You need to be aged 18 or over and a UK resident or have the permanent right to reside in the UK.
You have/will have less than four buy to let or consent to let properties*. This includes the property that you’re purchasing or remortgaging and excludes any residential mortgages.
You have at least 25% of the purchase price of the property as a deposit.
*Consent to let is a formal, written agreement between you and your mortgage lender, giving you permission to let out your home