Most investors compare two properties on the sticker price, see the same number, and assume the decision comes down to taste. That is the wrong number to anchor on.

The figure that actually decides your outcome is the after-tax cost to hold the property each week, not the price to buy it. And on that measure, the choice that looks more expensive up front, a brand-new build, can cost roughly half as much per week to hold as an established home at the same price.

This guide breaks down why, using a worked example, and explains what the negative gearing changes announced in the May 2026 Federal Budget mean for the decision.

New build vs established property: the short answer

At the same price, the two can look similar on entry cost, but they are not identical. How you structure the purchase changes the stamp duty, and a house and land build can be cheaper to get into for that reason. The bigger and more durable difference shows up in the holding cost, driven by depreciation and how the loan is drawn down.

On an illustrative $750,000 purchase in Victoria, with a loan at 6.25% interest only and an investor earning around $150,000:

Those numbers are illustrative only and depend on your circumstances. The mechanism behind them is what matters, and it applies well beyond this one example. Here is how it works, layer by layer.

Why the sticker price misleads investors

The sticker price is a single moment. Property ownership is a multi-year cashflow. Judging the two by the same number is like comparing two cars on the showroom price and ignoring fuel economy.

A clearer way to compare is what we call the Three-Layer Cost Test. You assess any investment property on three separate layers, not one:

Cost to get in. The cash required to settle.

Transition cost. What you pay during the build or settlement period before the property is fully earning.

Stabilised after-tax cost. What it actually costs to hold each year once a tenant is in and tax is accounted for.

Most comparisons never get past the sticker price. The real differences sit in how you structure the entry, and above all in what the property costs to hold.

Layer 1: What it costs to get in

Deposit and legals are similar either way. Stamp duty is where new and established part ways, and it comes down to how the purchase is structured.

Buy an established property and you pay duty on the full purchase price. Buy house and land through a two-part contract, one contract for the land and a separate contract to build, and in most states duty is generally assessed on the land value only. The construction is a building contract, not a property transfer, so it is generally not dutiable. Because the land is only part of the total, the saving can be significant.

On the illustrative $750,000 Victorian purchase:

On this example the house and land buyer is roughly $24,000 better off before settlement, because duty is charged on the land rather than the full package. That saving is real, but it is also state-specific and depends on the land value and eligibility, so confirm the treatment for your purchase with a conveyancer and the relevant state revenue office. It is also different from the temporary off-the-plan concession for apartments and townhouses, which is a separate rule. This saving offsets much of the new build’s one genuine cost, the build period, which is Layer 2.

Layer 2: The transition period (build vs immediate rent)

This is the one real cost penalty of a new build, and it is temporary. An established property earns rent from settlement day. A house and land build does not earn rent during construction, which typically runs around nine months.

That sounds like a clear win for established property, and in the short term it is. But two things narrow the gap.

First, a construction loan draws down in stages as the build progresses. You do not borrow the full amount on day one, so your average loan balance during the build sits well below the full loan. In the worked example the average balance is around 57% of the loan, which produces a meaningful interest saving during construction.

Second, during the build there is no property management, no maintenance and no land tax, because there is no tenanted asset yet.

Net position: across the nine-month build, the established property earns roughly $21,000 in rent that the new build does not. But the established property is also carrying full holding costs over that period. On a net-of-costs basis, the established property’s transition-period advantage narrows to roughly $8,000 to $10,000, not the full rent figure. That is the genuine cost of the build period, and it is the new build’s only structural disadvantage.

Layer 3: The stabilised after-tax holding cost

This is where the comparison reverses. Once both properties are tenanted, the new build is materially cheaper to hold, because a new building generates a large non-cash depreciation deduction that an older property cannot.

Depreciation lets you claim the declining value of the building and its fittings against your taxable income. On a new build this can be worth around $16,000 in the first year. On an established home it is usually minimal or nil, depending on the age of the asset and any recent works.

Here is the stabilised annual picture for both, on the same assumptions:

The before-tax shortfall is almost identical. The after-tax outcome is more than double on the established property. That difference is depreciation doing its work.

Putting all three layers together over the first 24 months:

Year one still favours established property on the holding cost, because the new build carries the build period. But the stamp duty saving on a two-part contract offsets much of that, so the real year-one gap is narrower than the holding-cost line alone suggests. From year two onward, the new build’s annual holding cost is roughly $6,700 lower. The longer you hold, the more the new build pulls ahead.

Does negative gearing still apply to new builds? The 2026 changes explained

Yes. Under the reform announced in the May 2026 Federal Budget, new builds keep their negative gearing treatment, while established property bought after Budget night does not.

This is the most consequential development for the new build versus established decision in years, so it is worth stating precisely. The detail below reflects what has been announced, not personal tax advice. Confirm your own position with a qualified accountant before acting.

The change was announced on 12 May 2026 in the 2026–27 Federal Budget. It is not yet law and is intended to apply from 1 July 2027.

For established residential property purchased after 7:30pm AEST on 12 May 2026, the ability to offset rental losses against salary or other personal income is set to be removed from 1 July 2027. Losses would instead be quarantined against residential rental income or future capital gains.

Properties already held before Budget night, including those under contract awaiting settlement, are grandfathered and keep the current treatment until sold.

Eligible new builds remain exempt, with negative gearing still available against other income.

There is a market signal worth noting here too. Commonwealth Bank economists have forecast that the package will leave house prices around 3% lower than they otherwise would have been, and expect investor demand to shift away from established property toward new builds, where the tax treatment is being retained. For an investor weighing the two, the policy direction and the after-tax cost point the same way.

The distinction also matters at the level of language. “Quarantined” is not the same as “abolished.” Negative gearing is not disappearing. For established property bought after Budget night, the way losses can be applied is being narrowed. Getting that distinction right is the difference between a panicked decision and an informed one.

Is a new build always the better investment?

No. A lower holding cost is one input, not the whole decision, and there are real reasons an established property can be the better buy.

Developer premium. Some new builds carry a price premium that can offset the holding-cost advantage. The numbers only work if you buy well.

Land content. Long-term capital growth is driven largely by land. A house and land package in an outer growth corridor can have strong land content, but some new stock, particularly apartments, has very little. Established homes in established suburbs often have more.

Build and defect risk. Construction carries timeline risk and the possibility of build defects. The transition period assumes a clean nine-month build, which is not guaranteed.

Rental supply. A large new estate releasing many similar properties at once can soften rents locally for a period.

Depreciation tapers. The depreciation benefit is largest in the early years and reduces over time. It is a real advantage, not a permanent one.

The honest position is that the right answer depends on the specific property, the location fundamentals and your own circumstances. The holding-cost data tells you which path is cheaper to carry. It does not tell you which property will grow.

How to decide: the Three-Layer Cost Test

When you compare any two investment properties, do not stop at the price. Run all three layers.

Cost to get in. Often similar, but contract structure matters. A house and land two-part contract can cut the stamp duty by charging it on the land alone.

Transition cost. A genuine but temporary penalty for new builds. Weigh it against the holding-cost advantage that follows.

Stabilised after-tax cost. The number that compounds over your hold period. This is where new builds, and depreciation, do their work.

A property that looks more expensive in layer one can be the cheaper, more tax-resilient asset across layers two and three. The sticker price will not tell you that. The data will.

FAQ

Is a new build cheaper to hold than an established property? Often, yes. At the same price, a new build typically costs less to hold after tax because it generates a large depreciation deduction that an older property cannot. In the illustrative example above, the after-tax weekly cost was around $106 for the new build versus around $235 for the established property.

Do new builds still get negative gearing after the 2026 Budget? Yes. Under the reform announced on 12 May 2026, eligible new builds keep negative gearing. The change, intended to start 1 July 2027 and not yet law, limits negative gearing for established property purchased after Budget night. Confirm your position with a qualified accountant.

Do you pay stamp duty on the full price of a house and land package? Often not. When house and land is bought through a two-part contract, a separate land contract and building contract, duty is generally assessed on the land value only, because the building does not exist at the time of the land transfer. On an established property you pay duty on the full purchase price. The rules are state-specific and carry eligibility conditions, and this is different from the off-the-plan concession for apartments and townhouses, so confirm the treatment with a conveyancer and your state revenue office.

How much depreciation can you claim on a new investment property? It varies by build cost, fittings and the quantity surveyor’s schedule. In the worked example it was around $16,000 in the first year. The benefit is largest in the early years and reduces over time. A depreciation schedule from a qualified quantity surveyor confirms the figure for a specific property.

Why is there no rent during a house and land build? The property does not exist as a tenantable asset until construction finishes, which typically takes around nine months. During that period there is no rent, but also no property management, maintenance or land tax, and the construction loan draws down in stages rather than all at once.

Is established property a bad investment now? No. Established property can still be a strong investment, particularly for land content and capital growth in established suburbs. The 2026 reform changes the after-tax cost of holding established property bought after Budget night, which is one factor among several. Property selection and location fundamentals still matter most.

What is the Three-Layer Cost Test? A way to compare investment properties on three layers rather than one: the cost to get in, the transition cost during the build or settlement period, and the stabilised after-tax cost to hold. It surfaces the difference that the sticker price hides.

Can I buy interstate if I cannot inspect the property? Many investors do, using a data-led process that selects property on fundamentals such as rental demand, infrastructure pipeline, population growth and yield, with relationships with builders and managers on the ground. The key is a process that removes the guesswork, not proximity to the property.

This article is general information only and does not constitute financial, tax or legal advice. It does not take into account your personal objectives, financial situation or needs. Past performance is not a reliable indicator of future performance. Tax and duty treatment, including depreciation, negative gearing and stamp duty, depends on your circumstances and on current legislation, which can change and varies between states. Stamp duty figures are illustrative and assume a land value of approximately $350,000. The 2026 negative gearing measures referenced are announced but not yet law. Seek independent professional advice before making any investment decision.

Thinking about new versus established for your next purchase? A Property Investment Appointment is a free 90-minute strategy session where we model the numbers for your situation and show you which path fits your goals. Book your Property Investment Appointment.