$11,750,000
16 Seaside Ave
Key Largo, FL, 33037
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 Ocean views. Outdoor living rivals that of a private resort. The spectacular oceanfront pool, spa and waterfall, gazebo, outdoor kitchen, and integrated indoor/ outdoor surround sound create the perfect setting for entertaining. A private sandy beach and pier provide an idyllic place to enjoy sunrises over the Atlantic, while the rooftop observation deck captures panoramic ocean views of both the ocean and bay. Best of all this property offers the ability for short term 7-Day rentals!
Property Details
Price:
$11,750,000
MLS #:
A12043189
Status:
Active
Beds:
7
Baths:
8
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
SEASIDE RESUBD
Neighborhood:
seasideresubd
Listed Date:
Jun 25, 2026
Finished Sq Ft:
6,585
Year Built:
2025
Schools
Interior
Appliances
Dishwasher, Dryer, Electric Water Heater, Gas Range, Microwave, Refrigerator, Washer
Bathrooms
7 Full Bathrooms, 2 Half Bathrooms
Cooling
Other
Flooring
Concrete, Tile
Heating
Central
Interior Features
First Floor Entry, Built-in Features, Closet Cabinetry, Elevator, Entrance Foyer, Pantry, Skylight, Walk-In Closet(s), Wet Bar, Storage, Utility Room/Laundry
Laundry Features
Utility Room/Laundry
Exterior
Accessibility Features
Accessible Elevator Installed
Architectural Style
Attached, Three Or More Stories
Community Features
None
Construction Materials
CBS Construction, Pre-Cast Concrete Construction
Covered Spaces
8
Direction Faces
Northwest
Exterior Features
Built-In Grill, Lighting, Open Balcony
Fencing
Fenced
Lot Features
1/4 To Less Than 1/2 Acre Lot
New Construction YN
1
Open Parking YN
1
Parking Features
Attached Carport, Driveway, Guest, Rv/Boat Parking
Patio And Porch Features
Open Balcony, Open Porch
Roof
Concrete
Security Features
Smoke Detector
View
Ocean
Waterfront Features
Ocean Access, Ocean Front
Window Features
Skylight
Financial
Tax Year
2025
Taxes
$8,516
Mortgage Calculator
Map
Current real estate data for Single Family in Key Largo as of Jul 09, 2026
125
Single Family Listed
173
Avg DOM
884
Avg $ / SqFt
$1,863,627
Avg List Price
Community
- Address16 Seaside Ave Key Largo FL
- SubdivisionSEASIDE RESUBD
- CityKey Largo
- CountyMonroe County
- Zip Code33037
Subdivisions in Key Largo
- AMENDED & EXTENDED PLAT O
- ANGLERS PARK
- ANGLERS PARK SHORES
- BAHIA MAR ESTS
- Bay Haven
- BAY HAVEN SEC 1,Bay Haven
- BAY HAVEN SEC 2
- BERMUDA SHORES
- BLUE WATERS TR VILLAGE SE
- BOWENS ADD RIVIERA VILLAG
- BUCCANEER PT
- BUCCANEER PT LARGO SOUND
- BUTTONWOOD SHORES ADD
- CALUSA CAMPGROUND
- CALUSA CAMPGROUND,Calusa Campground
- Captain Jax Mobile
- CORAL COAST
- CROSS KEY WATERWAYS EST S
- DOVE CREEK ESTATES
- HAMMER POINT PARK
- HARBORAGE, THE
- HARRIS OCEAN PARK ESTS
- HOLIDAY BY THE SEA
- HOLIDAY HOMESITES
- Island of Key Largo Point
- KAWAMA TOWER
- KAWAMA YACHT CLUB
- KEY LARGO BEACH
- KEY LARGO BEACH ADD
- Key Largo Kampground
- Key Largo Mob Homesites,Key Largo Mob Homesi
- KEY LARGO NORTH
- KEY LARGO OCEAN RESORT CO
- KEY LARGO OCEAN RESORT CO,Key Largo Ocean Res
- KEY LARGO OCEAN RESORT CO,Key Largo Ocean Reso
- KEY LARGO OCEAN RESORT CON
- KEY LARGO OCEAN RESORT,KEY LARGO OCEAN RESO
- KEY LARGO OCEAN SHORES AD
- KEY LARGO PARK AMD
- KEY LARGO TRAILER VILLAGE
- KEY LARGO YACHT CLUB
- LAKE SURPRISE ESTATES
- LAKE SURPRISE ESTATES,LAKE SURRISE ESTATES
- LANDINGS OF LARGO
- LANDINGS OF LARGO II
- LARGO BEACH
- LARGO GARDENS
- LARGO SOUND PARK
- LARGO SOUND PARK 1ST ADD
- LARGO SOUND VILLAGE
- LIME GROVE ESTATE SEC 1
- LIME GROVE ESTATES PROPER
- MANATEE BAY CLUB
- MANDALAY
- MONROE PARK
- OCEAN ISLE ESTATE
- Ocean Reef Club
- OCEAN REEF SHORES
- OCEAN SHORES KEY LARGO
- PAMELA VILLA
- PARADISE POINT
- PIRATES COVE
- PIRATES COVE 1ST ADD
- PORT LARGO
- PORT LARGO 3RD ADD
- Riviera Village
- RIVIERA VILLAGE REV & AMD
- Rock Harbor Est
- ROCK HARBOR ESTATE
- ROCK HARBOR ESTATE EST 980
- Rock Harbor Manor
- SANCTUARY AT KEY LARGO 3
- SEASIDE 1ST ADD
- SEASIDE RESUBD
- SEXTON COVES ESTATES
- SILVER SHORES MOBILE HOME
- SOMBRERO PROPERTIES, THE
- STILLWRIGHT POINT NO 1
- STILLWRIGHT POINT NO 2
- STILLWRIGHT POINT NO 2,STILLWRIGHT POINT NO
- SUNRISE POINT REV
- SUNRISE POINT REV RESUBD
- SUNSET WATERWAYS
- TAMARIND BAY CLUB CONDOMI
- THE DOLPHIN AT MARINERS C
- TWIN LAKES
- TWIN LAKES 1ST ADD
- WINSTON WATER WAYS AMD
- Winston waterways
- WINSTON WATERWAYS NO 2
- WINSTON WATERWAYS NO 2 AM
- WYNKENBLYNKEN & NOD EST
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Property Summary
- Located in the SEASIDE RESUBD subdivision, 16 Seaside Ave Key Largo FL is a Single Family for sale in Key Largo, FL, 33037. It is listed for $11,750,000 and features 7 beds, 8 baths, and has approximately 6,585 square feet of living space, and was originally constructed in 2025. The current price per square foot is $1,784. The average price per square foot for Single Family listings in Key Largo is $884. The average listing price for Single Family in Key Largo is $1,863,627.

16 Seaside Ave
Key Largo, FL








































































































