16 Seaside Avenue, Key Largo, FL 33037
$12,500,000
Property Type:
Residential
Bedrooms:
7
Baths:
9
Square Footage:
6,585
Lot Size (sq. ft.):
21,250
Status:
Active
Current Price:
$12,500,000
List Date:
10/28/2025
Last Modified:
12/16/2025
Description
Welcome to 16 Seaside, an extraordinary oceanfront estate showcasing the perfect balance of modern design, functionality, and refined coastal living. This newly constructed residence is situated on a protected private basin offering the rare, secure deep-water dockage with a sandy peninsula. The private basin provides parking for up to six vessels, each equipped with shore power and water, making it a boater's dream. Spanning 6,585 square feet under air, the home features seven bedrooms, seven en-suite baths, and two half baths, including dual primary suites designed for multi-generational living or guest privacy. The interior exudes modern luxury with a custom chef's kitchen, climate-controlled wine cellar, multi-level elevator, four-zone AC system, and comprehensive smart-home automation managing lighting, audio, climate, pool, and security. Every detail was curated for seamless living and entertaining, from the expansive third-floor entertainment suite overlooking the ocean to the open-concept living spaces lined with glass doors and terraces capturing panoramic views. Outdoors, enjoy a resort-style pool and spa, covered summer kitchen, and a tiki hut on your private sandy beach framed by lush landscaping and privacy fencing. Seven balconies provide stunning vantage points, while an automatic entry gate and approximately 2,500 square feet of covered parking offer security and convenience. Built to last with reinforced, poured concrete construction, impact glass, and a whole-home generator, this residence combines elegance with durability. Set on a .48-acre double lot with flexible suburban/commercial zoning ideal for events and vacation rentals, 16 Seaside delivers unmatched versatility and long-term value. Located just one hour from Miami, this exceptional Key Largo waterfront estate embodies the essence of a Florida Keys lifestyle, where oceanfront serenity, modern craftsmanship, and world-class boating converge in one remarkable private estate sized property
More Information MLS# 617061
Contract Information
Listing Board: Florida Keys
As is Rght to Inspct: Yes
Potential Short Sale: No
Bank Owned: No
Species List: No
Current Price: $12,500,000
Listing Date: 2025-10-28
List Price: $12,500,000
Location, Tax & Legal
City: KEY LARGO
Off Shore Island: No
Mile Marker: 94.5
Marathon Neighborhood: N/A
Side: Ocean
Flood Zone: AE,AE,AE
Alternate Key #: 1608459
Handicap Access: Yes
Parcel #: 00492240-000000
Zoning: SC - Sub Urban Commercial District
Deed Restrictions: Unknown
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: 11156.25
Tax Year: 2024
Pub Sewer HkUp: Yes
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
General Property Description
Realtor.COM Type: Residential - Single Family
Waterfront: Yes
Control Depth: 4
Lot Size: 425' deep X 50' wide
Lot SqFt: 21250
Pool: Yes
Lot Sqft Source: Tax Records
Total Units: 0
Acres: 0.48
SqFt Source: Appraisal
Rentals Allowed: Yes
Style: Single Family
Year Built: 2025
Living Apx SqFt: 6585
Total Bedrooms: 7
Full Baths: 7
Half Baths: 2
Total Baths: 9
Remarks & Misc
Remarks – Consumer: Welcome to 16 Seaside, an extraordinary oceanfront estate showcasing the perfect balance of modern design, functionality, and refined coastal living. This newly constructed residence is situated on a protected private basin offering the rare, secure deep-water dockage with a sandy peninsula. The private basin provides parking for up to six vessels, each equipped with shore power and water, making it a boater's dream. Spanning 6,585 square feet under air, the home features seven bedrooms, seven en-suite baths, and two half baths, including dual primary suites designed for multi-generational living or guest privacy. The interior exudes modern luxury with a custom chef's kitchen, climate-controlled wine cellar, multi-level elevator, four-zone AC system, and comprehensive smart-home automation managing lighting, audio, climate, pool, and security. Every detail was curated for seamless living and entertaining, from the expansive third-floor entertainment suite overlooking the ocean to the open-concept living spaces lined with glass doors and terraces capturing panoramic views. Outdoors, enjoy a resort-style pool and spa, covered summer kitchen, and a tiki hut on your private sandy beach framed by lush landscaping and privacy fencing. Seven balconies provide stunning vantage points, while an automatic entry gate and approximately 2,500 square feet of covered parking offer security and convenience. Built to last with reinforced, poured concrete construction, impact glass, and a whole-home generator, this residence combines elegance with durability. Set on a .48-acre double lot with flexible suburban/commercial zoning ideal for events and vacation rentals, 16 Seaside delivers unmatched versatility and long-term value. Located just one hour from Miami, this exceptional Key Largo waterfront estate embodies the essence of a Florida Keys lifestyle, where oceanfront serenity, modern craftsmanship, and world-class boating converge in one remarkable private estate sized property
Directions: Take Ocean to Seaside Avenue Mile Marker 95 ocean side
Association Info
Mandatory Home Owners Asc: No
1st Right of Refusal: No
Association Fee $: 0
Fee Includes
None: 1
Dockage
Dock: Concrete
Basin: 1
Boat Lift: 1
Boat Slip: 1
Dock Privileges: 1
Seawall: Concrete
Tax Exemptions
None: 1
Appliances
Dishwasher: 1
Disposal: 1
Dryer: 1
Microwave: 1
Oven: 1
Range: 1
Refrigerator: 1
Stainless Steel Appliance(s): 1
Washer: 1
Wine Cooler: 1
Pets
Pets Allowed: 1
Cooling
Ceiling Fans(s): 1
Central Air: 1
Heating
Central: 1
Forced Air: 1
Hot Water: 1
Zoned: 1
Waterfront
Oceanfront: 1
Open Water: 1
Waterview
Ocean View: 1
Open Water View: 1
Floor
Tile: 1
Wood: 1
Neighborhood Feature
Bike Paths: 1
Other Area Features: 1
Interior Features
Bar: 1
Brazilian Quartzite Countertops: 1
Built-in Cabinets: 1
Cathedral Ceilings: 1
Drapes/Blinds Incl: 1
Elevator: 1
Entrance Foyer: 1
Pantry: 1
Quartz Countertops: 1
Security System: 1
Sky Light(s): 1
Smoke Alarms: 1
Split Bedroom: 1
Storage: 1
Tray Ceilings: 1
Walk-in Closet(s): 1
Wet Bar: 1
Property Condition
New Construction: 1
Specialty Rooms
Laundry Room: 1
Media Room: 1
Theater Room: 1
Utility Room: 1
Workshop: 1
Building Style
Above Flood: Yes
Stories: 3 Stories
Windows/Doors
Impact Rstnce Doors: 1
Impact Rstnce Window: 1
Vehicle Storage
Carport: 1
Covered Parking: 1
Guest Parking: 1
Open Parking: 1
RV Parking Open: 1
Off Street Parking: 1
Security
No Security: 1
Construction
CBS: 1
Concrete: 1
Land Size
1/4 - 1/2 Acre: 1
Furnished
Unfurnished: 1
Terms
Cash: 1
Conventional: 1
No Seller Finance: 1
Utilities
Buyer to Verify: 1
Cable Available: 1
Community Swr Plant: 1
FKAA: 1
Municipal Sewer: 1
Porch/Balcony
Deck: 1
Open Porch/Balcony: 1
Patio: 1
Roof Top Deck: 1
Title
Title Ins - Buyer: 1
Exterior Features
Bar: 1
Built-in Grill: 1
Chickee Hut: 1
Fencing: 1
Gazebo: 1
Hot Tub: 1
Lanai: 1
Outdoor Kitchen: 1
Privacy Wall/Fence: 1
Sandy Beach: 1
Sprinkler System: 1
Storage: 1
Water Display: 1
Pool Info
In Ground: 1
Salt Water: 1
Heated: No
Concrete: 1
Pre-Wired
Cable: 1
Surround Sound: 1
Roof
Concrete Roof: 1
Financial Status
Auction: No
Bank Owned: No
Potential Short Sale: No
Standard Sale: Yes
Accessibility Feat
Accessible Elevator Installed: 1
Parking: 1
GF-Interior Features
Dual Flush: 1
LED Lighting: 1
Tankless Hot Wtr Htr: 1
Status Change Info
Status: Active
Property Features
Fee Includes: None
Tax Exemptions: None
Waterfront: Oceanfront; Open Water
Waterview: Ocean View; Open Water View
Dockage: Basin; Boat Lift; Boat Slip; Dock Privileges
Property Condition: New Construction
Vehicle Storage: Carport; Covered Parking; Guest Parking; Off Street Parking; Open Parking; RV Parking Open
Furnished: Unfurnished
Cooling: Ceiling Fans(s); Central Air
Heating: Central; Forced Air; Hot Water; Zoned
Utilities: Buyer to Verify; Cable Available; Community Swr Plant; FKAA; Municipal Sewer
Interior Features: Bar; Brazilian Quartzite Countertops; Built-in Cabinets; Cathedral Ceilings; Drapes/Blinds Incl; Elevator; Entrance Foyer; Pantry; Quartz Countertops; Security System; Sky Light(s); Smoke Alarms; Split Bedroom; Storage; Tray Ceilings; Walk-in Closet(s); Wet Bar
Pre-Wired: Cable; Surround Sound
Specialty Rooms: Laundry Room; Media Room; Theater Room; Utility Room; Workshop
Appliances: Dishwasher; Disposal; Dryer; Microwave; Oven; Range; Refrigerator; Stainless Steel Appliance(s); Washer; Wine Cooler
Exterior Features: Bar; Built-in Grill; Chickee Hut; Fencing; Gazebo; Hot Tub; Lanai; Outdoor Kitchen; Privacy Wall/Fence; Sandy Beach; Sprinkler System; Storage; Water Display
Accessibility Feat: Accessible Elevator Installed; Parking
Pool Info: In Ground; Salt Water; Concrete
Construction: CBS; Concrete
Floor: Tile; Wood
Roof: Concrete Roof
Pets: Pets Allowed
Neighborhood Feature: Bike Paths; Other Area Features
Security: No Security
Land Size: 1/4 - 1/2 Acre
Terms: Cash; Conventional; No Seller Finance
Title: Title Ins - Buyer
GF-Interior Features: Dual Flush; LED Lighting; Tankless Hot Wtr Htr
Documents
SC zoning information ›
Listing Office:
Ocean Sotheby's International Realty
Last Updated: December - 16 - 2025
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.