16 Seaside Ave

$12,500,000
Price
7
Beds
6,585 Sq. Ft.
$1,898 / Sq. Ft.
6,585
Sq. Ft.
$1,898
per Sq. Ft.

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...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
  1. Listed by Walters Luxury Group Gloria, Rachel and Michaela Walters • Ocean Sotheby's International Realty

Property Details for 16 Seaside Avenue

Waterfront
Oceanfront, Open Water
Waterfront
Yes
Zoning
SC - Sub Urban Commercial District
Subdivision
Seaside Sub (94.5)
Directions
Take Ocean to Seaside Avenue Mile Marker 95 ocean side
Vehicle Storage
Carport, Covered Parking, RV Parking Open, Off Street Parking, Guest Parking, Open Parking
Pets
Pets Allowed
LISTING UPDATED: 12/16/2025 08:40 AM

Property Details for 16 Seaside Avenue

StatusActive
MLS #617061
Days on Market59
Taxes$11,156 / year
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeResidential / Single Family
Year Built2025
Lot Size0.49 AC / 21,250 SF
CountyMonroe County

Location

Listing Courtesy of Ocean Sotheby's International Realty
Add your commute

Building Information for 16 Seaside Avenue

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

Payment Calculator

$62,697 per month

30 year fixed, 6.28% Interest

Principal and Interest

$61,767

Property Taxes

$930

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

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: 80.492069
  • Control Depth: 4
  • Off Shore Island: No
  • Listing Board: Florida Keys
  • Side: Ocean
  • Mile Marker: 94.5
  • Marathon Neighborhood: N/A
  • Accessibility Feat: Accessible Elevator Installed, Parking
  • Neighborhood Feature: Other Area Features, Bike Paths
  • 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: 2024
  • Tax Exemptions: None
Virtual Tour
Property
Lot Information
  • Lot Size: 425' deep X 50' wide
  • Acres: 0.48
  • SqFt Remarks: THIS PARCEL HAS BEEN COMBINED INTO PARCEL 00492240-000000 / 1608459 FOR ASSESSMENT PURPOSES tax year 2023 OR3326-201
  • Parcel #: 00492240-000000
  • 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
  • Bank Owned: No
  • SqFt Source: Appraisal
  • Flood Zone: AE,AE,AE
  • Rentals Allowed: Yes
  • Deed Restrictions: Unknown
  • Picture Count: 140
  • Document Count: 2
  • Building Style: Above Flood: Yes
  • Property Condition: New Construction
  • Security: No Security
  • Title: Title Ins - Buyer
Utilities
  • Utilities: FKAA, Cable Available, Buyer to Verify, Municipal Sewer, Community Swr Plant
  • Pub Sewer HkUp: Yes
  • Species List: No
  • Pool: Yes
  • Handicap Access: Yes
  • Pool Info: Heated: No
  • Pool Info: In Ground, Concrete, Salt Water
  • Porch/Balcony: Open Porch/Balcony, Deck, Patio, Roof Top Deck
Interior and Exterior Features
Interior Features
  • Floor: Tile, Wood
  • GF-Interior Features: Tankless Hot Wtr Htr, LED Lighting, Dual Flush
  • Interior Features: Drapes/Blinds Incl, Built-in Cabinets, Brazilian Quartzite Countertops, Quartz Countertops, Tray Ceilings, Bar, Walk-in Closet(s), Storage, Smoke Alarms, Sky Light(s), Security System, Elevator, Entrance Foyer, Pantry, Split Bedroom, Cathedral Ceilings, Wet Bar
  • Pre-Wired: Cable, Surround Sound
  • Appliances: Washer, Stainless Steel Appliance(s), Wine Cooler, Disposal, Microwave, Oven, Range, Refrigerator, Dishwasher, Dryer
Exterior Features
  • Roof: Concrete Roof
  • Dockage: Dock: Concrete
  • Dockage: Seawall: Concrete
  • Construction: CBS, Concrete
  • Dockage: Dock Privileges, Basin, Boat Slip, Boat Lift
  • Exterior Features: Bar, Water Display, Storage, Sprinkler System, Sandy Beach, Privacy Wall/Fence, Outdoor Kitchen, Lanai, Hot Tub, Gazebo, Fencing, Chickee Hut, Built-in Grill
  • Windows/Doors: Impact Rstnce Window, Impact Rstnce Doors
Room Information
  • Specialty Rooms: Laundry Room, Workshop, Utility Room, Theater Room, Media Room

Property History for 16 Seaside Avenue

DateEvent & SourcePriceAppreciation
Dec 5, 2025

Cancelled

SCMLS #1049862

Dec 2, 2025

Expired

GFLR #F10507628

Oct 28, 2025

Listed (Active)

FKMLS #617061

$12,500,000
Oct 23, 2025

Temp Off Market

FKMLS #615325

Sep 18, 2025

Price Change

SCMLS #1049862

$12,700,000
Sep 11, 2025

Price Change

GFLR #F10507628

$12,700,000
Jun 24, 2025

Listed (Active)

SCMLS #1049862

$12,850,000
Jun 5, 2025

Listed (Active)

GFLR #F10507628

$12,850,000
Jun 4, 2025

Price Change

FKMLS #615325

$12,850,000
Jun 4, 2025

Listed (Active)

FKMLS #615325

$12,700,000
May 31, 2025

Expired

SCMLS #1032440

Apr 14, 2025

Temp Off Market

FKMLS #612017

Dec 20, 2024

Listed (Active)

SCMLS #1032440

$14,500,000
Oct 29, 2024

Listed (Active)

FKMLS #612017

$14,500,000
Feb 11, 2022

Sold (Public Record)

Public Record #1484610893

$1,500,000
Feb 11, 2022

Sold

FKMLS #596616

$1,500,000
Feb 3, 2022

Pending

FKMLS #596616

Dec 1, 2021

Backup Contract

FKMLS #596616

Nov 26, 2021

Pending

FKMLS #596616

Jun 16, 2021

Price Change

FKMLS #596616

$2,250,000
Jun 16, 2021

Price Change

FKMLS #596616

$2,150,000
Jun 16, 2021

Price Change

FKMLS #596616

$2,100,000
Jun 16, 2021

Price Change

FKMLS #596616

$1,999,000
Jun 16, 2021

Listed (Active)

FKMLS #596616

$1,949,000
DateEvent & SourcePrice
12/05/2025

Cancelled

SCMLS #1049862

12/02/2025

Expired

GFLR #F10507628

10/28/2025

Listed (Active)

FKMLS #617061

$12,500,000
10/23/2025

Temp Off Market

FKMLS #615325

09/18/2025

Price Change

SCMLS #1049862

$12,700,000
09/11/2025

Price Change

GFLR #F10507628

$12,700,000
06/24/2025

Listed (Active)

SCMLS #1049862

$12,850,000
06/05/2025

Listed (Active)

GFLR #F10507628

$12,850,000
06/04/2025

Price Change

FKMLS #615325

$12,850,000
06/04/2025

Listed (Active)

FKMLS #615325

$12,700,000
05/31/2025

Expired

SCMLS #1032440

04/14/2025

Temp Off Market

FKMLS #612017

12/20/2024

Listed (Active)

SCMLS #1032440

$14,500,000
10/29/2024

Listed (Active)

FKMLS #612017

$14,500,000
02/11/2022

Sold (Public Record)

Public Record #1484610893

$1,500,000
02/11/2022

Sold

FKMLS #596616

$1,500,000
02/03/2022

Pending

FKMLS #596616

12/01/2021

Backup Contract

FKMLS #596616

11/26/2021

Pending

FKMLS #596616

06/16/2021

Price Change

FKMLS #596616

$2,250,000
06/16/2021

Price Change

FKMLS #596616

$2,150,000
06/16/2021

Price Change

FKMLS #596616

$2,100,000
06/16/2021

Price Change

FKMLS #596616

$1,999,000
06/16/2021

Listed (Active)

FKMLS #596616

$1,949,000

For completeness, Compass 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
Public - PK to 8
Public - 9 to 12
Charter - K to 8
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

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.

Similar Homes

Similar Sold Homes

16 Seaside Avenue is a single family home for sale in Key Largo, FL 33037. This property was listed for sale on October 28, 2025 by Ocean Sotheby's International Realty, it's currently listed at $12,500,000. It has been on the market for a total of 59 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 descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims 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 discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity. Subject to change at any time. Compass makes no guarantee, warranty or representation regarding the accuracy of any waterfront feature, water view or waterfront view.

Listing Courtesy of Ocean Sotheby's International Realty

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.