Welcome to August The Mansion, a timeless and iconic dining destination within the oldest home in O'Fallon, Illinois. Built in 1857 by August Wastfield, it is recognized today as a historical landmark by both the City of O’Fallon and St. Clair County.

As we revive the spirit of the Wastfield home and property, we can’t wait to welcome you back to share in new memories with our inviting atmosphere, impeccable service, and exceptional cuisine.