16 Seaside Avenue, Key Largo, FL 33037 (MLS# 620408)

16 Seaside Avenue, Key Largo, FL 33037

$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: 8/24/2026

Overview

Description

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. 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-in ... (Read more)

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

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

Dockage

Dock Length: 220
Dock: Concrete

More Information

Building Style

Above Flood: Yes
# Stories: 3 Stories

Vehicle Storage

Car(s): 4+

Pool Info

Dimensions: 15 x 35

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

Documents

SURVEY ›

CO ›

ELEVATION CERTIFICATE ›

Listing Office: Berkshire Hathaway HomeServices Keys Real Estate - Islamorada

Last Updated: August - 24 - 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.