The operation has led to police seizing suspected ecstasy tablets, cocaine, steroids and prescription drugs.
A male, aged 34, and female, aged 30, have been arrested for possession of drugs, possession with intent to supply, conspiracy to supply and importing drugs. The woman was arrested at the residential address. The male was arrested at the business premises. They have been bailed to return in late September pending further enquiries.
The investigation is being led by Sutton South Safer Neighbourhoods Team supported by CID officers from Sutton.