Ngati Whatua o Orakei has told MPs it will not tolerate last minute changes to its Treaty settlement package.
The Maori Affairs Select Committee heard submissions on Tuesday on the bill that will legislate the Crown deal.
Some people are objecting to a piece of whenua at Devonport being part of the settlement, arguing that the land should become a reserve - to rule out the prospect of any houses being built.
But Ngahuia Hawke of Ngati Whatua o Orakei says the hapu has a history of being good custodians of the whenua.
She says if anyone visits the sub-tribe's marae, no-one will see lots of buildings on the land, which offers one of the best views in the world.
Ms Hawke says she does not understand where the objections are coming from.