Annie Halliday Williams
← INNOVATE Real Estate
No photos available for this listing

$3,225,000

Tbd Blackwall Island, St. Helena Island, SC 29920
St. Helena Island, SC 29920
Listed by Megan Feight · Maxey Blackstream Christie's
Bedrooms
N/A
Bathrooms
N/A
Living area
N/A
Year built
N/A

About this home

Rooted in the Lowcountry tradition of life on the water, Blackwall Island is a rare private island offering elevated coastal living. Nearly 20 acres of entirely high and dry land rise above surrounding marshlands, providing exceptional elevation, stability, and build confidence. A commercial-grade deep-water dock delivers direct access to the Intracoastal Waterway and nearby ocean for boating and recreation, with easy reach to Beaufort, Charleston, and Savannah. Included mainland parcels and seamless dock-to-dock access create a true compound, balancing convenience with complete seclusion. A generational legacy defined by scale, privacy, and enduring distinction. Proposed construction & home plans coming soon. 16 & 42 Cusabo Drive included in sale. Seller financing available.

Property details

MLS #
194715
Property type
Unimproved Land
Subdivision
N/A
Status
Active
Days on market
188
On market date
February 17, 2026
Stories
N/A
Garage spaces
N/A
Lot size
19.78 acres

Location

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Nearby schools

Within 10 miles · public school directory data (NCES)

Elementary
St. Helena Elementary
3.23 mi away · Grades -1-5
Zoned school (attendance boundary, 2015-16 data)
2.9
Local Score (state rating (2025) blended 70/30 with student-teacher ratio) -- not an official state rating
State rating: Below Average (2025)
Enrollment
322
Student:teacher ratio
10.1:1
District
Beaufort 01
Middle
Lady's Island Middle
6.7 mi away · Grades 6-8
Zoned school (attendance boundary, 2015-16 data)
3.3
Local Score (state rating (2025) blended 70/30 with student-teacher ratio) -- not an official state rating
State rating: Average (2025)
Enrollment
480
Student:teacher ratio
12.3:1
District
Beaufort 01
High
Beaufort High
7.71 mi away · Grades 9-12
Zoned school (attendance boundary, 2015-16 data)
4.0
Local Score (student-teacher ratio only (preliminary -- will incorporate state test-score data once available)) -- not an official state rating
Enrollment
1,174
Student:teacher ratio
14.7:1
District
Beaufort 01

Mortgage calculator

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Est. monthly payment
$19,571/mo
$645,000 down
$2,580,000 loan
Principal & interest$16,734
Property tax (est.)$2,688
Home insurance (est.)$150

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Data source: Listing information provided by Lowcountry Regional MLS (Beaufort-Jasper County REALTORS®) via Trestle/CoreLogic. Last updated 10 days ago.

Information herein deemed reliable but not guaranteed; all measurements, school assignments, HOA fees, taxes, and feature lists are approximate and should be independently verified. Equal Housing Opportunity.