6 Private Islands for Sale That Redefine Waterfront Living

For buyers who believe even an oceanfront estate does not provide quite enough privacy, there is another level of waterfront real estate: owning the entire island.

Private islands currently on the market range from fully developed tropical retreats with pools, docks, and guest residences to sprawling properties with the potential to create an entirely new destination. Some offer easy access to international airports and established communities, while others embrace the appeal of arriving only by boat, helicopter, or seaplane.

From the Florida Keys to the Bahamas and Greece, these six islands offer very different interpretations of life surrounded by water.

Royal Island, Eleuthera, Bahamas | $45 Million

At more than 400 acres, Royal Island offers the scale of a destination unto itself. Located off Russell Island in North Eleuthera, the private island combines more than 10 miles of ocean frontage with an existing luxury resort operation, all less than 20 minutes from North Eleuthera International Airport.

Five beachfront villas provide private accommodations, while additional amenities include a spa and fitness center, restaurant and bar, guest house, beach club, and oval swimming pool. For a buyer looking beyond the island’s existing footprint, Royal Island also comes with approved plans for a marina and an 18-hole Jack Nicklaus golf course, creating the potential for significant future development.

Despite its scale, access is relatively simple. The island is approximately 40 miles northeast of Nassau and about a 15-minute boat ride from North Eleuthera.

Crown Pigeon Island & Cays, North Eleuthera, Bahamas | $39.5 Million

Just 1.6 miles from Harbour Island, Crown Pigeon Island & Cays delivers a more intimate version of private-island living. The 11-acre property is already developed as a turnkey estate, with 15 bedrooms, 15 bathrooms, and approximately 12,000 square feet of living space spread across multiple residences and guest accommodations.

Three beaches frame the island, while the residences are positioned to take advantage of sweeping views across the surrounding turquoise water. Pools and generous outdoor entertaining areas reinforce the indoor-outdoor lifestyle, while a protected harbor, extensive dockage, helipad, and private island golf course add to the property’s amenities.

Its location is another advantage. North Eleuthera International Airport is approximately three miles away, allowing owners and guests to move between private-island seclusion and major transportation connections with relative ease.

Argyronisos, Greece | €35 Million

For buyers drawn to history and Mediterranean character, Argyronisos offers a striking contrast to the tropical islands of the Caribbean. Set in the northern Aegean Sea between Euboea and mainland Greece, the approximately 60-acre island has been held by the same family since 1961.

Rather than a contemporary resort compound, the property is defined by 11 stone buildings that include a main residence, villa, cottages, an olive house, and a chapel. Whitewashed architecture and blue accents complement a landscape of ancient olive trees, cypress groves, wildflowers, rocky beaches, and secluded coves.

A deep-water dock provides marine access, while solar power and a backup generator help make the island largely self-sufficient. The property could remain a private family retreat or offer possibilities for a future hospitality or commercial concept.

Leaf Cay, Exuma Cays, Bahamas | $15.9 Million

Set approximately two miles west of Staniel Cay, Leaf Cay pairs the privacy of a 14-acre island with proximity to one of the Exumas’ best-known destinations.

The developed island includes three beaches, a main residence, guest accommodations, and a substantial dock, creating a ready-made base for boating and exploring the surrounding Exuma Cays. Unlike many remote islands that rely entirely on independent power generation, Leaf Cay is connected to electricity from nearby Staniel Cay through an underwater cable.

Its $15.9 million asking price also positions it well below several of the larger Bahamian offerings currently on the market, while still providing the defining luxuries of private-island ownership: beaches, boating access, privacy, and water in nearly every direction.

Bannon Island, Florida | $12 Million

Bannon Island brings history to the private-island market. Located on Lake Marion in Central Florida, the approximately 23-acre island has remained within the same family for generations and has now been offered for sale.

The island’s story stretches back to the 19th century, when Irish carpenter Thomas Bannon established a home there. Today, multiple residences occupy the property, but its unusual setting remains a defining part of its character.

With no bridge connecting it to the mainland, arrival is part of the experience. The island is accessible by boat, helicopter, or seaplane, providing a level of seclusion that is increasingly difficult to find within Florida.

East Sister Rock Island, Florida Keys | $16 Million

Just off the coast of Marathon, East Sister Rock Island captures the fantasy of Florida Keys living on an entirely private scale. The approximately 6.5-acre property includes roughly 5.8 acres of privately held surrounding seabed, creating an aquatic playground for swimming, snorkeling, kayaking, paddleboarding, and fishing.

At the heart of the island is an updated three-bedroom, two-bath main residence accompanied by a separate guest house, with more than 5,000 square feet of living space. A 12-foot-wide wraparound veranda takes advantage of panoramic Atlantic views, from sunrise over the ocean to the Keys’ famously colorful sunsets.

Outdoor living is equally central to the property. A waterfront pool and spa are surrounded by tropical landscaping and dedicated areas for lounging and alfresco dining, while a 100-foot deep-water dock accommodates multiple vessels. Owners and guests can arrive by boat or take a more dramatic approach via the island’s private helipad.

Designed to operate independently, East Sister Rock Island uses solar and wind power systems and other infrastructure to support a self-sufficient lifestyle. The combination of an established residence, private seabed, deep-water access, and proximity to Marathon makes it a particularly unusual opportunity within the Florida Keys.

The Ultimate Waterfront Address

Private-island ownership can mean very different things. Royal Island offers the scale and infrastructure of a private resort, while Argyronisos draws its appeal from generations of history and an unspoiled Mediterranean landscape. Leaf Cay and Crown Pigeon Island place owners amid some of the Bahamas’ most coveted waters, while Bannon Island demonstrates that extraordinary seclusion can also be found closer to the mainland.

East Sister Rock Island may capture the idea most familiar to Ocean Home readers: a waterfront residence taken to its logical extreme. Instead of choosing a home with an ocean view, private-island ownership makes the water itself part of the address.

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