LTV stands for Loan to Value. It's the size of your mortgage as a percent of the total property value.
Say you wanted to buy a home for £100,000 and you had £15,000 as a deposit. You would need a mortgage of £85,000, which is an 85% of the purchase price. Your LTV would be 85%.
A lower LTV means lower interest rates. That’s because a bigger deposit means less risk for lenders.
You can find our interest rates here.