The parents of a three-year-old girl who died after a wall collapsed on her are campaigning to include retaining and load-bearing walls under current building regulations.
Meg Burgess suffered 'catastrophic' injuries during the tragedy, which happened near Prestatyn in 2008. It later emerged in court that the wall had not been built to the standard required.
Lindsay and Peter Burgess have won the backing of Chester MP Stephen Mosley, who will present a Ten Minute Rule Motion in the House of Commons later on the issue of wall safety.
He said Meg's case 'serves to highlight the importance of proper regulation of the domestic building trade'.
Last October, 49-year-old company director George Collier, from Kinmel Bay, was jailed for two years after being convicted of manslaughter on the grounds of gross negligence following Meg's death.