After a prolonged period of depressed real estate in all regions of Nevada County, industry experts are reporting an escalation in prices. “Over the last four months or so, we have seen an increase in values and in the number of houses sold,” said Diann Patton, broker and owner of Coldwell Banker Grass Roots Realty. “This trend has taken place throughout most of the county, and South County is no different.” Eric Hatch of Century 21 Foothill Realty said one of the most reliable indicators of market recovery in the South County real estate sector is the slender inventory of …