It would meet the goals of the Better Local Government reforms released last year and the Government's wish to have better public services.
Regional council chairman Fenton Wilson, the plan's promoter, focused heavily on how it would ensure the functions of a regional council, and its job as an environmental caretaker would be preserved. There was a perception the regional council's function needed to be separated from the work city and district councils fulfilled for the community.
Only councillors Neil Kirton and Ewan McGregor opposed the plan. Councillors Tim Gilbertson and Liz Remmerswaal voted against the proposal when it was first introduced last week but did not attend yesterday's meeting.
Cr McGregor said he had talked with some councillors from the Wairarapa section during the past week.
"And the response tells me this is not a runner. No doubt the population of these areas would be against this if there was a referendum on it.
"I can't see it not involving the entire regions of Wellington and Horizons if you are going to take a fair chunk of their regions, it's going to impact on them."
Cr Kirton said the proposal lacked credibility and did not deserve to have a ruler cast over it by the commission.
"Councils are not just about function, they are about people. It is simply not credible to tell other councils what is best for them and how they should be run. This proposal seems to be all about protecting this little council and it is a smokescreen to do just that."