The new year is bringing changes in ownership to three significant buildings in and around Nashville. The House of Cash — a building that previously housed Johnny Cash’s offices and a tourist center — has been sold by the singer’s son, John Carter Cash, to Vintage Partners LLC for $600,000. The property in Hendersonville, Tenn., will be used for office space. … On Music Row in Nashville, the building that has provided offices for Sony Music Nashville is up for sale as Sony employees prepare to move into the RCA Label Group building. Sony Music merged with RLG’s parent company, the Bertelsmann Music Group (BMG), in August. Significantly, the Sony building houses the Quonset Hut, the room legendary record producer Owen Bradley built as a recording studio. The studio spawned classic recordings by Patsy Cline, Conway Twitty and many others. … And the United Methodist Church’s General Council on Finance and Administration has paid $2.9 million for a building once occupied by the RCA, BNA and Arista labels now located at the RLG building on 18th Avenue South.