3019 Ion Avenue, Sullivans Island, SC 29482 MLS #25029593 Home Real Estate Charleston Sullivans Island 29482 3019 Ion Avenue Share Ask Realtor Saving Save Saved3019 Ion Avenue | #25029593 Under Contract - $6,600,000Sullivans Island, SC 29482 Virtual Tour 3019 Ion Avenue | #25029593 Under Contract - $6,600,000 Share Ask Realtor Saving Save Saved MLS ID: 25029593 Under Contract - $6,600,000 About this property Lot Size 1.8000 acres Year Built 1930 DOM 332AddressAddress:3019 Ion AvenueSubdivision: Marshall ReservationCity: Sullivans IslandZip Code: 29482County: CharlestonState: SCDescription Opportunity awaits at Battery Marshall, located at 3019 Ion Avenue on Sullivan's Island, an expansive and truly one-of-a-kind property offering a rare chance to create something extraordinary.Spanning 1.8 acres, across three contiguous lots, this remarkable site combines centuries of Lowcountry history with a once-in-a-lifetime opportunity to reimagine the future, to build upon this historic setting with creativity and vision.At the heart of the property stands a piece of living history, the Battery Marshall bunker, a resilient concrete structure built between 1930 and 1944 as part of America's coastal defense system.Once housing massive seventy-ton naval guns capable of firing thirty miles out to sea, Battery Marshall played a vital role in protecting Charleston Harbor during World War II. After the war, these fortifications were sold into private ownership, beginning a new chapter of coastal living.Today, Battery Marshall offers the opportunity to reimagine history itself, transforming this storied structure into a modern coastal residence, a private retreat, or a bold architectural centerpiece that bridges past and present.With three buildable lots, the possibilities are endless, from a single private estate with sweeping ocean views, to multiple luxury homes that honor the site's rich history while embracing the best of modern island living. Here, history, creativity, and coastal lifestyle converge, offering something truly rare.Located just steps from the beach, enjoy morning walks on the sand and evening sunsets right outside your door. Golf cart to all the island hotspots including Sullivan's Fish Camp, The Obstinate Daughter, Beard Cats, Mex 1, Poe's Tavern, Home Team, and Dunleavy's Pub. Hop over to the nearby Edgar Allan Poe Library, uniquely housed in Battery Gadsden. Or explore Fort Moultrie, where centuries of history come to life. Enjoy the island's public parks, complete with tennis courts, basketball courts, and playgrounds.Zoned for Sullivan's Island Elementary, Moultrie Middle, and Wando High School. This is Battery Marshall at 3019 Ion Avenue, a legacy property, and a canvas for the extraordinary on Sullivan's Island. Schedule your showing today.Schools PK-5 SPED Name Address Phone Type Grade Sullivan's Island Elementary 2014 Mike Perkis Place 8438833118 Public PK-5 SPED All Neighborhoods in Sullivans Island ABCDEFGHIJKLMNOPQRSTUVWXYZ subdivision Active Listings Avg Days on Market Avg DoM Avg Price A ABCDEFGHIJKLMNOPQRSTUVWXYZ marshall reservation , Sullivans Island 3403$4,600,833 S sullivans island , Sullivans Island 24381$6,592,996 Mortgage Calculator Price: $ Down Payment: $ % Term(*in years): Interest Rate in %: % Interest Rate as of: Fri, Oct. 02, 2026 $6,600,000Home Price $6,600,000Monthly payment $6,600,000Amount Financed $6,600,000Annual cost of Loan Get Approved Map SEE THIS PROPERTY James Schiller Realtor, Brand Name Real Estate Email: [email protected] Live Chat: Reviews Your Email: Your Name: Phone: Subject: I WANT TO VIEW THIS PROPERTYI'D LIKE TO MAKE AN OFFERWHAT ARE THE FEES?ASK A QUESTION Message: Send Suggested Listings Previus Next ©2026 CTMLS, GGMLS, CCMLS & CMLSThe information is provided exclusively for consumers’ personal, non-commercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, and that the data is deemed reliable but is not guaranteed accurate by the MLS boards of the SC Realtors. Listing Provided by Carolina One Real Estate 3019 Ion Avenue, Sullivans Island, SC, 29482 MLS: #25029593 $6,600,000 Share Contact Realtor Saving Save Saved