The Cassina Group
The Cassina Group

309 Coleman Boulevard

Mt. Pleasant, SC, United States

Robertson Allen

The Cassina Group

27 Lamboll Street 27 Lamboll Street

$7,950,000 USD

Charleston, SC, United States

306 Ocean Boulevard 306 Ocean Boulevard

$6,350,000 USD

Isle of Palms, SC, United States

222 Haddrell Street 222 Haddrell Street

$7,375,000 USD

Mount Pleasant, SC, United States

Pending 384 Overseer Place 384 Overseer Place

$2,995,000 USD

Mount Pleasant, SC, United States

Robertson Allen

A Charleston native, Robertson loves the Lowcountry and everything this one-of-a-kind city has to offer.

Robertson graduated from Clemson University and has worked in the Charleston real estate market since 2002. In 2006, Robertson formed The Cassina Group with his business partner, and the company consistently ranks as the #1 boutique firm in Charleston, SC.

Over the course of his career, Robertson has become an annual multi-million dollar producer and a multiple year recipient of the Realtor of Distinction - Executive Circle award. He specializes in luxury properties in historic downtown Charleston, Mount Pleasant, Sullivan’s Island, Isle of Palms, and other areas of the Lowcountry, while always delivering the strongest results for both his buyer and seller clients.

Robertson takes a creative, solutions-driven approach to finding the perfect match for his clients and works tirelessly to find the "right addresses" to ensure that they will love Charleston as much as he does. He currently lives with his wife and two sons in the city of Charleston and enjoys boating, fishing, playing golf, and exploring the city’s culinary scene. He is also actively involved in the community, serving on boards for Charleston Day School, Historic Charleston Foundation and First Citizens Bank, as well as a supporter of Good Friends of the Lowcountry and the American Heart Association.

Some of Robertson's recent real estate honors include:

• #1 agent for Charleston County sales (2023)
• #1 agent in MLS for sales on Sullivan's Island (2023)
• #2 agent in MLS for sales in historic downtown (2023)
• #1 agent in South Carolina by Real Trends (2022)
• #1 agent in MLS for overall sales (2021)
• Top 5 agent in MLS for overall sales (since 2010)
• Top 5 agent in MLS (since 2010) for the following luxury categories: $1,000,000, $2,000,000, $3,000,000, $4,000,000, $5,000,000 & $6,000,000

Business Details

Year Established

Service Areas

Charleston, SC
Mount Pleasant, SC
Isle of Palms, SC
Sullivan's Island, SC

Additional Resources