People had nowhere to go and hung around, with police being called to remove hooligans who were making nuisances of themselves, he said.
Mr Mikaere said that once their neighbourhood linked into roads to be built on the other side of The Coast, and there were normal traffic flows, then it would be fine.
However, that was still several years away.
Residents said they felt they should have been consulted by the council before the gates were removed and said speed humps were now needed on the main approaches to the roundabout, saying there had already been problems with speeding cars and screeching tyres.
They also called for more lighting to illuminate the back of the park and playground.
Mr Dwight said there was a lot of empty sections and open space for vandals to escape into. "Lighting is an absolute imperative for residents," he said.
Council's corporate legal advisor Kirstie Elder said there was a common law right allowing people to pass along public roads, and this had been raised by a resident.
The gates had been interfering with the public right of access and the resident no longer wished to be in a gated community.
The gates were interfering with the public's right of access and creating a legal nuisance, putting the council at significant legal risk, she said.
Meeting chairman, councillor David Stewart, said the council's hands were tied.
The meeting called for a report to see what could be done in the meantime about the problems being experienced by residents.