Waterloo Estates Johns Island SC Homes & Real Estate For Sale ALL ACTIVE MLS Listings Waterloo EstatesTotal Listings:3Average Price:$836,657Highest Listing Price:$849,990Average Days On Market:116Houses For Sale Waterloo Estates subdivision Johns Island SC. MLS real estate listings for sale in Waterloo Estates Johns Island SC by price, street, age, list date, bedrooms & more Waterloo Estates Johns Island SC. Currently, Waterloo Estates in Johns Island SC has a total of three listings on the local MLS for sale with an average price point of $836,657, the max being $849,990 and the lowest priced house $814,990. The neighborhood of Waterloo Estates subdivision in Johns Island SC has an average house size of 2,545 sq ft and the average days on the market in this community is 116. RelativeSort by Year Built: low to highSort by Year Built: high to lowSort by price: low to highSort by price: high to lowSort from oldest to newestSort from newest to oldestSort by status: active to under contractSort by status: under contract to activeSort by sqft: smaller to biggerSort by sqft: bigger to smaller Filters Saving Subscribe Unsubscribe Switch to Grid View Switch to Map View Loading...