Keith Frankel House: Inside the Vitamin Executive’s $61.5 Million Palm Beach Mansion
Keith Frankel, the former CEO of VitaQuest International, built one of Palm Beach’s largest homes at 1900 South Ocean Boulevard on Billionaires Row. The 21,305 square foot mansion sits on nearly two acres with 200 feet of ocean frontage and 180 feet of lake frontage. It was listed for $61.5 million in 2018.
Who Owns the Keith Frankel House
Keith Frankel is the name behind one of the most talked-about builds on Palm Beach’s Billionaires Row. Frankel spent years as president and CEO of VitaQuest International, a New Jersey vitamin and supplement manufacturer his parents founded. He and his wife, Tammy, used that wealth to construct a sprawling waterfront estate at 1900 South Ocean Boulevard.
The property took years to finish. Frankel bought the land in 2007 and did not complete construction until 2017. By the time it was done, the house stood among the largest and most expensive homes in a town famous for both.
This guide walks through where the house sits, how long it took to build, what is inside it, and what happened when Frankel tried to sell it.
Where Is the Keith Frankel House Located
The Keith Frankel house sits at 1900 South Ocean Boulevard, in a stretch of Palm Beach known locally as Billionaires Row. The address places it directly across the coastal road from the Atlantic Ocean, with Lake Worth Lagoon running along the back of the lot.
That dual water frontage is rare even by Palm Beach standards. Most oceanfront homes on the island only face the water on one side. Frankel’s lot stretches close to two acres and touches both bodies of water, giving it 200 feet of ocean frontage and 180 feet of lakefront.
Billionaires Row has earned its nickname honestly. The stretch of South Ocean Boulevard has drawn some of the wealthiest home buyers in Florida, and Frankel’s estate sits among neighbours who built or bought equally large properties in the same corridor.
History of the 1900 South Ocean Boulevard Lot
The land under Frankel’s house has changed hands several times. Willis and Miren du Pont once owned the parcel as part of a larger family estate before selling off the southern 200 feet in 2000. A related du Pont company resold the lot five years later to developer Robert Fessler.
Fessler sold the property to Frankel in 2007 for $15.9 million. At that point, the lot already had an earlier house on it, one built by Fessler that measured more than 23,000 square feet. Frankel did not keep that structure. He and Tammy tore it down and built a new home from the ground up.
Building the Keith Frankel House From 2007 to 2017
Construction on the new house stretched across roughly a decade. Frankel briefly listed the unfinished property in 2014, while it was still pre-construction, at an asking price of $65 million. That listing did not lead to a sale, and work on the house continued.
The house was finally completed in 2017, ten years after Frankel bought the land. According to reporting from American Luxury, nobody had ever lived in the home by the time it went back on the market the following year.
The long build reflects how large the finished project turned out to be. The main residence alone reached 21,305 square feet ofair-conditionedd space across three stories, not counting the guest quarters and outdoor living areas.
Inside the Keith Frankel House Features
The finished house carries a Colonial Bermuda style, sometimes described as Caribbean villa architecture, with a chevron pattern repeated across the floors and fireplaces. John Dewing of Sotheby’s International Realty, who shared the 2018 listing with fellow agent Morgan Atkins, said the style had become popular with today’s high-end buyers.
The property includes a long list of amenities built for both daily living and large-scale entertaining:
- A library and a lounge with a bar area
- A family room with a fireplace that opens onto a loggia and terrace facing Lake Worth Lagoon
- A home theatre and a spa
- An infinity edge pool
- A four-car garage
- A separate guest house
- A three-bedroom guest wing with its own living area and elevator access
In total, the property holds seven bedrooms and fourteen bathrooms, split between eight full baths and six half baths. Counting indoor and outdoor space combined, the estate measures close to 30,000 square feet.
The 2014 and 2018 Listings Explained
Frankel’s decision to list the property twice, once before construction finished and again after, says something about how the ultra-luxury market works in Palm Beach. Sellers in this price range often test demand early, then return with a finished product once buyers can see the full result.
When the completed house hit the market in January 2018, its $61.5 million asking price ranked as the fourth highest among all Palm Beach listings at the time. That figure placed Frankel’s home in rare company, even on a street built around eight- and nine-figure sales.
Waterfront homes with this kind of scale tend to draw comparisons to other high-profile builds. Readers who enjoy tracking how much a landmark property was worth when it was built and how that figure changed by the time of sale might also want to look at how John Wayne’s Newport Beach house appreciated over several decades, even though the original structure no longer stands.
Keith Frankel’s Other Palm Beach Property
The 1900 South Ocean Boulevard estate was not Frankel’s only Palm Beach address. He and Tammy also owned a smaller house at 169 Everglade Avenue, a four-bedroom, six-bathroom property built in 2001.
That second house sold in May 2020 for $7 million, or about $1,372 per square foot, according to The Real Deal. The buyers were the trust of Sarah and Joseph Tripodi. Joseph Tripodi previously served as chief marketing officer at both Coca-Cola and Subway. The Everglade Avenue house had last changed hands in 2002, when it sold for $3.2 million.
Public figures with high-profile homes often own more than one notable property, and the split attention that comes with owning multiple standout addresses is a familiar pattern in luxury real estate coverage. A similar dynamic shows up in the story of the Chris Bosh house in Miami Beach, where one property became far more widely covered than the athlete’s other real estate holdings.
Who Is Keith Frankel, VitaQuest CEO
Keith Frankel built his career around the family vitamin business. He founded Celmark International in 1990 and ran the company as its president until it merged into VitaQuest International, a business his parents had started in West Caldwell, New Jersey.
Frankel then led VitaQuest as its president and CEO. VitaQuest develops, manufactures, and markets dietary and nutritional supplements, and Frankel remained at the helm of the company until 2018, the same year his oceanfront mansion first hit the open market at its full asking price.
Palm Beach Billionaires Row Real Estate Trends
Palm Beach has built its reputation on more than scenery. Florida charges no state income tax, and that single fact has pulled a steady stream of wealthy buyers toward towns like Palm Beach for decades. Palm Beach Daily News reporting found that the town’s richest residents held a combined net worth of about $494.7 billion in 2024, based on an analysis of Forbes data.
That wealth shows up in the size of the homes being built along Billionaires Row. Hedge fund manager Ken Griffin, whose net worth Forbes places at roughly $34.4 billion, has spent more than $500 million assembling a Palm Beach estate spanning about 27 acres, with a mansion for his mother alone expected to reach around 44,000 square feet once finished.
Against that backdrop, Frankel’s 30,000 square foot estate and its $61.5 million asking price fit squarely into the pattern that defines this stretch of coastline. Buyers here are not simply purchasing a house. They are buying into one of the most concentrated pockets of private wealth in the United States.
Keith Frankel House Facts and Figures
| Detail | Information |
|---|---|
| Address | 1900 South Ocean Boulevard, Palm Beach |
| Land purchased | 2007, for $15.9 million |
| Construction completed | 2017 |
| Listing price | $61.5 million, listed January 2018 |
| Lot size | Nearly 2 acres |
| Ocean frontage | 200 feet |
| Lake frontage | 180 feet |
| Main house size | 21,305 square feet, three stories |
| Bedrooms | 7 |
| Bathrooms | 14 (8 full, 6 half) |
| Architectural style | Colonial Bermuda / Caribbean villa |
| Listing agents | John Dewing and Morgan Atkins, Sotheby’s International Realty |
Final Thoughts
The Keith Frankel house stands as one of the clearer examples of how long a true trophy property can take to build and how much money it takes to finish one on Billionaires Row. A decade passed between the land purchase and the final walkthrough, and the finished estate came with a price tag to match the wait.
For readers who follow celebrity and executive real estate, the takeaway is less about vitamins and more about patience. Frankel spent ten years building a home before it ever saw a resident, then priced it among the most expensive listings on one of America’s wealthiest streets.
FAQs
Where is the Keith Frankel house located?
The house sits at 1900 South Ocean Boulevard in Palm Beach, Florida, in a stretch of coastline known as Billionaires Row.
How much did Keith Frankel pay for the land?
Frankel paid $15.9 million for the property in 2007, according to The Real Deal.
How big is the Keith Frankel house?
The main residence measures 21,305 square feet across three stories, with total indoor and outdoor space reaching close to 30,000 square feet.
How much was the Keith Frankel house listed for?
The completed house was listed for $61.5 million in January 2018, making it the fourth highest asking price in Palm Beach at the time.
What company did Keith Frankel run?
Frankel served as president and CEO of VitaQuest International, a New Jersey-based vitamin and supplement manufacturer founded by his parents.
