Osuna Ranch is an historic 25-acre property purchased by RSF Association in 2006. Association members and their guests may enjoy miles of walking paths, expansive grass pastures and equestrian boarding. At any given time, the stables house nearly 50 horses with many of them being show horses or jumpers that have trained at Hap Hansen Stables, a world premier horse training facility.
The Rancho Santa Fe Association announced in July, 2017, the Juan Maria Osuna Adobe was placed on the National Register of Historic Places. As a result of being placed on the National Register, it has also been listed on the California Register of Historical Resources, pursuant to Section 4851(a)(2) of the Public Resources Code.
The Rancho Santa Fe Association remains committed to the restoration of the Osuna Adobe to its historic authenticity and to the preservation of the site for the education of Covenant generations to come. The goal of the Osuna Committee is, in part, to ensure that the Association's commitment to the community is met in a fiscally sound and historically responsible way.
Amigos de Osuna strives to preserve and restore the Osuna Adobe. Tax deductible donations can be made and directed to the Osuna Ranch through the Rancho Santa Fe Foundation.
It seeks public and private funding to rehabilitate and maintain the historic Adobe structure and grounds. Funds also provide the development of a docent program and further educational outreach based on the historical interpretation of the site for the Rancho Santa Fe community.