Case Study
Preserving the Sacred: New Clairvaux Monastery | Vina, California

Introduction
Where Ancient Stone Meets Modern Craftsmanship
In the quiet heart of Vina, California, an extraordinary architectural feat brings together centuries of history with the precision of contemporary design. The New Clairvaux Monastery is more than a religious sanctuary—it is a living bridge between time periods, continents, and cultures.
At the center of this remarkable project is the reconstruction of a Cistercian chapter house using 800-year-old stones originally quarried and carved in Spain. These stones—once part of a medieval monastery—were brought to America by media magnate William Randolph Hearst, only to sit untouched in San Francisco for decades. Today, they stand reborn through the vision of Master Mason Frank Helmholz and the thoughtful integration of Sierra Pacific’s Architectural Wall System.
Sacred Simplicity in Form and Function

Sacred Transparency: Light as a Design Element
Expansive direct glaze windows and architectural timber curtain walls open the stone structure to the light of the California sun. These glass elements do more than illuminate—they emphasize the sacred textures of hand-laid limestone, creating moments of reflection, both literal and spiritual.
At the heart of this sacred structure’s timeless grandeur is the intentional use of Sierra Pacific’s Architectural Wall System—seamlessly marrying ancient craftsmanship with modern performance.
Historic Meets Contemporary: A Dialogue in Design
To honor the rich heritage of 800-year-old stones from a Cistercian monastery in Spain, the design team turned to carefully integrated window and door systems that preserve visual serenity while enhancing spatial function.

Interior Grandeur: Spiritual Simplicity Meets Architectural Majesty
Within the sacred walls of New Clairvaux Monastery, ancient history and modern design coexist in perfect reverence. The atmosphere is at once monumental and serene, shaped by 800-year-old stones and infused with filtered California light through expansive glass elements.
A Palette of Timeless Materials
- The monastery’s interior design celebrates raw texture and time-honored craftsmanship. Earth-toned limestone, warm wood beams, and architectural bronze hardware form a restrained yet rich material palette, grounding the space in spiritual and historical depth.
- Every detail, from the hand-set stone to the Sierra Pacific timber curtain wall system, was selected to echo the values of permanence, humility, and beauty—key to monastic life.
Functional Beauty: Sacred Communal Spaces
Rather than a traditional kitchen, this space centers around shared experience. The refectory and scriptorium, designed for communal meals and quiet study, are bathed in soft daylight through custom architectural wall systems and direct glaze windows, creating a sense of sacred calm and contemplation.
The vestry and sacristy spaces replace typical baths, designed not just for utility but for spiritual preparation. Natural stone, filtered light, and quiet air circulation turn these functional rooms into contemplative spaces, reinforcing the monastery’s meditative rhythm.
Sustainability & Energy Efficiency
More than a restoration, the monastery’s reconstruction is a statement of enduring sustainability and thoughtful innovation, made possible by Sierra Pacific’s precision-engineered window systems:
Custom solutions like radius windows and specialty shapes make modern performance invisible, allowing history to lead.
Architectural-grade materials provide protection against California’s varied climate while complementing centuries-old stonework.
Superior thermal performance ensures the building remains temperate and efficient, supporting both preservation and comfort.
A Sacred Vision Realized
At its core, the New Clairvaux Monastery is not merely a structure—it is a spiritual legacy rebuilt. With its fusion of Cistercian tradition and modern innovation, it embodies the essence of sanctuary: enduring, inspiring, and deeply connected to both past and present.
This monastery is a living testament to the power of thoughtful restoration, masterful design, and reverent materiality—proving that even centuries-old stories can be told through modern craftsmanship.





A Testament to Enduring Beauty
This monastery is more than an architectural restoration. It is a manifestation of faith, patience, and artistry—reuniting sacred stones with sacred purpose. Here, ancient meets contemporary in a way that uplifts the human spirit, made possible through thoughtful collaboration between artisans, architects, and manufacturers.
Sierra Pacific Windows is honored to have played a role in this monumental project, where the timeless meets the technical, and light continues to pour through walls once darkened for centuries.