Some 70 firefighters battled the blaze at its peak but were unable to save the sprawling multi-storey building. However the main meeting house was saved.
The marae was built by hand from scrap and recycled materials in the 1970s. Founded by playwright Bruce Stewart, it became a place for homeless and unemployed youth to find a place to belong. It has since hosted thousands of visitors every year.
One anonymous donor to the Givealittle page said he would never forget yesterday's incident: "There is no amount of money and I don't have the words. Your whare, our whare helped me to be Māori. Without your koro's dream, I wouldn't be the man I am today. I owe a debt I can never repay."
Money raised will go to the Tapu Te Ranga Charitable Trust to help with the rebuild, according to the Give a Little page.