Skinny the cat has been credited with catching a peeping tom in Auckland's Grey Lynn.

A heroic cat is being given credit for helping police catch and arrest an alleged "peeping tom" in Auckland's Grey Lynn.

The swanky Auckland suburb has been plagued by a night creeper though police refused to say if Monday's arrest was related to the previous incidents.

Grey Lynn resident Carly Marr gave credit to her cat Skinny who alerted her to the man's presence on her Sackville St property around 2.30am on Monday.

"We were just about to go to bed when I went outside to have a ciggy," she said.

"My cat came flying down from the top of the driveway and she looked pretty scared," the 33-year-old said.

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Marr said she walked around the corner and saw a man squatting down, trying to look through the blinds of her window whilst holding a phone.

She yelled at him while following him, then rushed back to the house where she grabbed her brother.

The pair jumped into her car and followed the man while they called police, who swiftly arrived at the scene with a sniffer dog.

Avondale police confirmed they arrested and charged a man in relation to the incident in Grey Lynn around 2.30am.

Court documents showed a 59-year-old Auckland man was charged with one count of entering a Grey Lynn residence with intent to commit an imprisonable offence.

Detective Senior Sergeant Marcia Murray said inquiries were continuing into other incidents in the Grey Lynn area.

Marr said she was more angry than scared when she spotted the man at her house, as she knew what he was up to from posts on a local Facebook page.

"We had just actually been joking about it that morning... It was quite freaky," she said.

The heroic cat behind it all, Skinny, had been a stray before Marr had taken him in several years ago.

"Now she's a big fat cat that's a hero," Marr said.

Murray said Auckland residents should be viligant about home security, and make sure windows are locked at night.

Police were keen to hear from anyone with information about the offender or any other suspicious activity in the area.