Land to Asset Ratio: The Number Most Property Investors Never Check

A couple of years ago I sat down with an investor who had just bought a gorgeous, freshly renovated unit in a well-known suburb. Great street, great tenant, great photos. He was proud of it, and fair enough. Then I asked him one question: what percentage of what you paid is actually land? He had no idea. When we worked it out together, it was under 25%. That single number explained why his property had barely moved in five years while the cheaper, scruffier house two streets over had grown strongly.

That number is the land to asset ratio, and it is one of the most useful, and most overlooked, measures in Australian property investing. I get it. Nobody tells you to check it when you are scrolling listings on a Saturday morning. But it quietly shapes your long term growth, your depreciation position and your risk more than the paint colour ever will.

What Is the Land to Asset Ratio?

The land to asset ratio is the value of the land as a percentage of the total value of the property. If a house is worth $1,000,000 and the land underneath it is valued at $700,000, your land to asset ratio is 70%. The remaining 30% is the building: the bricks, the roof, the kitchen, the carpet.

The logic is fairly straightforward. Buildings age. Land does not. Every year a building gets older, it needs more maintenance and loses value in real terms, which is why the tax office lets you claim depreciation on it. Land, on the other hand, is a finite asset in a particular location, and when more people want to live in that location, land is what they end up competing for.

So when the market rises over the long run, the land component is doing most of the heavy lifting. The building is a depreciating asset sitting on top of an appreciating one.

Why the Land to Asset Ratio Drives Capital Growth

If you want the detailed version of what makes property rise, I have covered it in my guide to what actually drives capital growth in Australia. The short version is that growth comes from scarcity and demand. A high land to asset ratio is simply a way of measuring how much of your purchase price is exposed to that scarcity.

Here is a simple example. Two investors each spend $800,000. Investor A buys a house where the land makes up 75% of the value, so $600,000 of their money is in land. Investor B buys a newer apartment where the land is 20% of the value, so only $160,000 of their money is in land. Now the market grows 5% across the board. In theory, Investor A has a stronger claim to that growth because the part of their asset that tends to appreciate is much bigger.

In practice, buildings do not stay at their purchase price either. The building component of Investor B’s apartment ages and its value erodes, which can drag against the growth in the land share. That is the quiet drag many first time investors never see coming.

I have seen this play out dozens of times. An investor buys a newer property because it looks safe and comes with a lovely depreciation schedule, then wonders a decade later why the value has crawled while the older houses nearby have doubled. The depreciation was real. The growth was not.

What Is a Good Land to Asset Ratio?

There is no single magic figure, but there are rules of thumb that investors use to sort the strong from the weak. Roughly speaking:

• Above 70%: generally a strong land to asset ratio, typical of established houses on decent blocks in sought after suburbs.
• Between 50% and 70%: a middling result that can still work, particularly for townhouses, duplexes or well located older units.
• Below 50%: a weaker ratio, common with newer apartments, off the plan stock and many house and land packages in outer estates.

The numbers will shift by city. A tiny cottage in an inner suburb of Sydney or Melbourne might have a land share above 80%, because the land is extraordinarily expensive. A similar house in a regional town might sit closer to 50% simply because land costs less relative to building costs. That is why you compare like with like, and why the ratio is a tool, not a verdict.

To be honest with you, the ratio alone does not make a good investment. A 90% land share in a declining town with no jobs is still a poor purchase. What it does is tell you how much of your money is tied to the part of the asset that has the best long run track record.

How to Calculate the Land to Asset Ratio Step by Step

You do not need a finance degree for this. Here is how I approach it.

First, find the land value. Your state valuer general or land titles office publishes official land values, and tools like council rates notices usually show an unimproved land value. Some data providers also estimate the land value for a specific address.

Second, work out the current value of the whole property. This might be the contract price, a bank valuation or a comparable sales estimate. Be careful with automated estimates. I explain why in my piece on valuing a property properly.

Third, divide the land value by the total value and multiply by 100. If land is $450,000 and the total is $750,000, your land to asset ratio is 60%.

One caution: government land values are often set on a different date from the market value you are looking at, and some valuations lag the market. Use the ratio as a guide and cross check it against recent sales of similar vacant or knockdown blocks nearby. If you are weighing up a suburb, my guide on how to research a suburb for investment property walks through the broader checks that sit alongside this one.

Land to Asset Ratio vs Depreciation: The Trade Off Nobody Mentions

Here is where folks get caught off guard. Depreciation deductions are attractive. A newer building with high construction value gives you larger tax deductions each year, which can improve your cash flow. That is a real benefit, and I am not going to pretend otherwise. If you want to understand how those deductions work, I have written about property depreciation schedules in Australia.

But depreciation is a return of the building value you are losing, not free money. A property with a low land to asset ratio gives you big deductions precisely because the building is the main thing you paid for, and the main thing that is wearing out. You are effectively being compensated for owning a depreciating asset.

The better question is not which property has the biggest deduction. It is which property will leave you with the strongest net position after ten, fifteen or twenty years. For most long term investors, I would take a stronger land to asset ratio and slightly lower deductions every time. Depreciation can help your cash flow this year; land helps your wealth over decades. You can read more about the tax settings on the Australian Taxation Office website, and you should speak with your accountant about your own situation.

How the Land to Asset Ratio Changes Across Property Types

Not every property type gives you the same starting point, so it helps to think about where each one usually lands.

Established houses on their own block tend to have the highest land to asset ratio. That is a big reason houses often outperform over the long run, which I get into in my comparison of house vs unit investment property.

Apartments and units typically have a low land to asset ratio because you only own a small slice of the land, and the building takes up most of the value. There are exceptions, such as boutique blocks of a few units in tightly held suburbs, but the average high rise apartment will not give you much land exposure at all.

Townhouses and duplexes sit in the middle. Strategies that add value to land, like dual occupancy investment, can lift both your yield and your land exposure when done well.

House and land packages and off the plan purchases often have weak ratios in the first few years. You are paying a premium for a brand new building, and that premium is not land value. It tends to wash out, and that is one of the reasons I treat them with real caution.

How to Use the Land to Asset Ratio in Your Buying Decisions

A ratio is only useful if you act on it, so here is how I use it with clients.

Start by setting a minimum. For most of the portfolios we build, I want the land to asset ratio to be solidly above 60%, and often higher. If a property falls short, there needs to be a strong reason: a rare location, an unusual rental return, or a clear value add opportunity.

Then use it as a tiebreaker. When two properties look similar on yield and location, the one with the higher land to asset ratio usually wins. It is a clean, objective test that cuts through the emotional pull of a renovated kitchen.

Finally, combine it with the other fundamentals. The land to asset ratio tells you about the type of asset you are buying; it does not tell you whether the suburb has strong demand, low supply, diverse employment and good infrastructure. I walk through the full set in my article on investment grade property in Australia. An investment grade property ticks many boxes, and land is one of the biggest.

This is also where a buyers agent earns their fee. Pulling land values, comparing vacant block sales and stress testing the numbers is exactly the kind of work that time poor professionals do not have the hours for. If you are weighing up whether that support is worth it, have a look at whether a buyers agent is worth it in Australia.

Common Land to Asset Ratio Mistakes to Avoid

And that is where most people come unstuck. Here are the mistakes I see most often.

The first is treating the ratio as the only test. A great ratio in a weak market is still a weak investment. Always pair it with demand and supply data from sources such as the Australian Bureau of Statistics.

The second is confusing a renovation with land value. Spending $150,000 on a kitchen and bathrooms does not change the land. It changes the building component. That can be worthwhile for yield, but it does not improve your land to asset ratio.

The third is ignoring the block itself. Size, shape, zoning and orientation all affect how valuable the land is. A 600 square metre regular block with development potential is a very different thing from a 250 square metre sliver with a covenant on it.

The fourth is relying on a number from a website without checking it. Land value estimates can be out of date. Verify them, then verify them again.

Frequently Asked Questions

What is a good land to asset ratio for an investment property?

As a general rule, a land to asset ratio above 70% is considered strong, and anything above 60% is a reasonable starting point for long term growth. Below 50%, you are mostly paying for a building that will depreciate. The right number also depends on the city and property type, so compare against similar stock nearby.

How do I find the land value of a property in Australia?

Your state or territory valuer general publishes official land values, and council rates notices usually show an unimproved land value. Data platforms can also estimate it by address. Cross check the figure against recent sales of comparable vacant or knockdown blocks, because official values can lag the market.

Does a higher land to asset ratio always mean higher capital growth?

No. A high land to asset ratio improves your exposure to the part of the asset that has historically appreciated, but location, demand, supply and the local economy still matter. Think of it as one strong filter, not a guarantee.

Is a low land to asset ratio always a bad investment?

Not always, but it needs to be justified. Some apartments in unusual locations or with strong rental demand can still work for the right investor with the right goals. Just go in knowing that the building will age and that growth may be slower than a land rich property.

Key Takeaways: Land to Asset Ratio

• The land to asset ratio is the land value as a percentage of the total property value, and it shows how much of your purchase price sits in the part of the asset that appreciates.
• Land does not depreciate in the way buildings do, which is why a higher land to asset ratio generally supports stronger long term capital growth.
• A ratio above 70% is generally strong, 50% to 70% is middling, and below 50% needs a clear reason to justify the purchase.
• Depreciation deductions are attractive for cash flow, but they reflect the building wearing out; they should not outweigh the benefit of owning more land.
• Established houses on their own block usually carry the highest land to asset ratio, while apartments and off the plan stock tend to carry the lowest.
• The ratio is a filter, not a verdict, so combine it with demand, supply, rental data and local fundamentals before you buy.

Land to Asset Ratio: Final Thoughts

The investor I mentioned at the start did not make a terrible decision. He made an uninformed one, and that is fixable. Once he understood the land to asset ratio, he changed how he assessed every purchase after that, and his second property was a very different buy from his first.

That is the message I want you to take away. The best investment properties are usually not the prettiest ones. They are the ones where a big share of your money is sitting in scarce, well located land, in a suburb with real demand behind it. Buildings are what you live in or rent out. Land is what builds the wealth.

I have spent 13 to 15 years in this industry and been part of building a community of more than 78,000 investors, and our deals have averaged a 22.35% return against roughly 6% market growth. A lot of that comes from doing the unglamorous checks that most buyers skip, and the land to asset ratio is one of them.

If you would like help finding properties with the right fundamentals, including a strong land to asset ratio, that is exactly what our buyers agency does. Book a discovery call with Property Principles here.