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$6,600,000
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Property 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.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.
Full Property Details
Full Property Details for 3019 Ion Ave
General
- Price: $6,600,000
- Status: Under Contract
- Type: Triplex
- Source: Charleston_Trident_MLS
- MLS ID: 25029593
- Updated: 12/17/2025
- Added to Site: 74 day(s) ago
Location
- Area: 43 - Sullivan's Island
- County: Charleston
- Subdivision: Marshall Reservation
- Driving 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.
School Information
- Elementary School: Sullivans Island
- Middle School: Moultrie
- High School: Wando
Community
- Community Name: 43 - Sullivan's Island
Utilities
- Sewer: Public Sewer, Septic Tank
- Water: Public
Structural Information
- Structure Type: Triplex
- Stories/Levels: 1
- Year Built: 1930
Lot Features
- Lot Size (Acres): 1.8
- Lot Size (Sq. Ft.): 78,408
Financial Considerations
- Terms: Cash
Listed by Carolina One Real Estate
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Schools
Schools serving 3019 Ion Ave
School District:Charleston County School District
| Name | Grades | Distance |
|---|---|---|
Sullivans Island Elementary School 2014 Mike Perkis Place, Sullivan's Island, SC 29482 | PK-5 | 1.5 mi |
Moultrie Middle School 645 Coleman Boulevard, Mount Pleasant, SC 29464 | 6-8 | 3.5 mi |
Wando High School 1000 Warrior Way, Mount Pleasant, SC 29466 | 9-12 | 8.6 mi |
Disclaimer:
School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 3019 Ion Ave
Date
Details
Price
Change
Source
11/04/2025
Listed
$6,600,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Tax History
Tax History for 3019 Ion Ave
Year
Property Taxes
Change
Tax Assessment
Change
2024
$13,812
3%
$51,750
—
2023
$13,444
3%
$51,750
—
2022
$13,046
2%
$51,750
—
2021
$12,837
2%
$51,750
15%
2020
$12,646
15%
$45,000
—
2018
$11,019
7%
$45,000
—
2017
$10,256
4%
$45,000
—
2016
$9,879
5%
$45,000
—
2015
$9,368
6%
$45,000
4%
2012
$8,837
—
$43,270
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 3019 Ion Ave
3019 Ion Avenue, Sullivans Island, SC 29482 (MLS# 25029593) is a Triplex property with 0 bedrooms and 0 full bathrooms. 3019 Ion Avenue is currently listed for $6,600,000 and was received on November 04, 2025. Want to learn more about 3019 Ion Avenue? Do you have questions about finding other Triplex real estate for sale in Sullivans Island? You can browse all Sullivans Island real estate or contact a Coldwell Banker agent to request more information.

