Forster Mansion National Historic Landmark 27182 Ortega Hwy, San Juan Capistrano, CA92675 The Forster Mansion is a historic special event venue located in the heart of San Juan Capistrano. The Mansion was built…More in 1910 by a successful rancher and the grandson of the immigrant, Don Juan Forster, one of the founding fathers of California. The restored property is now a special event venue that may be rented for weddings, anniversaries or business corporate functions. It has an in-house catering team who will be able to assist in creating a memorable special event in a beautiful and historic setting. There is a Best Western motel adjacent to the property that is perfect for out-of-town guests.