Secured lending is exempt from BR and so the OR cannot insist you sell. They will only go for a forced sale if there were a reasonable amount of equity. In fact, even if you were in a rental for £3000 pcm, they wouldn't like it but couldn't make you give it up for a cheaper rental.
Julian Donnelly Spokesperson for www.Bankruptcyhelp.org.uk Don't forget the helpline on 0800 078 9367