Cannabis Construction

Sanctuary Medicinals

Project Image 1

Littleton, MA
Architect: Tony Fallon Architecture
24,000 SF

NOTE: Stock image.
Due to the proprietary nature of Sanctuary Medicinals’ grow procedures, we are not allowed to show pictures from the facility. 

Sanctuary Medicinals hired Vantage Builders to transform a 24,000-square-foot, former warehouse building into its new, state-of-the-art cannabis cultivation facility. Located at 234 Taylor St. in Littleton, the facility has eight grow rooms, with the capacity of up to 20,000 plants, and facilities for producing marijuana edibles and oils. 
Vantage worked closely with Sanctuary’s management to fully understand the firm’s unique methodology and approach to growing cannabis to ensure the facility supported its precise needs. Working in the formerly open warehouse area, the team constructed multiple rooms to enable the cultivation, processing, storage and shipping of cannabis products. 
Each grow room is approximately 2,400-square-feet in size and, with a vertical grow system, designed to maximize cultivation capacity. Track-mounted shelving units can be easily moved a few feet laterally with the simple turn of a wheel. 
The other production areas include the kitchen, extraction, drying, water and packaging rooms. The 1,600-square-foot kitchen has three ovens, a freezer and refrigerator. Eight to ten kitchen employees create cannabis edibles, including baked goods and chocolates. In the extraction room, workers process cannabis to make tinctures, lotions and oils, including Rick Simpson oil. An explosion-proof section of the extraction area ensures safe processing of the oils. 
The large drying room, maintained at a much higher temperature and lower humidity than the rest of the facility, ensures that the cannabis is properly dried before processing. As with the grow rooms, careful consideration was given to using the vertical space afforded by the building’s high ceilings. 
Sanctuary workers control the plants’ hydration and feeding from the water room, where the facility’s intricate irrigation system is managed. The irrigation system is designed to reuse up to 95 percent of its water, making the facility very environmentally friendly. The system collects condensation and any excess water, passes it through filtration and purifiers, and reintroduces it back to the growing process.
To ensure the necessary and precise levels of temperature and humidity, Vantage installed extensive HVAC and electrical systems and utilized proper materials in the buildout. The HVAC system features two 300-ton chillers and two 2-million BTU boilers, while each grown room has its own dedicated air handler, either one or two units depending on the room size. Between the chiller and boiler supplies, the facility contains several miles of welded steel pipe, which required significant planning and installation. 
The electrical system is backed up with a 1 megawatt generator to ensure the facility maintains operation. Humidity control was also factored into the building materials. All interior walls are built with insulated panels with closed cell structure to keep moisture out, while epoxy flooring provides similar protection. 
The location has approximately 2,500 square feet of office space for the company’s employees. The facility features multiple levels of security, with all areas constantly monitored by cameras and access is allowed only by security card and biometric fingerprint scanners.


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