21391 Columbus Avenue, Cupertino, CA 95014 is a single family home which sold for $4,318,000. 21391 Columbus Avenue features 6 Beds, 3 Baths, 1 Half Bath. This single family home has been listed on Christie's International Real Estate Sereno since March 19th, 2024 and was built in 1953. Nearby schools include Abraham Lincoln Elementary_1, John F Kennedy Middle_1, and Monta Vista High.