Tasmania building starts weakest in nation despite approval surge

The Housing Industry Association’s 7 October release puts Tasmania at the bottom of the country on home building starts, even as a separate HIA read on approvals shows the state’s development pipeline filling faster than almost anywhere else in Australia.

Why it matters

HIA’s 7 October analysis of ABS data found 2,515 homes started in Tasmania in the year to June 2026, 12.7% below the state’s 10-year average, the weakest result of any state or territory. That gap matters more because it sits against the opposite trend on approvals. The same release and HIA’s earlier 30 September release on approvals show Tasmanian approvals climbing 21.8% for total dwellings and 14.4% for detached houses over the past year, both well ahead of most other states. For anyone sizing a Tasmanian project off the approvals number, the starts figure is the warning that approved stock is not converting into construction at anything like the same rate. A 10-year average shortfall of 12.7% on starts, set against approvals growth more than double the national rate, points to a widening backlog of approved homes still waiting on a builder. Benjamin Price, HIA’s executive director for Tasmania, said of the approvals growth: “That is good news, but an approval is not a home.”

The numbers

HIA’s 7 October release recorded 2,515 home starts in Tasmania in the year to June 2026, 12.7% below the 10-year average and the weakest result of any state or territory. The same release placed total dwelling approvals at 2,854 in the year to August 2026, up 21.8% on the prior year, against 9.1% growth nationally over the same period. HIA’s 30 September release, drawing on the same ABS approvals data, put detached house approvals at 2,565 in the 12 months to August 2026, up 14.4%, a growth rate beaten only by Western Australia. That release also recorded 701 houses approved in the three months to August 2026, up 22.1% on the prior quarter. Read together, the two releases describe a state approving new homes at one of the fastest rates in the country while starting them at the slowest.

What’s next

HIA has not put a figure on when or whether the approvals growth will flow through to starts, and neither release names a cause for the gap. For a developer or builder weighing a Tasmanian site, the approvals trend on its own overstates how much work is actually underway. Anyone pricing a project off the 21.8% approvals growth should check the starts data first: HIA’s own figures show roughly 370 fewer homes started than the 10-year average would predict, in the same period that approvals accelerated. The next HIA releases on starts and approvals, expected on their usual quarterly cycle, will show whether that gap closes or widens further.

Builder capacity is itself part of the question. A separate, much larger construction commitment in the state’s north, the AI data centre proposed for Sheffield, is competing for the same pool of Tasmanian builders and subcontractors that residential starts depend on, at the same time the approvals backlog is growing. Until HIA’s next data drop, the 2,515 starts figure is the best available read on how much of that approved pipeline is actually under construction today.