Lenders and independent mortgage brokers will propose mortgage deals based on how much you can borrow compared to the property's current value.\r\rIt is a percentage called the 'loan-to-value' (LTV) .\r\rFor the remortgage, the lower LTV you need, the more deals might be available, providing you with an opportunity for cheaper mortgages.\r\rTo calculate your LTV, divide your outstanding mortgage amount by the property's current value and multiply the result by 100.