GV27: National's biggest drubbing was on the back of a lack of action housing (despite the fact Labour got in and made things worse and did even less to fix it) and if Bill English had acknowledged the need for reform he would have been forming a government in 2017.
The Ardern Labour government removed medium density rules and allowed numerous more sites to be used for high density residential development. That single change made a huge difference to the number of projects started.
Back to the topic - Luxon's National government has signaled an intention to roll back that change. It's unclear to me if that rollback will happen only for the upper tier suburbs or more general.