Latest submission from businesses says existing legislation is fit for purpose.
Todd Muller says some farmers will have to walk off their land.
Government still waiting on upper North Island port study.
Watch our panel discussion on the latest changes.
Towns and cities will also have to clean up their act.
How many houses will be built under the new policy?
The politics of opposition have changed through this year, with less olive branch and more opposition.
But government insists building boom will continue.
Unsold KiwiBuild homes will be sold on the open market.
Investment in infrastructure could be the loser, they warn.