In the lead-up to the September 2017 general election, the New Zealand Labour Party launched a plan to reduce immigration by around a third in a bid to relieve chronic housing and infrastructure pressures (especially around Auckland):
…in recent years our population has been growing rapidly as record numbers of migrants arrive here. This has happened without the Government planning for the impact immigration is having on our country… This has contributed to the housing crisis, put pressure on hospitals and schools, and added to the congestion on roads…
Labour will… take a breather on immigration… In total, these changes are estimated to reduce net migration by 20,000-30,000. Without these changes there would be up to 10,000 more houses needed and up to 20,000 more vehicles on our roads annually.