Whangārei district councillor Stuart Bell has resigned just six months out from the local body elections.
Bell, who was in his second term as a councillor, said it was with some regret that he informed the acting chief executive on Monday of his decision to resign from his position.
"Local Government should in my opinion operate within the legislative framework it is bound by and be open, transparent and respectful to views of the communities it serves."
Bell said "too many things" had happened recently, mostly under the cover of confidentiality, that he believed indicated the council had forgotten that.
"For the most part, I have enjoyed the debates with other councillors when making decisions in meetings and working with council staff to deliver positive outcomes for the district.