Nantucket: The Island That Got Rich, Burned, and Never Changed

In September 2023, the Barstool Sports founder Dave Portnoy paid $42 million for a house on an island that America once left for dead. The deed covered two waterfront lots on Monomoy Road, about 1.2 acres, with roughly $2 million of the price accounted for by the furniture inside. It was the highest residential sale in Massachusetts history at the time, done quietly, off market. The strange part is not the number. It is where he chose to spend it. Two hundred years ago, Nantucket was the richest whaling port on earth. Then it burned, emptied, and went broke, and the reason it is so valuable now is that it stayed broke for a long time.

How Did a Small Sandbar Island Become the Whale-Oil Capital of the World?

Whale oil was the petroleum of its day. Before kerosene and the electric bulb it lit the lamps, lubricated the machines, and made the clean, smokeless flame that cities paid a premium for. Nantucket, thirty miles out to sea and blessed with almost nothing else, learned to hunt it better than anyone. By the 1820s its ships were rounding Cape Horn and staying out for years at a time, and the money that came back built the brick mansions on Main Street.

At its peak the island held 9,012 people in the 1840 census, and here is the thing the legend skips. The crown was already slipping before disaster struck. By the mid-1830s the mainland port of New Bedford, with its deep harbor and rail connections, had overtaken Nantucket in tonnage and catch. The island was still famous and still rich, but no longer number one, and the thing that would finish it was already sitting at the mouth of its own harbor.

What Actually Killed Nantucket's Whaling Industry?

The popular story says petroleum killed whaling. It did not, at least not here. Edwin Drake drilled the first commercial oil well in Pennsylvania in 1859, and by then Nantucket whaling was already essentially dead. The Nantucket Historical Association is explicit about this. Petroleum arrived at the funeral, not the murder.

What actually strangled the island was its own harbor. A sandbar had built up across the entrance, and as whaleships grew larger they drew fourteen to sixteen feet of water, too deep to cross the bar fully loaded. Crews had to offload cargo onto smaller boats, or float ships over on enormous wooden pontoons called camels, a slow, expensive workaround New Bedford did not need. Deep water was destiny, and Nantucket did not have it. Then came the fire, then the Gold Rush, then the war, and each one took a piece.

How Did a Fire Burn on Top of the Water?

It began around eleven at night on July 13, 1846, in a defective stovepipe behind William Geary's hat shop, at the end of a hot, dry summer. Two volunteer companies reached it at the same moment and argued over which of them would put it out. While they argued, the flames went through the roof. Within the hour the business district was gone and residents were dynamiting their own buildings to make firebreaks the fire stepped straight over.

Then it reached the waterfront, where the wharves, ropewalks, cooperages, and warehouses were soaked in oil and caked with pitch. The casks burst in the heat. The oil ran out across the surface of the harbor and caught.

The harbor itself was on fire.

Fred Elijah Coffin, who watched it and set it down in 1912, called it "the rare sight of the harbor on fire." He wrote that "many barrels of whale oil on the wharves had burst, and their contents flowed out over the water of the harbor and there, taking fire, presented the grand spectacle of the sea on fire." By dawn a third of the town was ash, somewhere between 250 and 500 buildings, along with the wharves and the oil works. No one died. Roughly 800 people had no home to go back to. The island had been consumed, in part, by the very product that made it rich.

The blocks were rebuilt. But for a town already losing its edge to a deeper mainland port, spending its last capital just to stand still was less a setback than a verdict.

How Did 10,000 People Shrink to 3,000?

The exodus was quick and young. Word of California gold reached the island in late 1848, and Nantucket, a town full of men who already knew how to leave home for years and cross oceans, emptied toward the goldfields. The Nantucket Historical Association counts more than 650 Nantucketers gone to California between October 1848 and December 1849 alone, with uncounted others following in the years after. More than forty whaleships were pulled out of whaling entirely and refitted to carry passengers and freight west. The Civil War then took roughly 400 more men and most of what remained of the fleet.

Add it up and the population fell from 9,012 in 1840 to 4,123 by 1870, and kept sliding for another forty years, down to 2,962 by 1910. What was left was a beautiful, underused town with grand houses, cobblestone streets, and no economy to justify tearing any of it down. That poverty is the most important fact in the island's history. There was never enough money, and never enough reason, to modernize, so Nantucket stopped somewhere around 1846 and stayed stopped, the clearest case in America of a place preserved by accident.

Who Decided That Fewer, Richer Visitors Would Save the Island?

By the mid-twentieth century Nantucket was a faded summer spot drifting toward the fate of any cheap seaside town: day-trippers, snack bars, T-shirt shops. The man who changed its direction was Walter Beinecke Jr., an heir to the S&H Green Stamps fortune, who from 1963 onward, through his company Sherburne Associates, began buying the waterfront and the commercial core. He acquired more than 150 buildings downtown, rebuilt the wharves, and roughly tripled the number of yacht berths. His theory was blunt and, to many locals, offensive: the island should serve fewer people who spent more, rather than more people who spent little.

He acted on it, declining to renew a dock lease for one steamship line out of Hyannis and pressing the other to carry fewer passengers at higher fares. His summary of the strategy became famous on the island. Instead of selling a visitor "six postcards and two hot dogs," he said, the goal was to sell "a hotel room and a couple of sports coats."

The argument never really ended. To his admirers, Beinecke rescued a decaying town, funded the preservation that saved its architecture, and gave the island the high-value economy that now pays to protect it. To his critics, he engineered economic exclusion, using leases and fares to price out the ordinary families who had always come. Both are true at once, which is why islanders still argue about him. A single wealthy actor quietly buying up a place and reshaping who gets to be there is a recurring story, from Howard Hughes methodically buying up Las Vegas to the one bet that saved Monte Carlo.

Why Does a Brand-New Mansion Have to Look Like 1846?

In 1966 the entire island was designated a National Historic Landmark, and building is governed by a Historic District Commission that reviews what you can put up and what it can look like. The popular version of the rule says new mansions "must look like 1846," which is true in spirit if loose in letter. The Commission does not force you to build a museum replica. It requires compatibility, in scale, in massing, in proportion, with cedar shingle strongly preferred and roof colors chosen from an approved list.

On an island that essentially stopped building in the 1840s, the practical effect of "must be compatible with what is already here" is very close to "must look like it was always here." That is why a $40 million new build and a 180-year-old whaling captain's house can sit on the same lane and read as siblings. The uniformity is not nostalgia for its own sake. It is the machinery that keeps the island scarce, and scarcity is the whole product. It is the purest expression of quiet luxury in America, a place where the flex is that you cannot tell what anything cost.

What You Actually Want to Know

Is Nantucket worth visiting if you are not buying a $42 million house?

Yes, and that is the point. The rules that make the island punishing to own make it extraordinary to walk through, and the cobblestones, the shingle, and the harbor light cost a visitor nothing.

When should you go?

July and August are the months everyone else has already chosen. September is the island's open secret: warm water, thin crowds, softer rates, and the good restaurants still open and finally able to seat you.

How do you get there?

There is no bridge. You take the ferry from Hyannis or a short flight in, and the small friction is part of the filter, exactly as Beinecke intended.

Is it only for the ultra-wealthy?

Ownership is, increasingly. Visiting is not. Everything that makes Nantucket Nantucket, the history, the architecture, the light off the water, is available to anyone with a ferry ticket.

Nantucket got rich, then ruined, then too poor to change, and by the time anyone had money again the only thing left to sell was the ruin itself, perfectly preserved. Portnoy did not pay $42 million for a house. He paid it for a moment in time that an island accidentally kept. Noon's advisors know which lanes, which inns, and which weeks make the island feel like it did before the money arrived. Ask us to build you a week in September, after the crowds thin and before the kitchens close.