Trey Mathisen joins William Means Real Estate

February 29, 2024

William Means Real Estate, the leading luxury real estate firm in Charleston, announced Trey Mathisen as the newest addition to its team of REALTORS®. For more than three decades, Mathisen has been a respected authority in the Charleston market as a certified real estate appraiser and licensed agent.

After earning a degree in Business Administration from The Citadel, Mathisen began his career in real estate. In 2004, he co-founded the successful appraisal firm, Charleston Area Appraisals, LLC. Specializing in residential properties along the South Carolina coast, Mathisen’s firm gained recognition for its focus on historic homes, multi-unit properties, waterfront estates, resort communities and rural acreage.

“One of Trey’s key strengths lies in his extensive network of relationships with custom builders, contractors, lenders and architects,” said Lyles Geer, President and Broker-in-Charge of William Means Real Estate. “This network facilitates a seamless process for his clients when looking to buy and sell their Charleston homes.”

His expertise is widely sought after by developers, builders, attorneys, agents and appraisers, making him a go-to consultant and expert witness, particularly for complex properties and transactions. Mathisen has also developed a comprehensive understanding of the construction and renovation process through collaboration with contractors and investors, particularly in dealing with historic houses, major renovations and construction projects.

“Over the years, my aim has always been to go above and beyond for my clients to ensure their needs are met in every transaction,” Mathisen said. “I have gained trust by treating everyone with integrity and demonstrating honesty in all situations. These core values have always been evident at William Means Real Estate, and I am excited to join their firm and help my clients find their piece of Charleston.”

Mathisen can be contacted at (843) 906-7904 and [email protected].

To learn more about William Means Real Estate, visit or call 843-577-6651.


About William Means Real Estate

Founded in 1933, William Means Real Estate is one of Charleston’s most established and successful real estate companies. The firm celebrated its 90th anniversary in 2023. Lyles Geer was named President and Broker-in-Charge in 2021 after his mother, Helen Geer, spent more than 20 years leading the company. The firm has continued to evolve with the latest innovations to remain at the forefront of the area’s real estate market. William Means Real Estate has an office on Broad Street in downtown Charleston and another in Mount Pleasant to assist clients in the East Cooper area. For more information, visit