The lender is to launch and price a residential mortgage-backed securities deal through its Arkle master trust programme at the end of next week.
Although Lloyds group has yet to officially price the deal, Fitch Ratings has put out a report valuing the transaction at £3.4bn.
The bank has already launched two securitisations over the last year through its Permanent programme, with the deals backed by HBOS-originated mortgages.
The first deal of £4bn was issued last September, with a second issuance in January worth £2.5bn.
But this latest securitisation from Lloyds group represents the first issuance backed by mortgages from C&G and Lloyds TSB rather than HBOS since May 2007.
It is made up of seven tranches, although only four are publicly offered.
The pool of loans backing the deal is made up of 315,535 mortgage accounts with a balance of £31.27bn and an average LTV of 65%.
As well as the earlier issuance from Lloyds group in January, this year has seen a £1.4bn RMBS deal from Santander’s Alliance & Leicester and a £2.5bn securitisation from The Co-operative Bank.