Nestled in the foothills of Estes Park, the Stanley Hotel has always carried an air of wonder. Its history, its architecture, and its stories continue to draw visitors from around the world. When the opportunity came to help transform one of its historic buildings into the new Stanley Chocolate Factory, our team at Thompson Engineering was honored to be part of a project where craftsmanship, preservation, and creativity intersected.

The building that now houses The Stanley Chocolate Factory has stood for more than a century and was opened in 1907 as the Presbyterian Church of Estes Park. At that time, there were no municipal building codes to ensure the safety and longevity of the buildings structure, which proved to create expensive and complicated challenges down the road. Working within a century-old structure comes with challenges and rewards. The building’s original architecture required our team to design mechanical and plumbing systems that deliver modern performance without disturbing historic elements. Every piece of equipment, every run of piping, and every airflow strategy had to be carefully placed to protect the building’s character while supporting entirely new uses like the chocolate making and tasting experience, The Whiskey Vault, Steamer Cafe, and rooftop bar.

The heart of the building is the chocolate factory itself, where guests can watch small-batch chocolate being crafted with precision. Chocolate production requires strict temperature, humidity, and ventilation control. Our team designed systems to support chocolate tempering and production, sanitation and food-safe plumbing needs, and odor control to maintain a pleasant guest experience. The result is a space where guests can see, smell, and taste the process from bean to bar.

Hidden within the building is a one-of-a-kind whiskey vault offering curated tastings and an intimate atmosphere. This environment required unique mechanical and ventilation considerations to preserve the integrity of the spirits while keeping guests comfortable. Subtle, quiet, and efficient systems were key to preserving the mood without drawing attention.

The rooftop bar invites guests to take in sweeping views of Estes Park while enjoying craft cocktails. It may seem simple for an outdoor space to just exist, however this outdoor space in mountain climates require special planning for heating and cooling transitions, wind considerations, drainage and plumbing accommodations and guest comfort during changing weather. Integrating these systems into a historic footprint, and doing so without detracting from the views, was a rewarding challenge for our team.

Located within the building, the Steamer Cafe offers pastries, coffee, and quick bites for visitors exploring the property. Our plumbing and mechanical solutions had to accommodate both food service requirements and the historic limitations of the building, ensuring efficient operations without visible concessions to modern infrastructure.

The Stanley Chocolate Factory isn’t simply a renovation; it’s a reimagining of a historic space into a vibrant guest destination full of sensory experiences. From chocolate-making to whiskey tasting to taking in views from the rooftop bar, each experience is supported by thoughtful engineering behind the scenes.

For Thompson Engineering, this project reflects what we do best: solve intricate challenges, respect historic architecture, and help create spaces people truly enjoy.