Capital growth
Capital growth, also called capital appreciation, is the increase in a property's value over time, measured as the difference between what you paid and the current property value. While you hold the property the growth is unrealised, meaning it exists only on paper. It becomes a realised capital gain when you sell, and that is the point at which it can be taxed. Capital growth is one of the two ways property makes money for an investor, the other being rental income.
How capital growth is measured
Capital growth is simply the current or sale value of a property minus the price you paid for it, often expressed as a percentage. If you bought a property for £200,000 and it is now worth £250,000, your capital growth is £50,000, or 25%. Over several years it is more useful to look at the annualised rate, which smooths the total increase across the holding period and lets you compare one property or area with another. Remember that the figure is only an estimate until you sell, since the true value is whatever a buyer will actually pay.
What drives capital growth
Capital growth is rarely random. The largest driver is location and the balance of supply and demand, so areas with strong economic fundamentals, good transport, regeneration or infrastructure investment, and limited new supply tend to see values rise faster. Inflation lifts nominal prices over the long term, and an investor can also create growth directly by improving a property, since refurbishment can force an increase in value, as in the BRRRR method. From working with self-managing landlords across the UK, the investors who do best treat capital growth as a long-term by-product of buying well in the right area, not as something they can rely on year to year.
Capital growth versus rental yield
The income counterpart to capital growth is rental yield, the annual rental return as a percentage of the property's value. The two often pull in opposite directions: areas with the strongest capital growth, such as much of London and the south, tend to have lower yields, while higher-yielding areas in parts of the north tend to see slower growth. Income-focused investors lean toward yield for the cash flow it provides now, while those building long-term wealth lean toward growth. In practice the total return on a property is the combination of both, and most investors choose based on what they want the property to do rather than on which figure looks larger. Our guide to property investment strategies covers the income-versus-growth choice in more depth.
Is capital growth guaranteed?
No. Over the long run UK house prices have tended to rise, as the official UK House Price Index shows, but growth is neither steady nor certain, and prices have fallen in some periods, notably during the financial crisis. A growth-focused property usually costs more relative to its rent, so it produces weaker cash flow while you hold it, and if you have borrowed heavily a fall in value can leave you in negative equity. Leverage cuts both ways: a mortgage amplifies the return on your own money when prices rise, and the loss when they fall. You can track the value of your portfolio over time with August's Property Insights. Landlords using August tell us that capital growth only becomes real money on sale or refinance, so they plan around the rent in the meantime rather than the paper value.
Capital growth and tax
There is no tax on capital growth while you simply hold a property, because the gain is unrealised. Tax arises when you sell and the growth becomes a realised capital gain. For an investor, capital gains tax applies to the gain on a buy-to-let or second property, after deducting the purchase price, buying and selling costs, and improvement spending. If the property was once your main home, Private Residence Relief may reduce the gain. Capital gains tax is distinct from income tax, which is the regime that applies to profit from a property trade such as flipping rather than to a held investment.
Frequently asked questions
What is the difference between capital growth and rental yield?
Capital growth is the increase in the property's value over time, realised when you sell. Rental yield is the annual income the property produces as a percentage of its value. Growth builds long-term wealth; yield provides cash flow now. The total return combines both.
Is capital growth taxable?
Not while you hold the property, because the gain is only on paper. When you sell and realise the gain, capital gains tax usually applies to an investment property, subject to any reliefs such as Private Residence Relief if it was once your home.
What is a good rate of capital growth?
There is no fixed benchmark, because it depends on the area, the period and the property. The more useful question is whether the location has the economic and demand fundamentals that support rising values over time, since past growth does not guarantee future growth.
