No enforcement action can be started relating to a structure built more
than one year ago. So the simplest remedy is to sack your solicitor and
forget that he wasted everybody's time asking for BR approvals. If you
are asked the same question when you come to sell the property, pass
this information on to your purchaser, and advise him to sack his
solicitor too.


Not strictly trust as I understand it.

"You can't be served with a section 36 enforcement notice more than 12
months after the date of completion of the building work, but this does not
affect a local authority's (or any other person's) right to apply to the
courts for an injunction for the same purpose" See Cottingham v Attey Bower
& Jones

However I am not aware of a case, where this has happened.

Nevertheless, as a solicitor is keen to cover their own back they will
usually insist on indemnity, even though there will never be a claim on it.