Ellemar Enterprises, a multi-generational, ultra-luxury homebuilder based in South Florida, has listed a fully reimagined oceanfront penthouse at Le Sanctuaire in Highland Beach for $26.9 million. The 6,182-square-foot, full-floor residence is located at 3425 S Ocean Blvd, Unit PH, Highland Beach, FL 33487.
Originally built by Ellemar more than 30 years ago, Le Sanctuaire is a boutique, four-residence building known for architectural sophistication, privacy and direct beach access. Ellemar has returned to this legacy project to unveil a modern coastal home that blends timeless design with contemporary features and functionality.
The redesigned penthouse features four bedrooms and four-and-a-half bathrooms. It was completely gutted and rebuilt, transforming the former three-bedroom layout into a turnkey residence that rivals custom oceanfront estates. Highlights include 180-degree ocean views, floor-to-ceiling glass, a wraparound terrace with summer kitchen, a private elevator, curated designer finishes and direct beach access. Ellemar also completed building-wide upgrades to elevate the overall property.
Located between Boca Raton and Delray Beach, Highland Beach is one of South Florida’s most exclusive oceanfront communities. Known for its residential character, pristine shoreline and minimal commercial development, the town has fewer than 4,000 full-time residents.
“This project represents a full-circle moment. It connects the past, present and future of our family-run firm, which has more than three decades of experience in luxury development,” said Mark Rothenberg, CEO of Ellemar Enterprises. “With only four residences in the building, Le Sanctuaire offers a rare level of privacy.”
“Reimagining this residence alongside my father was especially meaningful,” said Brandon Rothenberg, vice president of real estate and development. “Returning to one of our earliest projects with a fresh design lens was both nostalgic and rewarding.”
For more information about 3425 S Ocean Blvd, Unit PH, Highland Beach, contact Ellemar at 954.603.0500 or
About Ellemar Enterprises
As a premier South Florida luxury homebuilder, Ellemar Enterprises has been building from Fort Lauderdale to Palm Beach for the past 30 years. Led by father-and-son team Mark and Brandon Rothenberg, Ellemar limits and monitors its growth and the number of projects it undertakes, so it doesn’t lose control of its quality. Its services include custom homes, design/building, consulting, renovation, project management, commercial tenant/improvement, development and residential. Recent awards include the 2022 Grand Aurora Award – Best Custom Home over 10,000 square feet, and South Florida Business Journal’s 2022 Structures Award – Best Custom Single-Family Home. For more information, call 954.603.0500, email
