Vacancy rates are more than just a number on a real estate report—they’re a pulse check on the Australian property market. In 2025, dramatic shifts in housing supply, migration, and government policy have sent vacancy rates to historic lows in some cities, while other regions see a rebound. For investors, renters, and homeowners, understanding what vacancy rates signal can mean the difference between making a savvy move and missing the mark.
At its core, a vacancy rate measures the percentage of rental properties in a market that are unoccupied at a given time. For example, a vacancy rate of 1% in Sydney means only 1 out of every 100 rental properties is sitting empty. This figure provides crucial insight into the balance of supply and demand in the rental market.
Vacancy rates are watched closely by property investors, developers, and policymakers, as they influence everything from rental yields to new housing approvals.
Australia’s rental market in 2025 is defined by tight conditions. Nationally, vacancy rates have hovered below 1% in major capitals such as Sydney, Melbourne, and Brisbane for much of the year, according to recent data from property analytics firms. This is well below the 2–3% range considered a ‘balanced’ market.
Several factors are driving these low rates:
For example, in Sydney’s inner west, the vacancy rate in March 2025 was just 0.8%, pushing median weekly rents for two-bedroom apartments above $750. Regional areas like Ballarat and Newcastle have also seen rates dip below 1%, highlighting that the supply squeeze isn’t limited to the capitals.
What do these ultra-low vacancy rates mean for different players in the market?
While vacancy rates are expected to remain tight through 2025, there are early signs of change. Increased building approvals and government incentives for developers are forecast to add thousands of new homes to the market by late 2025 and 2026. Analysts predict that vacancy rates could edge closer to 1.5–2% in some cities by year’s end if construction timelines hold and migration moderates.
For property investors, keeping a close eye on monthly vacancy rate updates—and the factors influencing them—will be crucial for timing purchases and setting rental strategies. Renters, meanwhile, may find relief as supply slowly catches up, but high demand and economic uncertainty could keep conditions competitive for some time yet.