"The low level of new housing supply has contributed to an imbalance in the housing market and resulted in strong increases in Auckland and Canterbury house prices," said Turner, whose bank was forced to withdraw large numbers of pre-approved high LVR mortgages, a part of the market it had previously targeted.
While the RBNZ hopes that its high LVR lending restrictions will reduce demand by locking out some potential buyers from the market, ASB's Turner said "we expect the restrictions will only have a modest impact."
"We continue to expect house prices to increase strongly in these regions until new housing construction increases and interest rates lift", with the RBNZ expected to raise the Official Cash Rate from March next year.
McKenzie said it was too early to cite LVR restrictions as a reason for the drop in September listings.
"It's a wait and see with the changes that are happening, but historically we will see listings coming onto the market in October/November, and it's going to be quite welcome," he said.
Prime Minister John Key defended the RBNZ's move in a breakfast television interview on TV3, and reiterated to his weekly press conference yesterday that he had asked the RBNZ to exempt first home buyers from the restrictions, only to be advised that they would be less likely to work and that interest rates would rise further and faster than if the restrictions were put in place.
"Like all medicines, I don't necessarily like having to swallow it either, but what is the best thing overall for the economy?" said Key.