If your home has gone up in value, you may be able to get a better mortgage rate without changing anything else, simply because you now own more of it. This guide explains how a higher home value lowers your loan-to-value and your rate, and how to make the most of it when you remortgage.
What loan-to-value is
Loan-to-value, or LTV, is the size of your mortgage as a percentage of your home's value. If you owe £150,000 on a home worth £200,000, your LTV is 75%. LTV matters because lenders price their deals in bands, offering lower rates at lower LTVs, since a lower LTV means more equity and less risk for them, as our guide to deposits and loan-to-value explains.
How a higher value lowers your LTV
When your home rises in value, your mortgage stays the same but the property is worth more, so your LTV falls. For example, if that £150,000 mortgage is on a home that has risen from £200,000 to £250,000, your LTV drops from 75% to 60%. You now own a larger share of a more valuable home, which can move you into a better rate band without paying anything extra.
LTV bands and rates
Lenders typically offer their best rates at lower LTVs, in bands such as 90%, 85%, 80%, 75% and 60%. Each step down usually brings a lower rate. So crossing from one band into a lower one, whether through a rising value or paying down the mortgage, can reduce the rate you are offered when you remortgage. Even a modest fall in LTV can make a difference if it takes you across a band threshold.
Paying down the mortgage also helps
A higher home value is not the only way to lower your LTV; paying down your mortgage does the same, by reducing what you owe against the property's value. Overpayments, where your deal allows, can therefore help you reach a better LTV band sooner, as our guide to remortgaging versus overpaying explains. Both a rising value and a falling balance work in your favour at remortgage time.
How a remortgage captures the benefit
To benefit from a lower LTV, you generally need to remortgage, since your current deal's rate was set at your original LTV. When you remortgage, the new lender values your home and applies the rate for your current LTV band, capturing any improvement. So a rise in value only translates into a better rate when you switch deals and the new, lower LTV is recognised, as our guide to remortgaging explained covers.
Getting your home valued
When you remortgage, the lender arranges a valuation to confirm your home's current worth, which determines your LTV. If you believe your home has risen in value, perhaps through local price growth or improvements you have made, a remortgage is the moment that value is recognised. It is worth being aware of roughly what your home is worth, so you can judge whether a remortgage might move you into a better band.
Improvements and rising value
Improvements you have made, as well as general market growth, can increase your home's value and so lower your LTV, as our guide to remortgaging for home improvements notes. If you have extended or modernised your home, its higher value may help you to a better rate at your next remortgage. So the benefit of improvements can be twofold: a nicer home and, potentially, a lower LTV band.
An example of crossing a band
Suppose you owe £160,000 on a home that was worth £200,000, an 80% LTV. If the home rises to £213,000, your LTV falls to 75%, crossing into a better band. At remortgage, you could access the rates offered at 75% rather than 80%, which are usually lower. This shows how even a modest rise in value can move you into a cheaper rate band without you paying anything extra.
How much difference a band makes
Each step down in LTV band typically reduces the rate by a fraction of a percent, which on a large mortgage over several years can add up to a meaningful saving. The biggest improvements often come at the lower bands, such as moving below 60% LTV. So crossing a band threshold, whether through a rising value or a falling balance, can be well worth capturing at your next remortgage.
Knowing your home's value
To judge whether you might have crossed into a better band, it helps to have a sense of your home's current value, from local sales, online estimates, or an agent's view. These are only guides, and the lender's valuation at remortgage is what counts, but they help you decide whether remortgaging now might unlock a better rate. Keeping a rough eye on your home's value is useful around remortgage time.
When a value rise is not enough
Sometimes a rise in value is not quite enough to cross a band, or wider rate rises offset the benefit of a lower LTV. A lower LTV helps, but it interacts with the overall rate environment, so it does not guarantee a lower rate than before. Still, all else being equal, a lower LTV gives you access to better deals than you would otherwise get, which is worth capturing.
Combining with overpayments
You can reach a better LTV band faster by combining a rising value with overpayments, which reduce your balance, as our guide to remortgaging versus overpaying explains. If you are close to a band threshold, a modest overpayment before remortgaging might tip you into the lower band and a better rate. Used together, market growth and overpayments can noticeably improve the deals available to you.
The key takeaway is that equity, whether built by a rising market or by paying down your mortgage, is quietly valuable: it can move you into a better rate band at your next remortgage. Keeping a rough eye on your home's value and your balance, and remortgaging when you have crossed a threshold, lets you turn that equity into a lower rate.
Make equity work for you
The practical message is to make your growing equity work for you. As you pay down your mortgage and as your home's value changes, your LTV shifts, and remortgaging at the right moment lets you capture a better rate band. Keeping a rough sense of your home's worth and your balance, and reviewing your mortgage when you may have crossed a threshold, turns equity you cannot see into a tangible saving on your rate.
Seen this way, a rising home value or a shrinking balance is not just a number on paper but a lever you can pull, at your next remortgage, to lower the rate you pay on the years of mortgage still ahead.
In short
Your loan-to-value is your mortgage as a percentage of your home's value, and lenders offer better rates at lower LTVs. If your home rises in value, your LTV falls even though your mortgage is unchanged, which can move you into a better rate band. Paying down the mortgage does the same. To capture the benefit you remortgage, when the lender's valuation recognises your home's current, higher value.
Where to get help and next steps
Read our guides to how remortgaging works, remortgaging versus overpaying, and remortgaging for home improvements. This is general information, not mortgage or financial advice.