A plan to rename Christchurch's east frame development is "a waste of resources".
Cera has pushed the deadline to demolish or remove residential red zone buildings to the end of July.
The new leaders of Christchurch's earthquake rebuild will be announced this week.
Christchurch's oldest wooden commercial building was spotted dangling above the central city on Saturday.
New Zealand's largest telephone company Spark is weighing its return to the centre of Christchurch.