Alongside the drugs, Mr Lynch said, officers found $66,288 in cash, 48 rounds of 9mm ammunition and 10 shotgun cartridges.
There was also laboratory equipment, chemicals and substances capable of being used to make the drug.
Two men aged 40 and 39 and a 39-year-old woman were arrested and charged with a number of methamphetamine-related offences.
The trio appeared in the Manukau District Court on Tuesday and the men were remanded in custody until their next appearance. The woman, from Puhoi, was released on bail.
"Organised crime, gangs and drugs are a driver of crime in general and responsible for considerable harm to the community," said Mr Lynch.
"Counties Manukau Police are committed to targeting organised crime, gangs and drugs as part of a multi-agency approach working with other government departments."
Around 200 clandestine meth labs are found each year set up in a range of places including vehicles and storage units.
He said if anyone had further information about drugs, gangs, organised crime or drug manufacturing operations, they should contact their local police immediately.
The law
Methamphetamine is a Class A controlled drug as defined in the Misuse of Drugs Act 1975. Possession of methamphetamine carries a maximum penalty of six months imprisonment and a $1000 fine. Methamphetamine "dealing offences" - including manufacturing meth, possession for supply or selling - carry a maximum penalty of life imprisonment.