'Come hell or high water': America's elite are snapping up multimillion-dollar homes in Nantucket — even though properties are sinking into the ocean at a stunning rate

'Leases with Mother Nature'

Nantucket’s housing problems are only expected to worsen in the future.

Over the next half-century, rising sea levels, coastal flooding and erosion are expected to cause over $3.4 billion in damage across the island, according to the local government’s 2021 Nantucket Coastal Resilience Plan. By 2070, over 2,300 buildings — of which, 84% are residential — will be at risk of coastal flooding or erosion.

But this hasn’t caused demand for housing to deteriorate. The median home sale price last year was a stunning $3.2 million, up from $1.9 million just five years prior, according to data from local company Fisher Real Estate. The firm also reported over a quarter of homes sold for over $5 million in 2023.

And some buyers are even purchasing properties that are mere years away from sinking into the ocean. Real estate agent Greg Mckechnie told Business Insider: "Those are properties we refer to occasionally as leases with Mother Nature."

While a few sellers are slashing their listing prices, some of the more picturesque areas have seen homes increase in value.

"When it comes to rising sea levels, the trade-off for the amenities, location and often views, people are willing to take on the mitigation that needs to be done," Mckechnie said. This could mean doing some home improvement work, like adding storm panels, or building at a higher level.

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There are expensive — and complicated — solutions

Some Nantucket homeowners are shelling out a small fortune to move their homes away from the coast, while others, like Sternlicht, are faced with no other option than to raze them down entirely.

Sternlicht originally planned to relocate his Cisco Beach home until Hurricanes Paulette and Teddy left him with no more space to move the property.

And one group of homeowners on Baxter Road embarked on a controversial project, installing “geotubes” — massive, cylindrical bags of sand designed to control erosion — along 900 feet of the shoreline, according to The New York Times.

The idea was conceived after a storm in 2013, and has cost residents an estimated $10 million to maintain over the years.

"It's not inexpensive, but it is worth doing," Baxter Road resident and housing developer Joshua Posner told the Times. "It's like another tax bill."

However, local groups have been fighting back and forth over the years over the long-term viability of the geotubes, which at one point were scheduled to be removed. The Conservation Commission, a regulatory board responsible for protecting wetland resource areas, has argued that engineered structures, including geotubes, can disrupt a beach’s natural behaviors and cause erosion to increase elsewhere, according to the Times.