Experts are hoping to get to the bottom of mysterious banging noises coming from below an Auckland home.

For months, noises have reverberated from beneath the Forrest Hill house, on the North Shore - with council officials yet to figure out its origins.

Neighbour Lizzie Oakes hopes a new development may help solve the puzzle.

"I think an engineer has made contact with the homeowner, they seem to think it might be a sound they've heard somewhere, so I think they're having a meeting with the homeowner tomorrow."

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