Record-breaking oceanfront sale at 1 44th Avenue sets new benchmark for Isle of Palms and Sullivan’s Island
May 7, 2026
Photo by Keen Eye Marketing
A new benchmark has been set along Charleston’s barrier islands with the record-breaking sale of 1 44th Avenue, closing at $15,000,000, the highest residential sale recorded on both Isle of Palms and neighboring Sullivan’s Island. The oceanfront estate was listed and represented by Robertson Allen, Founding Partner and Broker-In-Charge of The Cassina Group. In addition to the contract price of $15 million, a separate bill of sale for $500,000 was executed for fixtures and select contents within the home, bringing the total transaction to $15,500,000.
Situated on a quiet stretch of one of the Lowcountry’s most desirable barrier islands, 1 44th Avenue is widely regarded as one of Isle of Palms’ most thoughtfully designed and meticulously executed custom homes. Originally built in 2017 by Sheppard Construction in collaboration with acclaimed architect Beau Clowney and renowned Charleston-based designer Cortney Bishop, the residence exemplifies a refined yet relaxed coastal lifestyle at the highest level.
“This is truly one of the most exceptional oceanfront homes ever brought to market on Isle of Palms,” said Robertson Allen. “The quality of construction and attention to detail throughout set it apart, offering an exceptional level of luxury.”
Unobstructed ocean views stretching to the iconic Morris Island Lighthouse define the home’s upper level, where 1 44th Avenue’s reverse floor plan was intentionally designed to fully capture the coastal setting. The open living concept, dining and chef’s kitchen area seamlessly connects to expansive porches, reinforcing the home’s indoor-outdoor living experience. The house offers multiple en suite guest rooms, a secondary living space, private office, and thoughtfully integrated design elements including hidden storage, custom J. Geiger shades, and high-performance MQ windows. The property is further enhanced by landscaping by Wertimer and Cline, copper roofing, advanced mechanical systems, and a three-car climate-controlled garage.
The record-setting transaction at 1 44th Avenue marks a significant milestone for the Charleston luxury market, further solidifying Isle of Palms and Sullivan’s Island as two of the most coveted islands for luxury homeownership in the Southeast.
Photo by Keen Eye Marketing
About Robertson Allen and The Cassina Group
Robertson Allen is the leading force in the region’s luxury real estate market. As a top Charleston real estate agent with over 20 years of experience and more than $1 billion in career sales, Allen has closed more $10 million plus transactions than any other agent and is recognized by RealTrends Verified 2025 as the #1 agent in South Carolina and by Charleston MLS as the #1 agent in Charleston County in 2025. His continued success is built on persistence, expertise and a genuine passion for serving his clients.
