We highly recommend renting a car in Asheville. Public transportation is not good enough in certain areas. Uber is available, however can be difficult from wedding venue.
Use Google or Apple Maps to type in 'Biltmore Estate', it will bring you to the estate main entrance, follow the road until the security entrance. Once you get there, you need to provide your name and say that you are attending our wedding. They will direct you to Antler Hill Village. Parking is free. Once parked, look for Cedric's Garden at the Village, there is also a guest service to your right to help you find your way.