Preston Taskforce and Preston Neighbourhood policing team raided a building on Manchester Road, Avenham on January 11th where they found over 500 plants in the cannabis factory.
The building also contained sophisticated lighting equipment and other paraphernalia.
It appears to be a cannabis cultivation over a long period of time. No arrests have been reported and an investigation is now underway.
The warrant was executed based on intelligence and Preston Police would like to thank the community for their support of this.
A Preston Police spokesperson said: “In a joint operation with Preston Taskforce and Preston Neighbourhood policing team, a drugs warrant was executed on an address on Manchester Road”
“Up to 500 plants have been located at the premises and it appears to be a cannabis cultivation over a lengthy period of time.”