Preservation awards include Glen Oaks stone barn
Preservation efforts earned an award.
The Sonoma League for Historic Preservation has bestowed “Award of Merit” honors on the stone barn at Glen Oaks Ranch in Glen Ellen, and acknowledged the preservation efforts of The Sonoma Land Trust, Degenkolb Engineers, and Treeline Construction, Inc. on the historic 1859 structure.
Colonel Charles and Ellen Stuart purchased the ranch in 1859. Colonel Stuart built the adobe stone mansion, smokehouse, and the barn with local stone and Chinese labor. The two-story barn measures 75 feet long and 35 feet wide, has a number of large stalls, tack room and hay loft.
In 1994, after several changes in ownership, the property was accepted into the National Registry of Historic Places. In 2002, the land was bequeathed to the Sonoma Land Trust.
In 2010, an anonymous donor offered to provide half of the cost of completing all of the seismic retrofitting and preservation needed for the stone barn, and the Land Trust committed to raising the balance of the funds.
Degenkolb Engineers drafted the construction plans by the end of that same year.
Treeline Construction worked closely with the Land Trust and the engineers to refine plan details while permits were being secured. During construction, Treeline provided key solutions to safeguard the integrity of the structure. The construction, completed between June and December 2012, included seismic reinforcing that included drilling in stainless steel rods every three feet throughout all four walls to connect the two rock layers; installing a reinforced concrete beam at the top of the stone walls and anchoring the roof to the new beam, adding new rafters to the existing rafters on the second floor hay loft; replacing rotted gable end siding, and rotted joists and flooring for ground and second floors; repointing cracks and fallen stones; repairing doors and window shutters; and installing a new shake roof.
The Sonoma League for Historic Preservation honors efforts to promote the historic architectural character of Sonoma Valley and the City of Sonoma. The program has provided awards to architects, designers, their clients, and other contributors. Outstanding projects awarded over the past 36 years have involved preservation, restoration, adapted reuse and creative design of historic sites, and new construction compatible with the historic character of the area.