Why Build-to-Rent Won't Fix Australia's Rental Crisis

Build-to-rent is growing but new data shows it will be less than 1% of rental supply in Sydney and Melbourne well into 2028.

The Numbers Behind the Narrative

Build-to-rent (BTR) has become the go-to policy response to Australia's rental housing shortage. Governments at all levels have invested political capital in positioning large-scale institutional rental housing as the future of supply — purpose-built, professionally managed, held in single ownership rather than sold off to individual buyers.

But Property Update reports that when you examine the actual projections, the contribution of BTR to Australia's rental supply is remarkably small — and likely to remain that way for years to come.

According to data from Charter Keck Cramer, drawing on Australian Bureau of Statistics figures and reported by Ray White, BTR is expected to make up just 0.58% of Melbourne's total rental stock in 2025, and only 0.13% of Sydney's. Looking ahead to 2028, those figures barely shift — Melbourne is forecast to hold at 0.58%, while Sydney's BTR share is actually projected to fall to just 0.07%.

The scale of Australia's rental market puts these percentages in concrete terms. Melbourne is projected to have around 583,258 rented dwellings in 2025, rising to approximately 621,646 by 2028. Sydney's rental market is projected at 694,332 dwellings in 2025, growing to 727,698 by 2028. Against those totals, the entire BTR pipeline — however active it may appear in media coverage and ministerial announcements — represents a fraction of a fraction of total supply.

Why BTR Takes Years to Deliver

Part of what makes build-to-rent a structurally slow solution is the nature of how institutional development works. Unlike a private investor who can purchase an existing property and have it tenanted within weeks, a BTR developer must work through land acquisition, planning approvals, project financing, detailed design, construction, and then a stabilisation period before the development generates meaningful rental income.

Even in an optimistic scenario — where all three levels of government fast-tracked planning approvals tomorrow — there would still be a multi-year lag before meaningful numbers of BTR units reached the market. Property Update describes BTR as "a long-term supplement" to the rental market, not a quick fix. And that distinction matters enormously when renters need relief now, not in a decade.

This timing gap also matters for property investors trying to read supply dynamics. If government policy is increasingly oriented around BTR as the primary solution to the rental shortage, but BTR cannot materially affect supply for many years, both renters and investors face a prolonged period of structural undersupply. Planning for that environment — not the one that will eventually exist — is what sensible decision-making requires right now.

Private Investors Are Still Carrying the Load

The fact that consistently gets lost in the political debate is that Australia's rental market is overwhelmingly supplied by private investors. These are individuals and families who buy properties, service mortgages, manage tenants, deal with maintenance costs, and absorb the risk of vacancy — all in exchange for rental income and, over time, capital growth.

According to Property Update, drawing on Ray White data, private landlords have been responsible for the bulk of rental supply growth over the past 25 years. Critically, they can also respond to market conditions far faster than institutional BTR operators — adjusting their portfolios based on yield, tax treatment, and local demand signals.

The challenge is that the policy environment for private property investors is becoming more complex at precisely the moment when rental supply is most needed. As Property Update notes, governments are simultaneously increasing land taxes, tightening tenancy regulations, creating uncertainty around capital gains tax treatment, and progressing legislation that would restrict negative gearing to new builds only. In short: expressing concern about rental supply while reducing the financial incentive for the people who currently supply most of it.

That is a structural contradiction. As Property Update puts it directly: "If investors exit, rental supply shrinks immediately." Unlike BTR, which requires years to deliver, private investors can exit the market quickly — and take rental properties with them.

What This Means for Investors and Buyers

For existing property investors, this environment calls for a careful review of your position. If the policy direction continues to favour new construction — through negative gearing concessions that apply only to new builds, or through institutional BTR incentives — the relative returns on existing investment property will face more headwinds than new property. That is not necessarily a reason to sell, but it is a reason to make sure your loan structure and portfolio strategy are still fit for purpose.

If you are looking at acquiring an investment property, the numbers need careful modelling before you commit. Use a [borrowing power calculator](/calculators/borrowing-power) to understand your current capacity, and factor in the potential impact of proposed negative gearing changes on your after-tax returns. Reviewing [investor home loan rates](/home-loans/investor) is also worthwhile — a better rate can improve cash flow materially while legislative uncertainty plays out.

For renters weighing up whether to buy, the dynamic is nuanced. A tightening rental market may accelerate the case for ownership, but saving a deposit while rents rise is harder. Run the numbers through a [repayment calculator](/calculators/repayment) to compare ongoing mortgage costs against your current rent, and check your [first home buyer options](/home-loans/first-home-buyer) to see what government assistance might be available to you.

Build-to-rent will, over time, become a more meaningful part of Australia's housing mix. But based on the projections available today, private investors will remain the dominant source of rental supply for at least the next decade — and policies that undermine that supply risk making the rental crisis worse long before a BTR-led improvement arrives.

[Read the full analysis at Property Update](https://propertyupdate.com.au/build-to-rent-has-a-role-to-play-but-it-wont-solve-australias-rental-crisis/)