The lender is now accepting remortgage applications up to a maximum loan to value (LTV) of 60 per cent.
Borrowers require a minimum equity of £300,000 in London, £250,000 in the South East and £200,000 across the rest of the UK.
Rates are the same as capital repayment, staring from 1.29 per cent.
Repayment will be restricted to the sale of the main residence only, with part interest-only and part capital repayment allowed following the same criteria.