Late Swarovski Billionaire’s Private Island Near Venice, Italy, Asks €24 Million
A family trust for Gernot Langes-Swarovski, great-grandson of the crystal company’s founder, is selling the 72-acre Isola Santa Cristina.
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A private island near Venice, Italy, that was owned by an heir to the Swarovski crystal fortune is set to hit the market for the first time in 40 years with an asking price of €24 million (US$28.3 million), Mansion Global has learned.
Isola Santa Cristina is in the northern part of the Venetian Lagoon, about a 40-minute boat ride from Venice. Drawn to the area’s fishing culture, Gernot Langes-Swarovski, the great-grandson of Swarovski founder Daniel Swarovski, acquired the island in 1986, according to Venice Sotheby’s International Realty, which is marketing the property.
The 72-acre island became a retreat for Gernot Langes-Swarovski, who valued sustainability and nature and maintained it with respect for those concerns.
In fact, the island’s fish farming has been redeveloped in collaboration with Venice’s Ca’ Foscari University, according to Sotheby’s International Realty.
“Gernot Langes-Swarovski’s passion for agriculture, heritage and ecology made his stewardship of Isola Santa Cristina extremely personal, forging relationships with local centres of excellence, such as Ca’ Foscari University, which shared his passion and view,” said Dr Christoph Völk, chair of the trustees of SEGNAL Privatstiftung, the private family trust selling the island.
Today, the island’s landscape still includes much of Langes-Swarovski’s additions: apricot and plum orchards; an olive grove, roughly 7 acres of vineyards producing Merlot, Chardonnay and Cabernet grapes; a vegetable garden; and beehives that produce organic salt marsh honey.
In addition to being involved in the family business, Gernot Langes-Swarovski co-founded business jet operator Tyrolean Jet Services. In 2014, Forbes estimated he had a net worth of $1.3 billion. He died in 2021 at the age of 77.
After his death, ownership of the island was transferred into a family trust, and the property was previously operated by Gernot Langes-Swarovski’s stepson René Deutsch and his wife, Sandra, as a luxury retreat with “a limited number of bookings per year,” according to the island’s website.
The historic villa spans 9,250 square feet across four floors, and includes nine bedrooms, nine bathrooms, two reception rooms, a formal dining room and a chef’s kitchen, plus air conditioning throughout. A crystal chandelier remains in the villa as a nod to Langes-Swarovski’s stewardship of the island.
Outdoor features include a veranda with a large dining space and an open-fire rotisserie and grill; an altana, a traditional Venetian roof terrace; and a heated saltwater pool. A path from the villa leads down to a dock and boat house, and there’s also a mooring for up to five boats.
Across a pond from the main house, there’s a 6,080-square-foot farmhouse with two bedrooms, two bathrooms, a kitchen, a living room and a yoga studio, as well as a self-contained apartment, also with two bedrooms, two bathrooms and a kitchen.
The family trust has continued to invest in the island in keeping with Langes-Swarovski’s eco-friendly ideals, according to information provided by the brokerage.
Most recently, they’ve planned the installation of a new €2 million-plus Centro Tecnologico, a facility that will support the island’s technical services, water management and storage of agricultural equipment.
“The time is now right for stewardship of Isola Santa Cristina to pass to a new custodian,” Völk said, “who appreciates the uniqueness of the location and whose passion for ecology and the lagoon will ensure its future.”
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The 1860s Darlinghurst mansion Stoneleigh could become Sydney’s most expensive home ever sold under the hammer when it goes to auction. Clint Ballard is giving buyers a $28 million guide for the heritage-listed mansion on Darley Street, opposite Iona, the former home of Hollywood royalty Baz Luhrmann. Stoneleigh is being offered for sale for the …
Set on one of the city’s last absolute riverfront sites, The Riversdale by Mosaic combines irreplaceable waterfront ownership with one of Brisbane’s most significant residential opportunities.
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At the northern tip of Point Piper, hidden from the street and positioned directly on Sydney Harbour, “Radford” combines cinematic views, rare waterfront access and a fascinating connection to one of Australia’s most storied estates.
The five-bedroom residence occupies land once belonging to Paradis Sur Mer, the celebrated three-block waterfront estate that made Australian property history in 1982. The original mansion became the country’s first home reported to have sold for more than $5 million—and may also have inspired one of its fastest and most profitable resales.
Property developer and yachtsman Bernard Lewis purchased the estate at auction for $5.25 million, only to sell it within hours to English betting magnate and thoroughbred breeder Robert Sangster. Lewis reportedly made a $500,000 profit in the process.
Sangster renamed the property Toison D’Or—French for “Golden Fleece” and the name of one of his racehorses—and established it as a Sydney base with his then-wife, Susan. The estate subsequently changed hands and identities again, becoming Paradis Sur Mer, or “Paradise on the Sea”, during Susan’s marriage to financier Sir Frank Renouf.
After another headline-making sale near the peak of Sydney’s late-1980s property boom, the original mansion was eventually demolished and the waterfront holding subdivided. “Radford” now stands on one of those prized parcels, carrying a thread of that extraordinary history into the present day.
Harbour views take centre stage
Designed by award-winning architect Victor Berk and constructed in the early 1990s, the three-level modernist residence has been planned around its exceptional position.
Panoramic views stretch from the Sydney Harbour Bridge across Shark Island and Rose Bay to Manly. A prized northerly aspect fills the home with natural light, while bedrooms and living spaces open to decks, balconies and terraces overlooking the water.
The main living areas flow to a broad alfresco entertaining terrace, sunny swimming pool and level harbourfront lawn. Beyond the garden, a private jetty completes the quintessential Sydney waterfront lifestyle.
Inside, generous proportions make the home equally suited to private family life and large-scale entertaining. The formal dining area can accommodate up to 14 guests, while a Gaggenau-appointed kitchen incorporates an island, walk-in pantry and casual breakfast area opening to the poolside deck.
A fireplace anchors the principal living space, complemented by high ceilings, travertine floors and expansive glazing that keeps the harbour present throughout the home.
A private sanctuary on every level
The main bedroom is accompanied by two walk-in wardrobes, a sitting area and an ensuite featuring a spa bath, separate shower and twin basins. Three further bedrooms each have an ensuite, while a gym with its own kitchenette, built-in storage and bathroom can serve as a fifth bedroom or private guest retreat.
Additional spaces include a fitted home office, an upper-level family area, sauna, two powder rooms and a substantial laundry. A lift connects all three levels, and the central staircase sits beneath an atrium-style glass roof fitted with an electric retractable blind.
Ducted and zoned air-conditioning, extensive storage and a security alarm add everyday practicality. Internal access leads to an oversized secure double garage, with additional driveway parking.
Set in an elite cul-de-sac on one of Australia’s most prestigious waterfront streets, “Radford” is close to Lady Martins Beach, Prince Edward Yacht Club, the Royal Motor Yacht Club, Rose Bay’s marinas and leading schools. Double Bay’s restaurants, boutiques and village amenities are only minutes away.
It is an exceptional harbourfront residence in its own right—but its connection to the record-breaking Paradis Sur Mer estate gives it a place within the wider story of Sydney real estate.
Property details
Address: Wolseley Road, Point Piper, NSW
Bedrooms: Five, including a flexible gym or guest suite
Bathrooms: Five, plus two powder rooms
Parking: Oversized double garage and additional driveway space
Key features: Northerly aspect, panoramic harbour views, private jetty, swimming pool, level waterfront lawn, lift, sauna, home office and Gaggenau kitchen
Architect: Victor Berk
Agents: Michael Pallier, Sydney Sotheby’s & Brad Pillinger, Pillinger
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