Land does the work
A house is two things: a building and the land under it. The building wears out. The land doesn't, and in a well-located suburb it's the part that tends to rise in value over time.
An established house in an established suburb usually has a high share of its price in land. A new house on a small estate lot, or an apartment, usually has a high share in the building. If most of what you paid for is depreciating, the land has to work harder to carry the whole thing.
That's why we look at land size, land share and what could be done with the lot, not just bedrooms and finishes.
Scarcity
Nobody is making more established streets. A suburb that was built out decades ago has a fixed number of houses near its station, schools and shops. Demand for those streets can grow; supply mostly can't.
New estates are the opposite. The developer's job is to keep releasing lots until the estate is finished, often over many years. While that's happening, there's always fresh stock competing with yours.
Who buys it from you
Every purchase is also a future sale. The question is who will want this house in ten years, and how many of them there will be.
A freestanding established house appeals to owner-occupiers (usually the largest and deepest pool of buyers) and to investors. An off-the-plan apartment or a house in an estate full of near-identical homes appeals to a narrower group, and when you sell, you're competing with every other owner in the same block or estate, and sometimes with the builder.
The new-build premium
When you buy new, part of the price pays for things that don't stay in the property's value: the builder's and developer's margin, marketing, sales commissions and the GST that applies to new homes. It's money that has to be recovered by growth before you're ahead.
An established house has already been through that first resale. The price is set by what buyers in the area pay for similar homes, which you can check against comparable sales.
Off-the-plan valuation risk
Off-the-plan contracts are signed long before settlement, sometimes years. The lender values the property at the end, not the start. If values have softened, or the bank values a new product more cautiously, the valuation can come in below your contract price. The lender then lends on the lower figure and you fund the gap, or you can't settle.
You also buy from plans and a display. What gets built, and what's built next door, can differ from what you pictured.
Estate oversupply
New estates often attract a high share of investors at the same stage. When hundreds of similar houses are finished within a short time, many come to the rental market together. That can push rents down and vacancies up just as your loan starts. The same pattern can hit resale prices in the early years.
What new builds do offer
To be fair to the other side, new builds have real advantages:
- Depreciation. Brand-new fixtures and fittings can be depreciated. For established homes bought since 2017, previously used plant and equipment generally can't be claimed, though capital works deductions on the building may still apply depending on when it was built.
- The 2026 tax choice. For established residential property acquired after 7:30pm AEST on 12 May 2026, from 1 July 2027 rental losses can only be offset against residential property income and gains, with unused losses carried forward. From 1 July 2027 the 50% CGT discount is replaced by an inflation-indexed cost base, with a 30% minimum tax rate for resident individuals (the gain taxed as the last slice of income). Assets held before 1 July 2027 are treated as sold and reacquired on that date, keeping the old discount on the gain to that date. Qualifying new builds can choose either treatment. Properties owned before 12 May 2026 keep the old loss treatment. Your accountant can tell you how it applies to you. More in the 2026 tax changes guide.
- Lower maintenance early on, plus builder warranties and modern energy and safety standards.
- Easier to lease to tenants who want something new.
These are real. In our view they rarely outweigh weak land value, a thin resale market and the price premium. But a tax benefit is worth something, and the 2026 changes make that comparison worth doing properly rather than assuming. Your accountant is the right person to run it.
What this looks like in practice
Buying established doesn't mean buying anything old. We still apply the suburb vetoes, test the pocket and inspect the house in detail. Some established houses are poor buys: on a main road, under a flight path, or needing more work than the rent can carry. How we choose suburbs and pockets explains how we filter, and the cashflow calculator shows what a house costs to hold each week.
Sources
General information only. Nothing on this site takes into account your objectives, financial situation or needs, and it is not financial, credit, tax or legal advice. Past performance is not a reliable guide to future performance.