Houses For Sale Anchorage Plantation subdivision Wadmalaw Island SC. MLS real estate listings for sale in Anchorage Plantation Wadmalaw Island SC by price, street, age, list date, bedrooms & more Anchorage Plantation Wadmalaw Island SC. Currently, Anchorage Plantation in Wadmalaw Island SC has a total of three listings on the local MLS for sale with an average price point of $2,756,333, the max being