The median home value in Newcastle, CA is $835,000. This is higher than the county median home value of $620,000. The national median home value is $308,980. The average price of homes sold in Newcastle, CA is $835,000. Approximately 78% of Newcastle homes are owned, compared to 15% rented, while 7% are vacant. Newcastle real estate listings include condos, townhomes, and single family homes for sale. Commercial properties are also available. If you see a property you're interested in, contact a Newcastle real estate agent to arrange a tour today! Learn more about Newcastle Real Estate.