i would be more concerned with how many affordable homes this will deliver:
i suspect adding compliance cost, legal wrangles (treaty of waitangi, local council), who will build what, where, how will result in ihumatao becoming another $1. million plus suburb (in today's money; not when it hits the housing market, likely to be several years from now.
$30 million of taxpayers money buys how many votes I wonder?
Labour = Iwi. Need a Govt/party that = Kiwi