A Timaru house was raided on Tuesday after neighbours alerted police to suspicious behaviour.

Police arrived at on the Mowbray St house at 12.30pm and were there for three hours.

Sergeant Kevin McErlain, of Timaru, said drugs with a combined street value of about $7000 were found at the house.

Police also found $2605 in cash.

Calls from concerned people in the neighbourhood had been going on for a few weeks, McErlain said.

People had reported "a lot of people coming and going" and a lot of short term traffic, he said.

A Timaru woman, 27, was to appear in the Timaru District Court on Wednesday on charges of possession of LSD for supply, possession of cannabis for supply, possession of amphetamine, and possession of utensils.

Recovered in the drug haul was seven 1 ounce bags of cannabis worth $300 to $400 each, 40 bags of cannabis with a street value of $50 each, 25 to 30 tabs of LSD with a street value of $40 a pop, 10 $25 bags of weed, and five bags of speed or amphetamine for $120 a bag.

McErlain said the drugs weren't well hidden but weren't in plain sight.