Real Estate Columbia County. Browse homes for sale with Old Ghent Realty! We have been serving the county for 45 years, & we continue to be your guide to unique homes, farms & all the spectacular countryside that upstate New York has to offer - real estate that is overflowing with character & charm! Showcasing homes for sale in Chatham, Germantown, Copake, Valatie, Austerlitz, Copake Lake, Kinderhook, Taghkanic, New Lebanon, Ancram, Hillsdale, East Chatham, Clermont, Spencertown, Philmont, Lorenz Park, Stottville, Claverack, Stuyvesant, Ghent, Livingston, Niverville, Canaan and Stockport. Our Columbia County real estate agents and specialists are the best in the business! Find your dream home in the Hudson Valley with Old Ghent Realty.