Health and Safety Issues with Cannabis Grow Operations

Former cannabis grow operations, even on a small scale, can pose significant health and safety issues for unsuspecting home buyers. These risks are often masked by owners of existing grow operations when the property is sold, making it difficult for home buyers and REALTORS® to detect.

Health and Safety

Mold and Fungus

Growing cannabis indoors often involves creating conditions with high humidity and high temperatures. These conditions can lead to formation of mold and fungus which can have serious health risks to occupants of the home, particularly in seniors or young people with breathing issues.

Health and Safety

Structural Defects

Disclosures of former grow-ops are not mandatory. While there is a legal requirement for sellers to disclose “material latent defects*”, grow-ops are not considered to meet the criteria because they may not show any observable physical issues. A REALTOR® can’t tell their client about something they don’t know exists. And where they do know about a former grow-op, we think they should have to disclose it.

Former grow operations might have radical modifications and structural changes. Diverting electricity or tampering with the wiring is dangerous and can lead to house fires. Such hazards extend to surrounding homes as well.

Health and Safety

Chemicals

Finally, the chemicals used in the production of cannabis can be harmful to humans. These chemicals are often left inside the residence and can sometimes mix with air that has been re-vented from the furnace or water heater, leading to a buildup of poisonous gases, which are also released out into the neighbourhood. There is risk of explosion caused by the combination of oxygen from exhaust fans and solvents.

These conditions can lead to formation of mold and fungus which can have serious health risks to occupants of the home.

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