Gated bridges, deep-water docks and total privacy. Scattered across Biscayne Bay, Miami's private islands are home to some of the most coveted residences in the country. They offer something rare in a major city: quiet streets, guarded entrances and water on every side, just minutes from South Beach and downtown. Here is a guide to the enclaves buyers ask about most and what makes each one distinct.
Star Island
Reached by a single guarded causeway off the MacArthur Causeway, Star Island is a short ring of grand estates on generous lots. Many homes offer wide bay views, private docks for large yachts and complete seclusion behind mature landscaping. Inventory is extremely limited, and properties here often trade privately.
Palm Island and Hibiscus Island
Connected to each other and to the causeway by a gated entrance, Palm and Hibiscus Islands blend landmark estates with a surprisingly neighborly atmosphere. Residents walk and cycle along tree-lined streets, and many homes enjoy direct views of the downtown skyline or the Miami Beach shoreline. The islands offer a wider range of home sizes than Star Island, from renovated classics to new modern builds.
The Venetian Islands
Strung along the Venetian Causeway between Miami and Miami Beach, the Venetian Islands (Biscayne, San Marco, San Marino, Di Lido, Rivo Alto and Belle Isle) combine waterfront homes with easy access to both sides of the bay. Some islands are primarily single-family, while Belle Isle also offers high-rise condominiums with sweeping views.
Allison Island
Tucked along Indian Creek in Mid-Beach, Allison Island offers a gated mix of waterfront townhomes and condominiums with marina access, ideal for buyers who want island privacy without maintaining a large estate.
What to know before buying on an island
Seawalls and docks: ask for recent inspection reports and any permits for repairs or new dock work.
Elevation and insurance: review flood zones, elevation certificates and quotes for windstorm and flood coverage early.
Bridge clearance and water depth: essential if you own or plan to buy a large yacht.
Association rules: gated islands often have security fees, architectural guidelines and construction rules.
Privacy and access: visit at different times to understand traffic on the causeways and the feel of the island.
Why island homes hold their appeal
Waterfront land in central Miami is finite, and private islands sit at the very top of that scarcity. For many owners, the combination of security, water access and proximity to the city is simply impossible to find anywhere else.
If you would like a discreet overview of island properties, including homes that are not publicly marketed, I would be glad to prepare a private selection for you.
