What is "grow house"

n. (context informal English) A house or similar structure whose interior has been modified to be used for the farming of marijuana.

A grow house is a property, usually located in a suburban residential neighbourhood, that is primarily used for the production of marijuana, it may be used for the production of other plants such as Psilocybin mushrooms.

The houses are typically outfitted with extensive hydroponic equipment to provide water, food, and light to the plants, and the houses themselves are usually kept in good condition to blend in with the neighbourhood. Illegal electrical hookups are a common feature of grow houses, to both save money and to make it harder for authorities to identify them due to their unusually high electrical usage.