More than 180 cats have been rescued from a hoarder in Auckland.

That means the Auckland SPCA has twice as many cats as it usually would, and can't take anymore.

The SPCA is now working to give every single one of the cats an examination and any treatment they need.

Chief executive Andrea Midgen said they'll look to prosecute the owner.

She said they usually have around 150 cats at any time, so they're being housed in every "nook and cranny."

Ms Midgen said the decision to halt cat admissions "is not taken lightly. We simply have no space left. We have no choice but to stop incoming cats as a temporary measure."