"We need more houses built in New Zealand, at a lower cost," said Key, contrasting the National Party-led government's approach with Labour and Green Party policies to build more houses and create incentive schemes for home ownership.
"We need more land available for building, more streamlined processes and less costly red tape.
This doesn't require the Government to spend a lot of money. We are already a huge player in the housing market and I'm very wary of spending more of taxpayers' money."
Instead, barriers to private investment in housing needed to come down, he said.
"It's ridiculous, for example, that developers can wait six to 18 months for resource consent.
It's ridiculous that we allow councils to demand almost anything as a condition for the consent.
And it's ridiculous that we allow them to charge whatever fees they want.
"Unless these sorts of issues are dealt with there won't be more affordable housing built," said Key.
Making resource consents easier to obtain for housing will be part of a wider push to reform the Resource Management Act in what Key said was a drive to make New Zealand "a magnet for investment."
"I want to see big improvements in this area and it's going to be a high priority for the Government this year," he said.