Cabot Square Capital, the UK private equity and principal finance specialists, has turned an impressive profit on its investment in Platform Home Loans after selling it to Britannia Building Society for £600m (€943.1m).

The purchase of Platform, a UK specialist mortgage lender which provides loans for individuals that fall outside mainstream lenders' criteria, from US-based First Union two years ago is understood to have cost £330m, including Platform's mortgage book. This included an £8m equity stake by Cabot Square which has realised £55m.