West Point Inn Structural Strengthening and Rehabilitation - Mt Tamalpias, Mill Valley, CA
 

Perched along the historic Old Railroad Grade near the summit of Mt. Tamalpais, the West Point Inn has welcomed hikers, cyclists, and overnight guests since 1904. Originally built by the railroad as a way station and restaurant for travelers continuing by stagecoach to Willow Camp (Stinson Beach) and Bolinas, the inn remains one of Marin County’s most cherished landmarks.

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In partnership with the Marin Municipal Water District and under the direction of Architectural Resources Group (ARG), Treeline Construction served as Prime Contractor for the structural strengthening and rehabilitation of this historic property. The project was initiated by the West Point Inn Association, a nonprofit volunteer group dedicated to preserving the inn’s legacy for future generations.

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Treeline’s work included a voluntary seismic upgrade and comprehensive structural repair of the building’s weathered 12-inch rubble stone foundation. The team shotcreted the interior face of the foundation, inserted new plywood shear walls, and shored and reconstructed an 800-square-foot 1920s addition, complete with new foundation, floor framing, and exterior walls. Throughout the project, Treeline matched original finishes with remarkable precision—replacing deteriorated shingles, trim, and siding to match the original coursing, coping, and coved skirt detailing.

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Where interior steel bracing was required, Treeline carefully removed, recorded, and sliced each stone, reinstalling it in its exact original location so the finished work would appear untouched. Similarly, rotted window sash components were restored in Treeline’s shop, where new custom-milled stiles, rails, and muntins were fabricated to replicate the originals.

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The project was completed during the slow winter season to minimize disruption to inn operations—despite challenging mountain access, remote logistics, and severe weather. Treeline’s proactive approach, problem-solving, and commitment to long-term durability were recognized by both the owner and architect.

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The restored West Point Inn stands today as a testament to Treeline’s craftsmanship and preservation ethic—a structure strengthened for the future yet indistinguishable from its historic past.