There were 1057 housing finance commitments for owner occupation in September, according to trend terms Australian Bureau of Statistics figures.

Tasmania, the ACT, South Australia and Western Australia were the only jurisdictions where home loan commitments increased in September.

Tasmanian commitments had increased in every month since they totalled 1022 in November.

Monthly commitments had topped 1000 in every month after July 2016.

Before that, they dropped into the low 700s in 2012 and had not topped 1000 since 2009.

Meanwhile, Tasmanian dwelling approvals are increasing at the fastest rate in the nation .

ABS figures showed they increased by 1.5 per cent to 268 in September, in trend terms.

Approvals declined in every other state and territory in September.

Tasmanian approvals  were 11.2 per cent stronger in September than in September 2017.

The ACT was the only other state or territory to get approvals growth comparing the two Septembers.

National approvals weakened by 12.9 per cent between September 2017 and September this year.

Treasury analysis showed the value of Tasmanian residential approvals in the year to September increased by 23.9 per cent to $896 million in original terms.

Housing starts have also increased strongly.