A newly built waterfront compound on one of Miami Beach’s most tightly held islands is preparing to hit the public market with an $85 million price tag — but it’s already quietly circulating among a select group of West Coast tech buyers.
Known as Villa Tramonto and located at 1649 West 22nd Street, the bayfront estate sits on Sunset Island 4, one of four gated islands that together form one of South Florida’s most private residential enclaves.
The property is listed with Julian Johnston of The Corcoran Group and spans roughly 16,000 square feet of interior space on a prime west-facing lot with 152 feet of waterfront.
Still under construction, the estate is being positioned as both a design-driven architectural statement and a highly engineered waterfront residence built for long-term resilience.
A trophy position on one of Miami Beach’s most exclusive islands
Sunset Island 4 has long attracted buyers seeking privacy without sacrificing proximity to Miami Beach’s social core.
The gated island sits just inland from Biscayne Bay and remains within walking distance of Sunset Harbor’s restaurants, fitness studios, and marinas.
With direct bay frontage and clear sunset views
Villa Tramonto occupies one of the island’s most desirable positions, with direct bay frontage and unobstructed sunset views — a prized exposure in Miami Beach, where western-facing waterfront homes capture nightly skyline and water panoramas.
A newly built estate still offering customization potential
Because the property is currently under construction, a future owner will have the rare opportunity to influence final finishes and design elements.
That flexibility has become increasingly attractive to tech founders and executives relocating from California, many of whom prefer homes that can be tailored to their specific preferences rather than inherited as fully finished environments.
At 16,000 square feet, the estate offers enough scale to accommodate highly individualized living spaces without compromise.
Now being developed as a design-forward architectural statement
The property is being developed by Fred Karlton, a Miami Beach real estate investor who has positioned Villa Tramonto as his most ambitious residential project to date.
The design emphasizes clean modern lines, open bay views, and expansive indoor-outdoor living zones that respond directly to the waterfront setting.
Large terraces step down toward the bay, creating a layered transition between the home’s interior and the water beyond.
Built with elevated flood-resistant engineering
Beyond aesthetics, the estate has been engineered with flood resilience as a central consideration — a growing priority in Miami’s ultra-luxury market.
The structure incorporates reinforced construction methods and advanced water mitigation planning designed to address long-term climate and environmental risks.
For buyers investing at this level, engineering resilience has become as important as architectural design.
A private car gallery beneath the residence
One of the property’s most distinctive features sits below the main living levels.
A 6,000-square-foot understory space includes a climate-controlled automotive gallery designed to house eight or more vehicles.
The space, unfortunately not pictured in current renderings, functions as both secure storage and display, reflecting the growing overlap between luxury real estate and car collecting.
The level also includes space for a gym and storage, creating a self-contained lower floor that extends the home’s functionality.
AI-powered home management integrated throughout
Technology plays a defining role in the estate’s design.
The property will include Crestron automation alongside an AI-driven home management platform known as AI Josh, which can control lighting, climate, security, and entertainment systems.
The platform is designed to learn owner preferences and automate daily functions, creating an adaptive environment rather than one dependent on manual control.
A primary suite scaled like a private residence
The primary suite alone spans roughly 2,000 square feet and includes a sitting room, dual bathrooms, and expansive custom closets.
Positioned to capture bay views, the suite is designed as a private retreat within the larger residence.
With its own living room
At this scale, the primary wing functions more like a self-contained apartment than a typical bedroom suite.
And a bathroom with front-row sunset views
The luxe primary bathroom enjoys the same dreamy views, with floor-to-ceiling glass allowing residents to take in the pastel sunsets while they’re taking a bath or brushing their teeth.
Wellness and entertaining amenities integrated into the design
The residence also incorporates wellness features including a steam room and sauna, and ample space to entertain guests in style.
These elements reflect a broader shift in luxury housing, where health-focused amenities have become standard at the highest price points.
Outdoor living oriented toward sunset views
Outdoor living areas anchor the estate’s overall layout.
A double-deck infinity-edge pool faces the bay, with terraces arranged to maximize sunset views and waterfront access.
The outdoor spaces are designed to function as extensions of the interior rather than separate zones.
A gated enclave attracting increasing West Coast wealth
Sunset Island 4 has emerged as a favored destination for buyers relocating from California, particularly those connected to the technology sector.
The island’s privacy, waterfront access, and proximity to Miami Beach’s social and cultural hubs make it especially appealing to buyers accustomed to Silicon Valley and Los Angeles luxury markets.
Villa Tramonto’s early circulation among California buyers reflects that ongoing migration trend.
Positioned among Miami Beach’s most closely watched new listings
At $85 million, the property enters a rare tier of Miami Beach real estate, one that we’ve been seeing less of in recent months (compared to the year before).
But this one’s mix of new construction, substantial waterfrontage, advanced tech, and gated island location places it among the most significant listings coming out of South Florida.
A waterfront Florida setting reserved for the very view
As construction progresses and the property moves toward its public debut, Villa Tramonto is already drawing attention from buyers seeking newly built waterfront estates designed for both longevity and modern living.
And it’s easy to see why the Silicon Valley types, many of which have recently opted to make Florida their home to escape more pressing tax environments, would be attracted to the tech-savvy, modern home.
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