Sea Island Preserve, Johns Island
Sea Island Preserve Homes for Sale and Neighborhood Guide
By Blake Heron, Realtor, Heron Homes CHS with eXp Realty.
Sea Island Preserve is a new construction community on Johns Island. Every home sold here in the past year was built in the 2020s, and half were built in 2025 or 2026.
Blake's read on the market. Sea Island Preserve is one of the busiest neighborhoods on Johns Island, with 54 single family sales at a median of $778K. Prices ran from $565K to $1.25M, and the median home sold at 99.9% of its list price.
What different homes sell for
Median sale price over the past 12 months.
Homes sold by price, past 12 months
Every closed sale, all residential, Charleston MLS, October 2025 through September 2026.
Streets buyers ask me about
Sales are for the past 12 months, all residential, Charleston MLS.
Cousteau Court
The most active street with 12 sales at a median of $787K.
Hugh Bennett Drive
Eight sales at a median of $850K, including the top sale of the year at $1.25M.
Grinnell Street and Cranesbill Way
Some of the most accessible homes, with medians of $610K and $613K.
What buyers look for here
Features as marked by listing agents in the Charleston MLS, past 12 months. Some homes with these features are not marked.
Primary bedroom down
32 of the 54 homes that sold had the primary bedroom on the main level.
Gated
40 of the 54 sales were marked as a gated community.
What to know before you buy in Sea Island Preserve
New construction
Builder contracts, upgrades and incentives work differently from a resale. I review the contract, compare the total cost against nearby resales and help you negotiate.
City or county
Parts of Johns Island are in the City of Charleston and much of it is unincorporated Charleston County. Which one a home sits in affects taxes, trash and what you can build, so I confirm it for every home before you make an offer.
Flood and insurance
Marsh and creek front streets on Johns Island can sit in flood zones while homes nearby do not, and insurance costs follow. I pull the flood zone and an insurance quote for every home before you make an offer.
Living in Sea Island Preserve
Day to day
The Angel Oak, farm stands, marsh and creeks are all on Johns Island, with Kiawah, Seabrook and Folly Beach close by.
Getting around
Maybank Highway and River Road are the main routes toward James Island and downtown Charleston, and rush hour traffic on them is the biggest complaint I hear. I have buyers drive the commute before they commit.
Buying or selling in Sea Island Preserve
New build or resale, every home here prices differently. I will walk you through the recent sales that matter for your exact home or search. Call or text Blake Heron at 843-718-6338. Heron Homes CHS, eXp Realty.
Explore nearby areas
Prices from the Charleston MLS, all residential, City of Johns Island, subdivision Sea Island Preserve, closed sales October 2025 through September 2026. Pulled October 2026. Rules and school assignments can change, and I confirm them for each property.
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