14 October 2026 * 10 min read

Key takeaways

• Capital growth is the increase in your property’s value over time. It’s sometimes called capital appreciation. Alongside rental income, it’s one of the two main ways property investors build wealth.
• Capital growth is largely driven by supply and demand. Factors such as population growth, low supply, and strong buyer demand can push market value up.
• You can only access your capital growth by selling, or by borrowing against your equity.
• Capital Gains Tax (CGT) rules will change on 1 July 2027 for property investors, so it’s important to understand what applies before you buy or sell.

What is capital growth?

Put simply, capital growth is your property increasing in value over time. It relies on the gap between what you paid and what the asset is worth later. Property values can rise or fall over time depending on factors including market conditions, the broader economy, interest rates, local supply and demand, infrastructure development, and the condition and location of the property itself.

You can calculate capital growth by finding the difference between the current market value of your investment and the price you initially purchased it for. For example, if you purchased a property for $300,000 ten years ago and it is now worth $500,000, you’ve achieved $200,000 in capital growth.

There are several reasons why capital growth is attractive to property investors. In a rising property market, you may see your property increase in value simply through market conditions. Investors who do their research and invest in up-and-coming suburbs or areas with consistently high demand can sometimes achieve considerable capital growth over just a few years.

Capital growth is also appealing because it can protect your wealth from inflation. That is, the money you’re making from your property increasing in value will rise with inflation.

How to calculate capital growth

Calculating capital growth is straightforward. The formula is:

Capital growth = Current market value − Original purchase price

Using the example above: $500,000 (current market value) − $300,000 (purchase price) = $200,000 in capital growth over ten years.

To express that as a percentage: divide the capital growth figure by the purchase price, then multiply by 100. In this case, $200,000 ÷ $300,000 × 100 = 66.7% total growth over the ten years, or roughly 5.2% a year when averaged out.

However, it is important to note that this is gross capital growth only and excludes costs, fees, and taxes.

What influences high capital growth in properties?

Capital growth is dictated largely by the relationship between housing supply and buyer demand. When more people want to buy in an area than there are properties available, prices tend to rise.

Market forces that drive growth:

Market increases

A property boom, whether from a supply shortage or a jump in demand, is one of the more straightforward ways to see capital growth. It can be worth researching areas most likely to see a boom, since capital growth is never guaranteed. You can use our Property Market Research tool to do some of the heavy lifting for you.

Population growth

More residents moving into a region increases demand for housing, which tends to drive capital growth over time.

Local development

New parks, schools, shopping centres or transport options often lift a suburb's appeal and demand, which could lift property prices. Proximity to transport links and employment hubs tends to increase desirability generally.

Interest rates

Lower borrowing costs increase buyer purchasing power, which supports property values, while interest rates rising can cool demand and affordability.

Supply constraints

Limited new construction intensifies competition for existing housing stock, often supporting stronger price growth.

Factors that can influence capture growth:

Home renovations

While this requires a little more work, home renovations (done well and within budget) could be another way to achieve capital growth on your property. Whether it’s a quick paint job or more significant alterations such as an extension or bathroom upgrades, renovations have the potential to increase the value of your property. It’s important to be savvy with your home improvements, however, and not overcapitalise. That is, be mindful not to put more money into your home reno than you will get back in value.

Buying under market value

Purchasing below what comparable sales data suggests a property is worth can mean immediate capital growth, though this is harder to pull off in a rising market.

Location

A highly sought-after location is a starting point for high capital growth potential. There's a reason for the popular saying, “buy the worst house on the best street!”. Just be sure you research the property carefully first.

Scarcity factor

A lack of supply makes an asset more sought-after, so properties in high-demand areas, like those near a CBD, tend to perform well.

Renovation potential

Properties with scope for smaller upgrades, like kitchens and bathrooms, that add real value.

High land-to-asset ratio

Properties with a higher proportion of land relative to the building may have greater potential for capital growth, since land typically appreciates faster than the structure on it, provided it's in a sought-after location.

Development potential

Check zoning and density rules to see whether an asset could be developed further down the track; properties with this potential often see capital growth. Researching growth corridors, which are areas with population growth, infrastructure investment and constrained supply, can help you identify investment opportunities before prices move.

Read more: what to look for in an investment property

How to access capital growth

There are two ways you can access your capital growth: by selling your property or borrowing against the usable equity in your property.

Equity is how much your home is currently worth minus how much you owe on your mortgage. For example, if you have a $600,000 property and a mortgage of $420,000, you have $180,000 in total equity. To calculate your usable equity, you need to take 80% of the current value of your home ($480,000), minus your mortgage ($420,000), which is $60,000.

It’s important to note that equity availability is indicative only and remains subject to lending criteria and approval.

If you sell your property, whatever the difference is between the selling price and your current mortgage is yours to keep. There could be tax implications, however, which we will cover further on.

Check out our affordability calculator to understand your borrowing capacity.

What’s the difference between capital growth and rental income investment strategies?

Both capital growth and rental income investment strategies can build wealth, but they work very differently, and the key differences are worth understanding when weighing up an investment property strategy.

Capital growth is more of a long-term investment strategy to give the property time to increase in value, rather than expecting an immediate return. Properties with high capital growth potential are often more expensive to buy, and the rental yield may not fully cover the mortgage and other costs in the meantime.

A rental income investment strategy can generate cash flow from day one, particularly if the property is positively geared, meaning the rental return exceeds the mortgage and other running costs. That extra income can go toward paying down the mortgage faster, or funding other expenses.

Deciding between the two strategies comes down to your goals, your risk tolerance, and how much your current income and cash flow can support in the meantime.

Playing the long game for capital growth

Capital growth is fundamentally a long-term investment strategy. Property markets move in cycles: periods of strong price growth, followed by flatter or softer periods, and trying to time the exact top or bottom of the market is genuinely difficult, even for experienced investors.

Capital growth generally works best when you give it time to compound. A suburb that sees steady price growth over just a few years can still deliver a significant gain, but the biggest results tend to come from holding through a full cycle rather than reacting to short-term movements.

Things to consider about capital growth

While growing your wealth without lifting a finger does sound inviting, there are a few things to be mindful of when it comes to capital growth:

• Property values don’t always continuously rise, and the market can fall for extended periods
• Past price growth in a suburb isn’t a guarantee of future performance.
• Market sentiment can drive swings in value
• Investment values can decrease, leading to capital losses
• Interest rates can affect affordability and buying power, which can flow through to property values

Approved CGT rules for investors

When you sell an investment property, you're required to pay tax on the profit. This is called capital gains tax, or CGT. It isn't a separate tax as such; it forms part of your taxable income for the year you sold the asset.

From 1 July 2027, CGT rules will change. Given how much this affects your after-tax return on capital growth, it's worth getting specific tax advice before you buy or sell.

Read more on the Australian Government budget website and the Australian Taxation Office website.

To sum up

Capital growth is proof that patience can pay off: holding the right property for long enough means it could quietly build wealth while you get on with life. However, capital growth is a slow burn and isn’t guaranteed, so understanding location, demand, and the tax rules can all go a long way.