There are 125 new homes for sale on MLS in 29455 zip code Johns Island SC. Newly built houses have an average sales price of $986,793 in %subdivision% Johns Island SC, ranging in price from $250,000 to $3,995,000. The average sq ft spec home & new construction contract build is approximately 2,504 square feet for a just built house in 29455 zip code Johns Island SC. The largest property for sale is 4,752 sqft and the smallest 0 sqft. View property listings for sale by price, street, subdivision, age, property type, location, features, size, listing date, and time on MLS in 29455 zip is an average of one hundred twenty-two days on the market.