The Rafael Guastavino Sr. Estate, also known as Rhododendron, is a historic estate and a national historic district located near Black Mountain, Buncombe County, North Carolina.

Other contributing elements are a section of stone wall, a vaulted hillside cellar (traditionally known as the wine cellar), the exposed foundation ruins of the house, and earthworks.

The estate was Guastavino's principal residence for the last 14 years of his life.

The property is now Christmount, the conference and retreat center of the Christian Church (Disciples of Christ).

This article about a property in Buncombe County, North Carolina on the National Register of Historic Places is a stub.