Houses For Sale Polly Point Plantation subdivision Wadmalaw Island SC. MLS real estate listings for sale in Polly Point Plantation Wadmalaw Island SC by price, street, age, list date, bedrooms & more Polly Point Plantation Wadmalaw Island SC. Currently, Polly Point Plantation in Wadmalaw Island SC has a total of five listings on the local MLS for sale with an average price point of $808,600, the max being