehicle Storage
- Car(s)
- 4+
- Carport
- Yes
- Open Parking
- Yes
- Off Street Parking
- Yes
Pool Info
- Dimensions
- 15 x 35
- In Ground
- Yes
- Concrete
- Yes
Remarks & Misc
- Remarks – Consumer
- 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!
Fee Includes
- None
- Yes
Tax Exemptions
- None
- Yes
Appliances
- Dishwasher
- Yes
- Dryer
- Yes
- Freezer
- Yes
- Gas Appliances
- Yes
- Ice Machine
- Yes
- Microwave
- Yes
- Oven
- Yes
- Range
- Yes
- Refrigerator
- Yes
- Stainless Steel Appliance(s)
- Yes
- Washer
- Yes
- Wine Cooler
- Yes
Pets
- Pets Allowed
- Yes
Cooling
- Central Air
- Yes
Waterfront
- Oceanfront
- Yes
Waterview
- Ocean View
- Yes
- Open Water View
- Yes
Floor
- Concrete
- Yes
- Tile
- Yes
Interior Features
- Bar
- Yes
- Built-in Cabinets
- Yes
- Elevator
- Yes
- Entrance Foyer
- Yes
- Pantry
- Yes
- Quartz Countertops
- Yes
- Security System
- Yes
- Sky Light(s)
- Yes
- Smoke Alarms
- Yes
- Storage
- Yes
- Walk-in Closet(s)
- Yes
- Wet Bar
- Yes
Specialty Rooms
- Laundry Room
- Yes
Windows/Doors
- Impact Rstnce Doors
- Yes
- Impact Rstnce Window
- Yes
Security
- Electric Gate
- Yes
Construction
- Concrete
- Yes
Land Size
- 1/4 - 1/2 Acre
- Yes
Furnished
- Unfurnished
- Yes
Utilities
- Buyer to Verify
- Yes
- Elect Separate Meter
- Yes
- FKAA
- Yes
- Whole House Generatr
- Yes
Porch/Balcony
- Open Porch/Balcony
- Yes
- Roof Top Deck
- Yes
Exterior Features
- Bar
- Yes
- Built-in Grill
- Yes
- Chickee Hut
- Yes
- Fencing
- Yes
- Gazebo
- Yes
- Hot Tub
- Yes
- Lighting
- Yes
- Outdoor Kitchen
- Yes
- Privacy Wall/Fence
- Yes
- Sandy Beach
- Yes
- Storage
- Yes
Roof
- Concrete Roof
- Yes
Property Features
Fee Includes:
None
Tax Exemptions:
None
Waterfront:
Oceanfront
Waterview:
Ocean View; Open Water View
Dockage:
Basin; Boat Lift; Boat Slip
Vehicle Storage:
Carport; Off Street Parking; Open Parking
Furnished:
Unfurnished
Cooling:
Central Air
Utilities:
Buyer to Verify; Elect Separate Meter; FKAA; Whole House Generatr
Interior Features:
Bar; Built-in Cabinets; Elevator; Entrance Foyer; Pantry; Quartz Countertops; Security System; Sky Light(s); Smoke Alarms; Storage; Walk-in Closet(s); Wet Bar
Specialty Rooms:
Laundry Room
Appliances:
Dishwasher; Dryer; Freezer; Gas Appliances; Ice Machine; Microwave; Oven; Range; Refrigerator; Stainless Steel Appliance(s); Washer; Wine Cooler
Exterior Features:
Bar; Built-in Grill; Chickee Hut; Fencing; Gazebo; Hot Tub; Lighting; Outdoor Kitchen; Privacy Wall/Fence; Sandy Beach; Storage
Pool Info:
In Ground; Concrete
Construction:
Concrete
Floor:
Concrete; Tile
Roof:
Concrete Roof
Pets:
Pets Allowed
Security:
Electric Gate
Land Size:
1/4 - 1/2 Acre
Listing Office:
Berkshire Hathaway HomeServices Keys Real Estate - Islamorada
Last Updated: June - 25 - 2026
The data relating to real estate for sale on this web site comes in part from the Florida Keys MLS, Inc. Information provided is deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. The information being provided is for consumers’ personal, non-commeral use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. IDX data is deemed reliable but is not guaranteed accurate by the MLS.

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