Weekly Market Update

🏠 Australian Property Market Update
Week ending 12 September 2026

Research by iInvest Property Team  •  Published 15 September 2026  •  5 min read

🔨 Auction Clearance Rates

NSW (Sydney)
54%
↓ down from 71% a year ago
VIC (Melbourne)
62%
↓ down from 69% a year ago
QLD (Brisbane)
53%
↑ best result of the quarter
SA (Adelaide)
48%
↓ down from 65% a year ago
WA (Perth)
30%
Lowest of the capitals
Combined Capitals
51.9%
↑ up from 46.1% last week
Spring has kicked the market back into gear — combined capital clearance rates lifted to 51.9%, up from 46.1% the week before, as listings ramp up for the traditional spring selling season. But zoom out and the picture is still soft: every major capital is running well below where it sat this time last year (Sydney was 71%, Adelaide 65%). Brisbane's the standout, posting its best clearance rate of the September quarter at 53%, while Perth continues to lag at just 30% as the WA boom cools off. Translation: spring is bringing buyers back to auctions, but they're still negotiating harder than they were 12 months ago. Source: Cotality/Domain, week ending 12 September 2026.

🏘️ Rental Vacancy Rates

Sydney
1.4%
Tight, holding steady
Melbourne
2.0%
Loosest of the majors
Brisbane
<1%
Ultra-tight
Perth
<1%
Ultra-tight
Adelaide
<1%
Ultra-tight
National
1.2%
Steady, 36,046 vacant dwellings
Landlords, you're still in the driver's seat. The national vacancy rate held at 1.2% this month, with Brisbane, Perth, Adelaide, Darwin and Hobart all sitting below the 1% mark that SQM classes as "ultra-tight." National rents rose another 0.8% over the past 30 days and are up 4.8% year-on-year, taking the national average to $655/week ($756/week across the combined capitals). Melbourne is the relative outlier at 2.0% — still tight by historical standards, but noticeably looser than Brisbane or Perth. If you're a Melbourne investor, tenant retention matters more right now than it does elsewhere. Source: SQM Research, September 2026.

🔥 Hottest Suburbs This Week

Oran Park
NSW • Outer South-West Sydney
+9–12% annual growth
Leppington
NSW • Outer South-West Sydney
+9–12% annual growth
Coomera
QLD • Gold Coast
Strong infrastructure-led demand
Mandurah (outer suburbs)
WA • Peel Region
+9–12% annual growth
Yanchep
WA • Northern Perth Corridor
+7–9% annual growth
Infrastructure is doing the heavy lifting this week. Sydney's outer south-west corridor — Oran Park, Leppington and neighbouring Austral and Edmondson Park — is riding the Western Sydney Airport (operational from late 2026), the M12 motorway and the South West Rail Link to 9-12% annual growth. On the other side of the country, WA continues to dominate the national growth tables, with Mandurah's outer suburbs and the northern Perth corridor (Yanchep, Two Rocks, Alkimos) still posting 7-12% as the metro pushes further out. Nationally, home values are up 3.9% year-on-year to a $908,000 median, and Brisbane has cracked the $1 million median for the first time. Source: Cotality, HTAG, September 2026.

💡 This Week's Property Insight: Perth's Boom Is Unwinding Fast

Perth has been the poster child of the post-pandemic property boom — values are still roughly 80% higher than five years ago, adding around $445,000 to the median. But the city just clocked its fourth straight month of falling values, and the reversal has come surprisingly quickly. The reason? A lot of that boom was built on empty shelves rather than deep, durable demand — thin stock levels driven by a construction slowdown, not overwhelming buyer appetite. Now that population growth is normalising after the post-pandemic surge and inflation is running hotter than expected, the props that carried Perth through the national downturn have largely dissolved. Perth's 30% auction clearance rate this week (the lowest of any capital) tells the same story.

Why this matters for you: If you bought in Perth during the boom, this isn't a crash — you've still banked huge gains, and the pullback has clawed back less than 8% of what the run-up delivered. But it's a reminder that booms driven by supply shortages rather than fundamentals can unwind just as fast as they built. If you're eyeing a "hot" market anywhere in Australia right now, ask what's actually driving the growth — genuine demand and infrastructure, or just a temporary shortage of listings.

📜 Government & Legislative Updates

🚨 Negative Gearing & CGT Reform Locked In for 1 July 2027

The federal government's May budget changes are now working their way through Parliament: negative gearing will be limited to new builds from 1 July 2027, and the 50% CGT discount will be replaced with CPI-based indexation plus a 30% minimum tax on realised gains. Properties held at 7:30pm on 12 May 2026 (budget night) are grandfathered and exempt from the negative gearing change. If you're weighing up an established-property purchase, the clock on the old rules is ticking.

🔗 Official Budget Fact Sheet →

🏡 WA Lifts First Home Buyer Stamp Duty Thresholds

From 7 May 2026, WA raised its stamp duty concession and exemption thresholds by $100,000. First home buyers now pay no duty on new or established homes up to $600,000 (up from $500,000), with concessions extending to $800,000. Vacant land thresholds rose too — no duty up to $450,000, concessions to $550,000. The WA government says this could save eligible buyers up to $22,515 on a home, or $25,390 on land plus build.

🔗 WA Government — Housing Taxation Package →

🏠 ACT Home Buyer Concession Scheme: Caps Removed

From 1 July 2026, the ACT's Home Buyer Concession Scheme dropped its income and property-value limits entirely — eligible buyers now pay no conveyance duty regardless of purchase price or income. It's one of the more generous first home buyer concessions in the country right now.

🔗 ACT Revenue Office — Home Buyer Concession Scheme →

🤝 Tenancy Law Reforms Continue to Roll Out

States are continuing to standardise tenancy law under the federal push for stronger renter protections — including standardised rental application forms and bans on certain third-party application fees. If you self-manage rentals, it's worth checking your state revenue or fair trading site for what's changed in your jurisdiction this quarter.

🔗 Attorney-General's Department — National Rental Reforms →

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