There are 32 new homes for sale on MLS in 29412 zip code James Island SC. Newly built houses have an average sales price of $1,068,044 in %subdivision% James Island SC, ranging in price from $475,000 to $2,250,000. The average sq ft spec home & new construction contract build is approximately 2,551 square feet for a just built house in 29412 zip code James Island SC. The largest property for sale is 3,841 sqft and the smallest 1,190 sqft. View property listings for sale by price, street, subdivision, age, property type, location, features, size, listing date, and time on MLS in 29412 zip is an average of one hundred sixteen days on the market.