Move to relax greywater pipe requirements in new homes welcomed by Canberra’s plumbing industry
Joe Prevedello • November 29, 2025
MEDIA RELEASE
Saturday 29 November 2025
The Master Plumbers Association ACT (MPA ACT) welcomes the ACT Government’s move to axe longstanding rules requiring new homes built in Canberra to install greywater pipe systems that most residents never activate, never use and which add thousands of dollars in extra cost to new builds, Chief Executive Officer of MPA ACT, Joe Prevedello said today.
The ACT Government has today announced it will push new reforms to make greywater pipe systems voluntary - directly reducing the cost of building a new home.
“This announcement is a win in the war against building sector red tape and a practical measure the Government has taken to reduce construction costs in a housing crisis. The move comes from listening to Canberra’s plumbing professionals who install these greywater systems and understand how complex, redundant and ineffectual they are,” Joe Prevedello said.
“Greywater pipe systems have been mandatory since the mid-2000s and add thousands of extra dollars in cost to new home builds in the ACT – the only jurisdiction to have such a requirement. Most greywater systems are never used, with only a handful of homeowners paying to activate them in the last 20 years.
“This is a good example of the sort of red tape governments should seek to remove as the rule isn’t delivering on its intentions while reducing choice for new home builders, owners and residents.
“Canberra’s plumbing industry should be commended for identifying this issue and advocating for its removal for the community’s benefit and we also hope the requirement is removed where it applies to home extensions and renovations.
“I thank Treasurer and Planning Minister Chris Steel for taking this decision that the MPA ACT has long advocated for, and hope the change can be implemented as soon as possible,” Joe Prevedello concluded.












