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
New construction
$12,500,000
16 Seaside Ave, Key Largo, FL 33037
7beds
6,585sqft
Est.:
Single Family Residence
Built in 2025
0.48 Acres Lot
$-- Zestimate®
$1,898/sqft
$-- HOA
What's special
Multi-level elevatorAutomatic entry gateCovered summer kitchenResort-style pool and spaSandy peninsulaProtected private basinClimate-controlled wine cellar
- 121 days |
- 1,098 |
- 21 |
Zillow last checked: 9 hours ago
Listing updated: February 14, 2026 at 11:36pm
Listed by:
Walters Luxury Group Gloria, Rachel and Michaela Walters 305-942-6834,
Ocean Sotheby's International Realty
Source: FLKMLS,MLS#: 617061
Originating MLS: Florida Keys
Originating MLS: Florida KeysTour with a local agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 7
- Bathrooms: 9
- Full bathrooms: 7
- 1/2 bathrooms: 2
Heating
- Central, Zoned, Hot Water, Forced Air
Cooling
- Central Air, Ceiling Fans(s)
Appliances
- Included: Washer, Stainless Steel Appliance(s), Wine Cooler, Disposal, Microwave, Oven, Range, Refrigerator, Dishwasher, Dryer, Tankless Water Heater
- Laundry: Laundry Room
Features
- Built-in Cabinets, Brazilian Quartzite Countertops, Quartz Countertops, Tray Ceiling(s), Bar, Walk-In Closet(s), Storage, Elevator, Entrance Foyer, Pantry, Split Bedroom, Cathedral Ceiling(s), Wet Bar, Utility Room, Theater Room, Media Room, Sound System
- Flooring: Tile, Wood
- Doors: Impact Rstnce Doors
- Windows: Drapes/Blinds Incl, Skylight(s), Impact Rstnce Window
Interior area
- Total interior livable area: 6,585 sqft
Video & virtual tour
Property
Parking
- Parking features: Carport, Covered, RV Parking Open, Off Street, Guest, Open
- Has carport: Yes
- Has uncovered spaces: Yes
Accessibility
- Accessibility features: Yes, Accessible Elevator Installed, Parking
Features
- Levels: 3 Stories
- Stories: 3
- Patio & porch: Lanai, Open Porch/Balcony, Deck, Patio, Roof Top Deck
- Exterior features: Bar, Water Display, Storage, Sprinkler System, Sandy Beach, Outdoor Kitchen, Built-in Barbecue, Boat Slip
- Has private pool: Yes
- Pool features: In Ground, Concrete, Salt Water
- Has spa: Yes
- Spa features: Private
- Fencing: Privacy,Fenced
- Has view: Yes
- View description: Ocean, Water
- Has water view: Yes
- Water view: Ocean,Water
- Waterfront features: Oceanfront, Open Water, Waterfront, Sandy Beach, Seawall: Concrete, Dock: Concrete, Dockage: Dock Privileges, Basin, Boat Slip, Boat Lift
Lot
- Size: 0.48 Acres
- Dimensions: 425' deep x 50' wide
- Features: 1/4 - 1/2 Acre
Details
- Additional structures: Workshop, Gazebo, Chickee Hut
- Parcel number: 00492240000000
- Zoning: SC
- Zoning description: Sub Urban Commercial District
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- CBS, Concrete
- Roof: Concrete
Condition
- New Construction
- New construction: Yes
- Year built: 2025
Utilities & green energy
- Sewer: Municipal Sewer, Community Swr Plant, Public Sewer
- Utilities for property: FKAA, Cable Available, Buyer to Verify, Cable Connected
Green energy
- Energy efficient items: Lighting
- Water conservation: Dual Flush
Community & HOA
Community
- Features: Other, Bike Paths
- Security: Smoke Detector(s), Security System, No Security
- Subdivision: Seaside Sub (94.5)
HOA
- Has HOA: No
- Services included: None
Location
- Region: Key Largo
Financial & listing details
- Price per square foot: $1,898/sqft
- Tax assessed value: $884,023
- Annual tax amount: $11,156
- Date on market: 10/28/2025
- Listing terms: No Seller Finance,Cash,Conventional
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
Price history
| Date | Event | Price |
|---|---|---|
| 10/28/2025 | Price change | $12,500,000-1.6%$1,898/sqft |
Source:  Key West AOR #617061 Report a problem | ||
| 9/11/2025 | Price change | $12,700,000-1.2%$1,929/sqft |
Source: Key West AOR #615325 Report a problem | ||
| 6/4/2025 | Listed for sale | $12,850,000-11.4%$1,951/sqft |
Source: Key West AOR #615325 Report a problem | ||
| 6/1/2025 | Listing removed | $14,500,000$2,202/sqft |
Source: Space Coast AOR #1032440 Report a problem | ||
| 10/29/2024 | Listed for sale | $14,500,000+866.7%$2,202/sqft |
Source:  FLKMLS #612017 Report a problem | ||
| 2/11/2022 | Sold | $1,500,000-23%$228/sqft |
Source: FLKMLS #596616 Report a problem | ||
| 12/1/2021 | Contingent | $1,949,000$296/sqft |
Source: Key West AOR #596616 Report a problem | ||
| 11/19/2021 | Price change | $1,949,000-2.5%$296/sqft |
Source: Key West AOR #596616 Report a problem | ||
| 9/22/2021 | Price change | $1,999,000-4.8%$304/sqft |
Source: FLKMLS #596616 Report a problem | ||
| 8/9/2021 | Price change | $2,100,000-2.3%$319/sqft |
Source: FLKMLS #596616 Report a problem | ||
| 7/12/2021 | Price change | $2,150,000-4.4%$326/sqft |
Source: FLKMLS #596616 Report a problem | ||
| 6/23/2021 | Listed for sale | $2,250,000$342/sqft |
Source: FLKMLS #596616 Report a problem | ||
Public tax history
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $8,516 -23.7% | $884,023 -27.7% |
| 2024 | $11,156 -30.7% | $1,222,352 -32.6% |
| 2023 | $16,109 +44.3% | $1,812,842 +47.9% |
| 2022 | $11,167 +65.6% | $1,225,564 +86.3% |
| 2021 | $6,743 +312.6% | $657,861 +379.5% |
| 2020 | $1,634 | $137,186 +2.3% |
| 2019 | $1,634 +1.4% | $134,102 +1.9% |
| 2018 | $1,612 +0.1% | $131,602 +2.1% |
| 2017 | $1,610 +2.3% | $128,896 +2.1% |
| 2016 | $1,574 -0.5% | $126,245 +0.7% |
| 2015 | $1,581 | $125,367 |
Find assessor info on the county website
BuyAbility℠ payment
Est. payment
$70,010/mo
Principal & interest
$61468
Property taxes
$8542
Climate risks
Neighborhood: 33037
Nearby schools
GreatSchools rating
- 8/10Key Largo SchoolGrades: PK-8Distance: 10.2 mi
- 4/10Coral Shores High SchoolGrades: 9-12Distance: 4.3 mi
Local experts in 33037
