SEA CASTLE North Myrtle Beach SC Homes & Real Estate For Sale ALL ACTIVE MLS Listings SEA CASTLETotal Listings:7Average Price:$447,814Highest Listing Price:$499,900Average Days On Market:133Houses For Sale SEA CASTLE subdivision North Myrtle Beach SC. MLS real estate listings for sale in SEA CASTLE North Myrtle Beach SC by price, street, age, list date, bedrooms & more SEA CASTLE North Myrtle Beach SC. Currently, SEA CASTLE in North Myrtle Beach SC has a total of seven listings on the local MLS for sale with an average price point of $447,814, the max being $499,900 and the lowest priced house $375,000. The neighborhood of SEA CASTLE subdivision in North Myrtle Beach SC has an average house size of 1,232 sq ft and the average days on the market in this community is 133. 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 active Filters Saving Subscribe Unsubscribe Switch to Grid View Switch to Map View Loading...