Since 1997, David Provost, a veteran of the mining industry, has led Bacchus Caves in transforming earth itself into luxurious, functional underground spaces. Our mission is simple yet unconventional: create environments that are as enduring as they are exquisite, as practical as they are immersive seamlessly integrating expert craftsmanship from structural design to detailed house finishing that elevates every space we build.
Building underground is more than excavation it requires balance, precision, and foresight. Soil type, moisture, airflow, and structural integrity all matter. One miscalculation can affect the entire project. From the earliest stages of Development Site Selection & Design, Bacchus Caves evaluates every environmental and structural factor to ensure long-term stability. We thrive on this complexity, carefully engineering every cave to harmonize seamlessly with the property and the natural landscape above.
Bacchus Caves began as David Provost’s vision to blend mining expertise with subterranean architecture. Over the years, our projects have ranged from intimate retreats to expansive 30,000-square-foot wine storage facilities, proving that underground design can be both practical and transformative.
Bacchus Caves designs and builds a wide range of underground spaces, including:
Notable projects include the world’s first underground spa at the Meritage Resort in Napa and climate-controlled wine storage for Sonoma wineries. Every project is crafted to evoke curiosity, awe, and exclusivity.
Craftsmanship, discretion, durability, and cost-awareness aren’t slogans. They guide each decision. Every cave reflects its owner’s priorities, while still meeting Bacchus Caves’ standards for engineering and longevity.
Though based in California, Bacchus Caves serves clients across the United States, adapting designs to local soil, climate, and regulations.
