Homes for sale Olde Park Mount Pleasant SC. MLS Listings Olde Park Mt Pleasant SC neighborhood Homes for sale. Real Estate in Olde Park subdivision is some of the most expensive in Mt Pleasant, but the homes are custom and the lots are large. Very centrally located off Mathis Ferry Rd and adjacent connected to I’On Village, this is one of the premium subdivisions of the area. There are marsh front and creek front homes, and every house is custom and features a much larger than average lot size. Prices start in the $900,000 to over $2Million.