The Newest Must-Have Home Amenity for the Rich: Purified Air
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The Newest Must-Have Home Amenity for the Rich: Purified Air

Pollution, allergens and Covid have homeowners focusing on filtration systems and flexible designs to improve indoor air quality

By ALINA DIZIK
Thu, Mar 7, 2024 9:07amGrey Clock 7 min

Visitors to John Bautista and Pedro Salrach’s San Francisco home can’t get enough of the lap pool, sauna and movie theatre. But they also get a whiff of something else they value: clean air.

“The house smells new—and after two years it still smells new,” said Bautista, an attorney. “I know when I’m home because it smells clean and fresh.”

The Glatts’ Maryland home has five HVAC units and eight thermostats to regulate air quality in individual zones. They also added UV lights to the system to prevent mould.
MELISSA LYTTLE FOR THE WALL STREET JOURNAL (4)

The six-bedroom home with seven bathrooms and two half-baths includes an elaborate air-filtration system meant to deal with the region’s varying air quality. The tightly sealed floor-to-ceiling windows and sliding doors offer hilltop views of the bay and access to the backyard without sacrificing air quality.

Bautista plans to further upgrade his system this year with the aim of filtering and recirculating indoor air rather than fresh outside air during periods of heavy pollution. Despite the home’s superior air quality, the family can still feel a difference on days when the outdoor air is filled with smoke. “We’ve suffered, as most people have in the Bay Area,” he said. “What we want to have is isolation.”

Developer Gregory Malin, who specialises in wellness-focused real estate, sold Bautista the home for $32 million, he said, plus an additional $5 million for fixtures and furnishings.

The Glatts gave priority to air quality in their $2.5 million home. PHOTO: MELISSA LYTTLE FOR THE WALL STREET JOURNAL

Luxury homeowners are known to splurge on sleek kitchens, custom decor and art, but they are increasingly turning their attention to something less visible. Forest-fire smoke, the pandemic and increased awareness of sensitivities to mould and other irritants are making their interior environment a priority.

Many are investing in complex systems and flexible designs that promise healthier indoor air but still include spaces, such as glass-enclosed rooms, that make being indoors feel natural.

Listings are increasingly touting pollution-fighting amenities to lure home buyers. In Santa Rosa, Calif., a 13-acre estate for sale at $15 million has a whole-home air purifier. This spring, the Dovecote building, under construction in Manhattan’s Harlem neighbourhood, will offer six, three-bedroom condos built to strict green and clean-air standards, starting at $1.5 million.

Malin, founder of Troon Pacific, a San Francisco-based developer of $15 million to $45 million properties that he calls healthy homes, said he focuses on the smallest details that can affect air quality. New tools allow for more-precise measurement of various particulate matter and carbon dioxide levels, he added. “Covid changed people’s perspective on connecting air quality to health, and the [wildfires] only enhanced that.”

The Bautista home has windows and doors that shut tightly so unfiltered outdoor air doesn’t seep in. PHOTO: JACOB ELLIOTT/TROON PACIFIC

 

The home has views of San Francisco Bay, Alcatraz Island and the Golden Gate Bridge. While the area’s air quality is generally good, wildfires cause spikes in air pollution. PHOTO: JACOB ELLIOTT/TROON PACIFIC

His company’s newer homes have exhaust fans, tied to ventilation systems, in laundry rooms and under sinks, where there are various pollutants and harmful cleaning products, said Malin. Their garages have separate exhaust fans that go on long enough for three air exchanges after the door opens. Ionisation-based filtration systems also are included to eliminate airborne particles too tiny to see but hazardous when inhaled.

His homes also feature perforated piping with in-line fans to exhaust air from under slab foundations to keep contaminated soil vapours from entering the houses.

He said his company is considering building to the Living Building Challenge standard, in which homes have their own electricity, water and waste management. Demand is high for such standards, he said, including passive-home construction, where airtight homes are built using specific materials and energy-efficient systems that circulate highly filtered air. He said passive-home certification is costly, especially for big homes, and has limitations that some homeowners don’t want, like bulky windows. In the long run, however, he said eliminating most heating and cooling bills is probably worth it.

Caroline Smythe used hemp block to build a more breathable home in Charleston, S.C. The building material absorbs moisture and keeps humidity steady in the home to prevent mold growth.
HADLEY HENRY FOR THE WALL STREET JOURNAL (4)

Clean air has become more of a talking point in homeownership, added Elliott Gall, an associate professor of mechanical and materials engineering who researches indoor-air quality at Portland State University.

While high-rises are often built to be airtight, there is a greater focus now on having windows that open while adding better filtration systems, he said. Units with outdoor access sometimes give homeowners another way to control the humidity and indoor air-pollution levels inside the home, he added.

To improve the air quality in her new Charleston, S.C., home, Caroline Smythe, 67, imported a hemp block covered in a mixture of lime and sand for the construction, rather than standard brick. Living in a high-humidity area means moisture can cause mould, said Smythe, whose 2,400-square-foot Lowcountry home was completed in 2023 for about $1 million, including $250,000 for the land.

Incorporating the new material allows the moisture to get absorbed in the walls and keeps humidity steady in the home. “It has very much an earthy feel,” said Smythe of her thick, soundproof walls.

Inside, the home’s two bedrooms and two offices have additional air-filtration elements, including stand-alone air filters for each bedroom. Smythe, a psychiatrist, chose a bamboo kitchen countertop and mineral-based wall paint to prevent any chemical off-gassing. “It makes a huge difference,” she said.

Homeowners have long tried to improve air quality. In the early 1900s, homes that let in fresh air were critical to good health, but by the 1950s some owners were trying to tame outdoor air pollution by focusing on better insulation. More recently, the pandemic made access to outdoor air essential, and turned the focus again to indoor-outdoor living.

Today’s picture is mixed. Climate change has made outdoor air quality less reliable, with the added problems of prolonged forest fires.

Many people are realising their indoor air quality is often compromised by a combination of poor indoor airflow, activities like cooking and cleaning, and outdoor pollutants that settle into confined spaces, said Gall. Homeowners now want better control over their wider living space, including modifiable systems that deal with both indoor and outdoor pollution, he added.

In Manhattan, the Charlotte of the Upper West Side has seven full-floor units. A heating-and-cooling system filters fresh air directly into each unit. The air is also treated with UV light. PHOTO: JOSHUA MCHUGH

Jason Glatt, a commercial window contractor, and his wife, Lauren Glatt, a stay-at-home mom, of North Bethesda, Md., built a $2.5 million home that includes a children’s slide into a basement playroom, an attic-level cigar room and plenty of entertaining space.

The 11,000-square-foot home’s most striking feature, however, may be the five HVAC units tucked inside utility closets and other closed rooms, controlled by eight thermostats that regulate the air quality as well as temperature in each part of the home. Their $120,000 HVAC system also includes UV lights to prevent mould.

Seth Ballard, an architect who worked with the Glatt family, said individually controlled temperature zones and more return-air vents promote better air flow. Costs can be $100,000 to $200,000 for a 10,000- to 15,000-square-foot house. “They are choosing this over a kitchen countertop,” he said of homeowners in general.

The Charlotte’s air-filtration and passive-home construction added an estimated 15% to building costs. PHOTO: CHRISTOPHER PAYNE/ESTO
Contact: kristen@m18pr.com

Charlotte of the Upper West Side, a building in Manhattan that opened in 2023, has seven full-floor units, each with a private entrance. The building has airtight construction with enhanced insulation. Each unit has an independent heating-and-cooling system with fresh-air filtration directly into the home that isn’t shared with other spaces.

The system can achieve full air exchange 13 times a day in normal-use mode and more than 28 times a day in boost mode, said the building’s developer John Roe of the New York-based Roe Corp. The building uses louvers outside the windows to deflect the heat of the sun and cut energy use on summer days.

Roe, who lives in one of the building’s 3,570-square-foot, four bedroom, 4.5-bathroom homes, said the air-filtration system and strict passive-home construction added 15% to the building cost.

Three of the building’s units are on sale, from $8.35 million to $17 million.

He said there is little dust in the home, and he swears it now takes longer for his cut white hydrangeas to wilt.



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The Super Rich Have Turned the Tiny Florida Town of Manalapan Into the Next Palm Beach

Can its real-estate market continue to rise amid stock-market turmoil?

By Katherine Clarke
Thu, Apr 24, 2025 7 min

MANALAPAN, FLA.— The Deal-Closer. That’s what real-estate agent Jack Elkins jokingly calls the Hinckley picnic boat he docks on the Intracoastal Waterway in the Florida community of Manalapan.

From the road, many of Manalapan’s mansions are shrouded by plantings and foliage, but they are clearly visible from the water, Elkins explained. A boat ride is often the best way to show properties to the wealthy buyers now flocking to the tiny town.

On a recent afternoon, Elkins cruised down the Intracoastal in the The Deal-Closer, passing mansion after mansion, most with their own docks. “When I was a little kid, almost all of this was jungle,” said Elkins, 46, who spent much of his childhood in the area. “There were foxes and parrots and all these wild animals.”

Manalapan, a roughly 2.4-square-mile town with a population of about 400, is just south of glitzier Palm Beach.

While Manalapan has long drawn moneyed residents such as the singer Billy Joel, it has historically lacked the prestige—and price tags—of Palm Beach. That has changed dramatically over the past five years, however, thanks to a series of major home sales.

In 2022, for example, Oracle billionaire Larry Ellison paid $173 million for a historic Manalapan estate. And David MacNeil, the founder of the automotive-accessories manufacturer WeatherTech, has spent a combined $94 million over the past year on a pair of neighboring sites, with plans to build a megamansion there.

“People like Larry Ellison and David MacNeil, these individuals can afford to buy real estate anywhere in the world,” said local real-estate agent Nick Malinosky of Douglas Elliman . “Manalapan is not a second choice for them. It’s their first choice.”

On South Ocean Boulevard, Manalapan’s most affluent corridor, about 21 homes have traded for more than $20 million each since 2020. At least six have sold for $40 million or more, up from only one in that price range during the previous five years.

In 2021, eBay billionaire Jeffrey Skoll bought an ocean-to-Intracoastal estate for $89.93 million, while Joel’s longtime home sold last year for $42.6 million.

Now, however, it is unclear whether Manalapan’s hot streak can continue. Like luxury markets across the country, the town is contending with stock-market turmoil and the fallout from President Trump’s tariffs.

Like many Manalapan residents, local developer Stewart Satter, who is listing a yet-to-be-built spec home for $285 million, is a Trump supporter. During the 2024 election, Satter flew a giant Trump flag above the site.

But tariffs have “created a tremendous amount of uncertainty at the minimum, and that is not good for business,” Satter said. “It’s not good for real estate. People say, ‘Let’s wait. We’re not going to buy a house, we’re not going to build a house.’”

Hitting the big time

Elkins’ cuddly Native American Indian Dog, Bear, lounged on The Deal-Closer’s blue-and-white-striped seats as the boat zipped along the Intracoastal, passing glassy modern mansions and traditional Mediterranean estates.

To catch a glimpse of Ellison’s roughly 16-acre oceanfront estate, Elkins guided the Hinckley through the Boynton Inlet into the choppy Atlantic, where the sandy beach in front of Ellison’s property was visible.

Known as Gemini, the gargantuan mansion was once owned by the late publishing magnate William B. Ziff Jr., who brought in large plantings and trees from South America for the landscaping.

“When I was a little kid, barges were going by our house with these huge trees,” Elkins recalled.

Ellison has approved plans to add more homes to the estate. He also paid about $277 million last year for Manalapan’s Eau Palm Beach Resort & Spa, home to the members-only La Coquille Club, and talk is rife about how Ellison might upgrade the property. Ellison didn’t respond to requests for comment.

It’s a strange feeling, Elkins said, to see Manalapan hit the big time.

Before Covid, the town was often confused with its namesake: Manalapan, N.J. Tiny compared with Palm Beach, Manalapan developed much more slowly than its famous neighbour. It lacks the commercial infrastructure of Palm Beach, and its low-density zoning has kept it largely free of major condos or resorts.

When Satter, the developer, bought four empty lots in Manalapan in 2005, parts of the town looked like “just a mess of woods,” said his wife, Susan Satter. “I said, ‘Is this really how we want to invest our money?’”

Over the next decade, her husband built spec homes on three of the lots and sold them for a significant profit. He kept one, building a mansion there for himself and his wife.

“I thought I’d discovered a really special place,” said Stewart, who tested products for Walmart before turning to spec-home development. “If I had known what was going to happen, obviously, in the rear view mirror, I would have bought the whole town.”

The buyers of Satter’s projects include Ron and Cindy McMackin, who paid roughly $39 million in 2020 for a roughly 15,500-square-foot waterfront house with six bedrooms, then expanded it.

The couple, founders of the mechanical subcontracting company Pan-Pacific Mechanical, had relocated from Hawaii to South Florida during COVID.

“We knew nothing about Manalapan when we moved here,” said Ron, 78. He and Cindy were in the process of moving into a Palm Beach property they owned when their real-estate agent, Lawrence Moens , called. The actor Sylvester Stallone was searching for a home amid the Covid-induced real-estate frenzy, and wanted to see their house.

Before they knew it, they had agreed to sell to the “Rocky” star for $35.375 million, 33% more than the $26.65 million they had paid two years earlier.

This left them without a house. It was slim pickings in Palm Beach, and with five children, they needed plenty of space. Moens suggested Manalapan. At the time, the less-flashy choice was surprising to some of their Palm Beach friends. “I did hear a couple of times from people after that, ‘Why would Lawrence take the McMackins to Manalapan?’” said Ron.

But the McMackins love that it is quieter than Palm Beach, with less traffic. The couple have Sunday dinners with their neighbours, and Cindy has a small group of girlfriends who call themselves the “Manalapan mafia.” The McMackins like it so much that they are building a new, larger home along the same stretch.

Food-service entrepreneur Bob Carlucci and his wife, Aileen Carlucci, paid $11.63 million in 2020 for a roughly 13,000-square-foot Manalapan mansion on the Intracoastal, with a small beach house on the ocean. They are happy to have “discovered Manalapan early, ” Bob said.

Many buyers are tearing down older homes to build new mansions, Malinosky said. Before COVID, Manalapan was seen as more of a vacation destination, so buyers weren’t as choosy. Now that many are seeking full-time homes, however, “they want to make sure that it has the spa, it’s got the 12-car garage, it’s got the fitness centre, it’s got the wellness centre.”

Another prized amenity is a tunnel that runs underneath Highway A1A. Portions of the town are on a barrier island, and some homes sit on the ocean, requiring residents to cross the busy road to reach their docks on the Intracoastal.

Other estates are on the Intracoastal but have small beachhouses on the ocean. A tunnel allows residents to easily go from one side to the other.

Construction of these tunnels has become a rare point of contention between residents. In January, one couple asked the town commission to stop their neighbors from digging under the highway during the tourist season, claiming it was causing traffic to back up.

Building on the coast comes with challenges. Florida building code now requires roofs, windows and doors in high-risk areas to withstand winds of up to 170 miles an hour, according to builder Robert Burrage, who is building MacNeil’s home and four others in Manalapan.

Satter said the property insurance on his personal residence in Manalapan doesn’t include coverage for hurricane damage because it was too expensive. In addition to the annual premium, which was about $150,000 a year, he would have faced a deductible on hurricane damage of about 10% of the assessed value of the house.

He isn’t concerned with rising sea-levels, however. “When I bought my first oceanfront lot, my late father-in-law said, ‘What the hell are you doing? Don’t you know about global warming?’” Satter said. “I sold it at a huge number [in 2016] and made a lot of money. It’s been sold again and again and again—and the water hasn’t done anything.”

Stock market slide

Manalapan’s proximity to Mar-a-Lago has added to its popularity since Trump’s election to a second term, Malinosky said. Many residents support Trump. In the McMackins’ home, a bedazzled MAGA purse hangs in Cindy’s closet and a photo book in the living room shows her attending a Trump event at Mar-a-Lago, where they are members.

But the trade war and stock-market volatility have injected uncertainty into the real-estate market.

Until recently, Hamptons home builder Joe Farrell was considering paying more than $30 million for a building site in Manalapan, he said. He has decided to hold off on any acquisitions for now, however, because of the tariffs and resulting stock-market fallout.

“The market seems to still be pretty good, but people are maybe a little more cautious about parting ways with liquidity,” Farrell said. “I want to see things stabilize before I commit to that kind of capital outlay.”

Elkins said one of his clients considered backing out of a $10 million deal over the last few weeks on Point Manalapan, but decided to move ahead to avoid forfeiting the deposit.

Malinosky said he still sees significant demand for big-ticket properties in Manalapan, especially since many wealthy people are taking money out of the stock market. He said he has closed more than $150 million in deals in the greater Palm Beach area over the past two weeks.

Even with the uncertainty, “there is no shortage of buyers that will spend $100 million right now in Manalapan,” he said.

Shelly Newman, an agent with the Corcoran Group, said she recently sold a piece of land to a spec-home developer for $25 million. And the McMackins are moving ahead with plans to complete their new house, though tariffs have been “the talk of the town,” Ron said.

“I do have a stock portfolio and it is down,” he said. “But I don’t let that affect what I’m doing. We’re very fortunate with resources.”

While Satter agrees with efforts to bring manufacturing back to the U.S., he said he has been blindsided by the extent of the trade war. “I’m not sure about how they’re rolling it out,” he said.

A handful of potential buyers have expressed interest in his $285 million listing, he said, but he realizes the prospective buyer pool is tiny. “There are going to be three or four people who ultimately show real interest and have the capacity to pull the trigger,” he said.

Ultimately, he said he isn’t too worried about the prospects for sale, since he can afford to sit on the property long-term.

Still, real-estate agents said Satter’s property and others may be priced too aggressively, even without tariffs.

British hedge-fund billionaire Chris Rokos is listing his 3-acre Manalapan estate for $150 million, more than triple what he paid for it in 2017. And real-estate investor Vivian Dimond recently cut the price of a Manalapan home by $14.5 million, to $64.5 million. It’s been on the market since September 2024.

For some Manalapan residents, home values are beside the point. Bob and Aileen Carlucci, for example, have no intention of moving.

“We look at each other and we say. ‘This is it,’” Bob said. “You can’t get anything better, we don’t believe—in this country, at least.”

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