More than 400 people in the Queenstown community marched in November to support the family.
"It was incredibly humbling to see the way people came together to show compassion and an outpouring of love for a family that they respect and we want as part of the Queenstown community," Walker said.
"The Wijerathne family are respected members of the Queenstown community and an example of how migrant workers living, working, and contributing to our communities in positive ways are so valuable to New Zealand, and especially communities like Queenstown and Te Anau."
There was still a lot to do however.
"While today's result is absolutely fantastic, the solution is only temporary and the family still need to seek residency.
"We have won a battle, but not the war and I'll continue to support them through this process and keep the pressure on the Minister."