Officers from Colne Neighbourhood Policing Team found 20 large cannabis plants at the house in Hargreaves Street on Monday afternoon.
PC Mark Blackey said: “We received information from a member of the public and executed a warrant at the address. We would urge anyone with information regarding drugs in Colne to contact us.”
Police say that inquires are ongoing to locate the offender.
Anyone with information should contact 472441 or Crimestoppers on 0800 555111.