NAB report identifies risky Sydney suburbs where mortgage default is likely

The National Australia Bank has released a list of Sydney suburbs which pose the most risk for first-home buyers, with the bank detailing areas where a deposit of up to 30 percent may be required to secure a purchase.

The hit list, partly a response to Sydney’s booming house prices, concentrates on the inner west, west and south-west.

The bank said the list was a normal strategic move in assessing their risk, however mortgage brokers have said it is “unprecedented” and will making buying a house even harder for first-time buyers, who struggle to have large deposits.

“There’s always been lists, and there’s always been postcode restrictions, what’s really different this time is it’s affecting those loans going up to 80 percent,” Aneta Dimovska, from Astute Mortgages, told 9NEWS.