SPOKANE VALLEY, Wash. -

Tuesday night police raided an illegal marijuana grow operation at a home in Spokane Valley where they found 273 plants growing in nearly every room.

The house is located in the 200 block of North Conklin. 273 marijuana plants were found in the home by authorities. To put that in perspective, the legal number of marijuana plants someone with a license can have is 30.

 Police were able to make the bust thanks to some watchful neighbors, who told police they knew something was up because of several warning signs. The renters of the home were hardly ever there, the windows were completely blacked out and all of the cars that came to the property had Idaho plates.

Police arrested 21-year-old Cole Brown of Coeur d'Alene for manufacturing a controlled substance and are expecting to make more arrests as the investigation continues.