Australian capital city house prices recorded a 4.7% decline in the September quarter, the steepest quarterly drop on record, according to Domain data.

What it means

Australian capital city house prices fell 4.7% in the September quarter 2026, the steepest quarterly drop on record according to Domain data. Every capital city recorded a decline for the first time in 15 years, driven by rising interest rates and cost‑of‑living pressures, signaling a deepening housing market correction.

Accuracy & sourcesGrounded

The claim is solid, based on Domain’s quarterly house price report, a reputable primary source. The reporting by ABC News and other major Australian outlets closely mirrors the data, and independent search results confirm the 4.7% figure and the historic breadth of the decline. The 'steepest ever' claim relies on Domain’s historical series, which is long‑standing and widely trusted.

How new

Genuinely new — the Domain data and news reports were published on 21–22 October 2026.

Past coverage

We covered the RBA warning about negative equity risks as house prices fell for six straight months (Oct 2, 2026), which set the stage for this quarter's record decline.

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