Alyssa Longville and Callum Carter (left) are among the few who were able to buy their first home with a mortgage of more than 80 per cent of the purchase price.
The engaged couple will move into the $430,000 three bedroom weatherboard in Henderson in two weeks.
They had a pre-approved loan for a 6.6 per cent deposit with ASB, which this week said it was withdrawing outstanding approvals for borrowers with less than 20 per cent equity so it could meet the Reserve Bank's new loan-to-value ratio lending rules.
Miss Longville said the bank was almost ready to pull the offer, citing the new rules. But at the last minute it allowed a mortgage with a 10 per cent deposit.
"They were going to turn us down. We're so relieved, especially now that all the banks are tightening their lending restrictions."