16 Seaside Ave

Key Largo, FL 33037

$11,750,000
Price
7
Beds
6,585 Sq. Ft.
$1,784 / Sq. Ft.
6,585
Sq. Ft.
$1,784
per Sq. Ft.
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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. This extraordinary 7-bedroom, 7 full and 2 half-bath residence offers luxurious living designed...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!
  1. Listed by Kelsey Caputo - Frins • Berkshire Hathaway HomeServices Keys Real Estate - Islamorada

Property Details for 16 Seaside Avenue

Waterfront
Oceanfront
Waterfront
Yes
Zoning
SR - Sub Urban Residential District
Subdivision
Seaside Sub (94.5)
View
Ocean View
Vehicle Storage
Carport, Off Street Parking, Open Parking
Pets
Pets Allowed
LISTING UPDATED: 06/25/2026 03:09 AM

Property Details for 16 Seaside Avenue

StatusActive
MLS #620408
Days on Market5
Taxes$8,516 / year
HOA Fees-
Condo/Co-op Fees-
Property TypeSingle Family
MLS TypeResidential / Single
Year Built2025
Lot Size0.49 AC / 21,250 SF
CountyMonroe County
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Location

Listing Courtesy of Berkshire Hathaway HomeServices Keys Real Estate - Islamorada
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Building Information for 16 Seaside Avenue

Stories3Year Built2025Building Size-Lot Size0.49 AC / 21,250 SF

Payment Calculator

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$59,261 per month

30 year fixed, 6.36% Interest

Principal and Interest

$58,552

Property Taxes

$710

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

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Property Information for 16 Seaside Avenue

Summary
Location and General Information
  • Waterview: Ocean View, Open Water View
  • Area: 26 - Key Largo S of MM 96.9
  • Absolute Longitude: 80.491787
  • Control Depth: 8
  • Off Shore Island: No
  • Listing Board: Florida Keys
  • Side: Ocean
  • Mile Marker: 94.5
  • Marathon Neighborhood: N/A
  • Key/Island: Key Largo
Taxes and HOA Information
  • Association Info: Mandatory Home Owners Asc: No
  • Association Info: 1st Right of Refusal: No
  • Fee Includes: None
  • Furnished: Unfurnished
  • Tax Year: 2025
  • Tax Exemptions: None
Property
Lot Information
  • Lot Size: 50 X 425
  • Acres: 0.48
  • Parcel #: 00492240000000
  • Land Size: 1/4 - 1/2 Acre
Property and Assessments
  • 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-
  • MLS Approved: Y
  • SqFt Source: Blue Print
  • Flood Zone: AE9/10
  • Rentals Allowed: Yes
  • Deed Restrictions: No
  • Picture Count: 118
  • Document Count: 7
  • Building Style: Above Flood: Yes
  • Security: Electric Gate
Utilities
  • Utilities: FKAA, Whole House Generatr, Elect Separate Meter, Buyer to Verify
  • Pub Sewer HkUp: Yes
  • Species List: No
  • Pool: Yes
  • Handicap Access: Yes
  • Pool Info: Dimensions: 15 x 35
  • Pool Info: In Ground, Concrete
  • Porch/Balcony: Open Porch/Balcony, Roof Top Deck
Interior and Exterior Features
Interior Features
  • Floor: Tile, Concrete
  • 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
Exterior Features
  • Roof: Concrete Roof
  • Dockage: Dock Length: 220
  • Dockage: Dock: Concrete
  • Construction: Concrete
  • Dockage: Boat Lift, Basin, Boat Slip
  • Exterior Features: Bar, Storage, Sandy Beach, Privacy Wall/Fence, Outdoor Kitchen, Lighting, Hot Tub, Gazebo, Fencing, Chickee Hut, Built-in Grill
  • Windows/Doors: Impact Rstnce Window, Impact Rstnce Doors
Room Information
  • Specialty Rooms: Laundry Room

Property History for 16 Seaside Avenue

DateEvent & SourcePriceAppreciation
Jun 25, 2026

Listed (Active)

MiamiRE #A12043189

$11,750,000—
Jun 25, 2026

Listed (Active)

FKMLS #620408

$11,750,000—
Jun 18, 2026

Temp Off Market

FKMLS #619772

—
DateEvent & SourcePrice
06/25/2026

Listed (Active)

MiamiRE #A12043189

$11,750,000
06/25/2026

Listed (Active)

FKMLS #620408

$11,750,000
06/18/2026

Temp Off Market

FKMLS #619772

—

For completeness, we often displays two records for one sale: the MLS record and the public record.

Public Records for 16 Seaside Avenue

Taxable ValueLand$825,000Additions$59,023Total$884,023
Tax Record2024$11,156 ($930 / month)
Home Facts
Beds2Baths1Total Finished SqFt930 SqFtAbove Grade Finished SqFt930 SqFtStories1Lot Size21,249 SqFtStyleResidentialYear Built1962CountyMONROEAPN00492240-000000

Schools near 16 Seaside Avenue

This home is within Monroe.
Rating
School
Type
Grades
Distance
Key Largo School
Public - PK to 8
Coral Shores High School
Public - 9 to 12
Ocean Studies Charter
Charter - K to 8
Upper Keys Academic Connections for Excellence
Public - 6 to 12
Rating
School
Distance
Key Largo School
PublicPK to 8

Coral Shores High School
Public9 to 12

Ocean Studies Charter
CharterK to 8

Upper Keys Academic Connections for Excellence
Public6 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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More information about 16 Seaside Avenue, Key Largo, FL 33037

16 Seaside Avenue is a single family home for sale in Key Largo, FL 33037. This property was listed for sale on June 25, 2026 by Berkshire Hathaway HomeServices Keys Real Estate - Islamorada, it's currently listed at $11,750,000. It has been on the market for a total of 5 days and was last sold on February 11, 2022. This listing's school district is Monroe. Nearby schools include Key Largo School, Coral Shores High School and Ocean Studies Charter. 16 Seaside Avenue is a 7-bed, 9-bath, 6,585 sqft single family home built in 2025.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of any information, descriptions or measurements (including square footage measurements and property condition), such should be independently verified through appropriate means, including, but not limited to, in person inspection and public records, and Compass International Holdings, its subsidiaries, affiliates and independently owned and operated franchisees, and their affiliated agents and associated third parties expressly disclaim any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the seller's discretion. No financial or legal advice provided. Equal Housing Opportunity. Subject to change at any time. Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties make no guarantee, warranty or representation regarding the accuracy of any waterfront feature, water view or waterfront view.

Listing Courtesy of Berkshire Hathaway HomeServices Keys Real Estate - Islamorada

Based on information from one of the following Multiple Listing Services: Beaches Multiple Listing Service, Inc., Martin County REALTORS® of the Treasure Coast, Inc., Miami Association of REALTORS®. Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by Beaches Multiple Listing Service, Inc., Martin County REALTORS® of the Treasure Coast, Inc., Miami Association of REALTORS® is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.