Officers raided the property in Mexborough earlier today to make the find.
A spokesman for South Yorkshire Police’s Doncaster West Neighbourhood Policing Team said: “Warrant executed today in Mexborough - over 200 plants seized.
"The electricity meter had been bypassed, which presented a fire risk to neighbouring properties. No arrests made. The investigation is ongoing.”
Anyone with information about drug operations in Doncaster can contact police on 101.