One Mt Eden member issued a plea to her neighbours this week to keep an eye out for her beloved bike after it was stolen from her front porch. Another has offered her dog walking services over the weekend.
Telecommunications Users' Association acting chief executive Chris O'Connell said Neighbourly reflected the modern day dilemma of isolated neighbours - but would only work if everyone got on board.
Safe way to make contact
St Heliers resident Andrea Perez has been on Neighbourly since late January, and says it's helped her take the leap to meeting her neighbours.
"I was doing my gardening outside and someone said 'Are you Andrea?' and I said 'Oh my God yes'. [They said] 'You are from Neighbourly'.
"Before, that had never happened."
Ms Perez, pictured, who works at the St Heliers Community Centre, said the site helped get the word out about community events.
Previously unknown members of a neighbouring church had shown up to help cut watermelon for Round the Bays runners.
"They just came on board and said 'We're happy to help' because of Neighbourly."
One friend had 25 local members turn up to her yoga class.
"Everyone got into it straight away. I couldn't believe it."
Neighbourly was a simple and safe way to get in touch with the people next door, she said.