The government is due to deliver its plans to "tilt the balance" of the housing market towards first-home buyers on Tuesday morning.
Prime Minister Jacinda Ardern spoke to reporters on Monday ahead of the announcement - which included a warning to property investors.
There is some speculation that the Government will announce an extension of the bright-line test.
This is similar to a capital gains tax, and means people have to pay tax on any gains on a residential property if it's sold within five years.
National's housing spokesperson Nicola Willis hopes the plans will focus on building.
She spoke to Corin Dann.