Morley has been with Kensington since August 2000 and was involved in its return to the mortgage market in November 2009 before overseeing a relaunch of its specialist and niche mortgage products this summer.
Mortgage Solutions understands Morley will look to take up a similar role with another lender at the start of 2014.
Kensington Mortgages has been part of Investec since May 2007, following its acquisition by the South African bank.
A spokesperson for Kensington said: “We would like to thank Charles for all of his dedication and hard work, and wish him all the best for the future.”