Question: how much does it cost to build a small treehouse?
Answer: Depending on what you want, tree houses cost between $9,000 and over $250,000. The average basic kids treehouse/platform costs between $8,000 and $15,000. Higher end residential tree houses typically cost between $25,000 and $60,000. Tree Houses that you can live typically cost between $75,000 and $500,000.