The protesters - led by tiny house company Eco Cottages - have been travelling around the capital's streets all week and arrived at the Beehive on Thursday.
The aim is to introduce legislation to protect and promote tiny houses as an option to address the housing crisis.
Founder Colin Wightman said legislation must protect owners with low-cost building standards.
"This is not about a free ride for tiny houses - this is about having separate regulations and fees structures and land zonings that will cater and protect their future," he said.
Wightman said that would prevent excessive costs, red tape and abuses of the Building Act and Resource Management Act.
He presented a petition to MPs on Thursday afternoon, which would be introduced into the House by the National Party.
