How do recent Australian housing affordability metrics compare to 2020-2025 levels across major states?

Australian housing affordability has deteriorated markedly since the pandemic period of 2020-2022, with recent 2024-2025 metrics revealing persistent pressures across major states. Rising property values, elevated rents, and constrained supply have pushed ownership and rental costs beyond the reach of many households, particularly in capital cities. Data from Cotality and the National Housing Supply and Affordability Council (NHSAC) highlight that Sydney remains the least affordable market, while Adelaide, Brisbane, and Perth have seen sharp declines in accessibility. The KPMG Housing Affordability Index fell to 59.3 by September 2025, echoing mid-2023 lows and far below pre-pandemic levels near the low 90s. AIHW figures show rents rising 5.5% nationally between Q1 2024 and Q1 2025, compounding wage stagnation for lower-income groups. These trends reflect competing interests among homeowners benefiting from capital gains, renters facing tenure insecurity, developers navigating planning constraints, and communities concerned about social cohesion. This analysis examines state-level variations through lenses of supply shortages, price metrics, and policy responses, drawing on ABS-aligned data and research from AHURI and Per Capita to assess long-term implications for equitable housing outcomes.

Recent metrics underscore a national affordability crisis that intensified after 2020 stimulus measures. Cotality's Pain and Gain report notes Sydney's enduring position as Australia's most expensive city, with median dwelling prices exceeding $1 million amid limited land release and zoning restrictions. In contrast, conditions deteriorated sharply in Adelaide, Brisbane, and Perth, where annual price growth reached double digits, driven by interstate migration and investor demand. The Property Update median for all capital city dwellings stood at $950,703 in late 2025, reflecting a 12.3% annual increase, while houses averaged $1,013,138. These gains outpaced wage growth, eroding the position of first-home buyers and essential workers.

Rentals followed a parallel trajectory. AIHW data indicate a 5.5% national rent rise from Q1 2024 to Q1 2025, with uniform increases across all capitals. This compounds the effects of earlier low-interest-rate environments and the federal HomeBuilder scheme, which boosted demand without matching supply. NHSAC's State of the Housing System 2025 projects subdued gross new supply averaging 183,000 dwellings annually through early 2027, perpetuating shortages that favour existing owners over new entrants. KPMG's index at 59.3 in September 2025 signals mortgage stress levels comparable to 2023 lows, despite recent rate-cut expectations.

State variations reveal nuanced pressures. Melbourne and Hobart showed relative moderation compared with Perth's rapid escalation, where resource-sector inflows amplified competition. AHURI research emphasises that affordability extends beyond price-to-income ratios to include locational factors such as transport access and employment proximity, often overlooked in standard metrics. Homeowners in high-growth states have accrued substantial equity, yet this creates intergenerational divides as younger cohorts and renters face exclusion. Developers cite planning delays and infrastructure costs as barriers to increasing output, while community groups highlight risks of homelessness and social fragmentation.

Tenure security has weakened as rental escalations outstrip vacancy rates, disproportionately affecting low-income households. Per Capita analysis notes that earlier low borrowing costs masked underlying supply constraints now exposed by population growth. Competing stakeholder interests complicate reform: investors seek capital appreciation, local councils resist density increases, and state governments balance fiscal incentives with social housing needs. Evidence from Global Property Guide projections suggests these dynamics will persist without accelerated approvals and targeted incentives, maintaining affordability gaps relative to 2020 baselines when pandemic support temporarily eased entry costs.

Overall, 2024-2025 Australian housing metrics demonstrate a clear worsening from 2020-2022 levels, with price surges and rent inflation outstripping supply responses across states. Sydney's entrenched unaffordability contrasts with emerging crises in Brisbane and Perth, underscoring the need for coordinated planning reforms. Forward-looking policy must prioritise supply expansion, tenure protections, and balanced incentives to reconcile homeowner gains with renter stability. Without intervention, NHSAC forecasts indicate sustained pressure into 2027, risking broader economic and social costs.