Calls for Healthy Homes Standards certification system

Housing advocates and residents of Wellington's "Devon Street Ditch," want an independent certification system so that landlords can't just "mark their own homework" and say that their properties meet healthy homes standards. Since July last year, it's been compulsory for all rental properties to be up to scratch with the standards, which set minimum requirements for heating, insulation, ventilation, moisture ingress and drainage. But with no qualification needed to tick off each of the standards, pretty much anyone is able to call themselves a healthy homes assessor. It's raised questions as to whether the standards are doing what they're meant to - ensure rental properties are safe, warm and dry. Bella Craig reports.