3019 Ion Avenue, Sullivans Island, SC 29482 (MLS# 25029593)


Notice: Function rest_validate_value_from_schema was called incorrectly. The "type" schema keyword for inspectorHtml can only be one of the built-in types: array, object, string, number, integer, boolean, and null. Please see Debugging in WordPress for more information. (This message was added in version 5.5.0.) in /home/drewsineath/public_html/wp-includes/functions.php on line 6121

3019 Ion Avenue, Sullivans Island, SC 29482

$6,600,000
Property Type: Residential Lot Size (sq. ft.): 78,408 Status: Active Contingent
Current Price: $6,600,000 List Date: 11/04/2025 Last Modified: 12/30/2025

Description

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.

Supplements: 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.

More Information MLS# 25029593

Location, Tax & Legal

Legal Description: LT 2A, 2B, 2C BLK 11 Tax Map #: 5291200091 Street #: 3019 Street Name: Ion Street Suffix: Avenue County: Charleston State: SC Zip Code: 29482 Area: 43 - Sullivan's Island Tax District: 23 - Town of Sullivan's Island Subdivision: Marshall Reservation Elementary School: Sullivans Island Middle School: Moultrie High School: Wando Directions: From Mount Pleasant on the Ben Sawyer Bridge coming into Sullivans Island, take a left onto Jasper Blvd. From there, take a right onto Station 30. Then, take a left onto Ion Ave.

General Property Info

Primary Bedroom – Main Level: No Stories: 1 Potential Short Sale: No Other Structures Y/N: No Year Built: 1930 Acreage: 1.8

Tax/Fees

Taxes: 13812

Office/Member Info

Seller Concessions Negotiable Y/N: No

SqFt Source

List Agent: 1

SF Attached Style

Triplex (1 Unit): 1

Assumable

No: 1

Proposed Financing

Cash: 1

New Owned

Pre-Owned: 1

Water/Sewer

Public Sewer: 1 Public Water: 1 Septic: 1

Contract Info

Sub-Type: Single Family Attached MLS List Date: 2025-11-04 Status: Active Contingent List Price: $6,600,000 Current Price: $6,600,000

Property Features

SqFt Source: List Agent SF Attached Style: Triplex (1 Unit) New Owned: Pre-Owned Proposed Financing: Cash Assumable: No
Listing Office: Carolina One Real Estate
IDX
Last Updated: December - 30 - 2025
Broker Attribution: 843-779-8660

Properties marked with IDX logo are provided courtesy of Charleston Trident Multiple Listing Service, Inc. The data relating to real estate for sale on this web site comes in part from the Broker Reciprocity Program of the Charleston Trident Multiple Listing Service. Real estate listings held by brokerage firms other than the website owner are marked with the Broker Reciprocity logo or the Broker Reciprocity thumbnail logo and detailed information about them includes the name of the listing brokers. The broker providing this data believes it to be correct, but advises interested parties to confirm them before relying on them in a purchase decision. Information is provided exclusively for consumers' personal, non-commerical use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.


Notice: Undefined variable: html in /home/drewsineath/public_html/wp-content/plugins/misc-customization/misc-customization.php on line 30
X