Greenville County Register of Deeds has free, online searches of land records. Before 1985 land records exclude plats. Land records after 1985 include plats.
“The Pre-1985 section provides access to all index books, deeds, and land grants. Some mortgages are also available (more will be added in the future).”
“The After-1985 section provides access to all recorded documents including deeds, plats, mortgages, powers of attorney, and liens.*”
“*Exception: SC tax liens prior to 2000 are available at the Clerk of Court.”