Habitat for Humanity says opening land on city fringes for building more houses is one answer to making them more affordable.
Cabinet ministers will on Monday vote on a plan to try to reverse housing inflation that has tripled the cost of a home in real terms in three decades.
The Government is expected to say it will increase the supply of land for building houses, reduce red tape and push down their cost.
Habitat for Humanity is an international organisation that develops realistically priced homes. Auckland executive director Warren Jack told Radio New Zealand's Morning Report programme that he is cautiously optimistic about the plan.
However, Labour's housing spokesperson Annette King says making more land available will not ensure that houses cost less.
The Property Council says terraced housing rather than high-rise apartments may be part of the answer to making housing more affordable.
Chief executive Connal Townsend says developers can build terraced houses, or standalone units for about the same price, so there are options to avoid high-rise buildings.