Billionaire venture capitalist Marc Andreessen is selling his home for more than $33 million

• Veteran venture capitalist Marc Andreessen and his wife, Laura, are selling their Bay Area mansion. 
• The more than 12,000-square-foot home is now on the market for over $33 million. 
• Andreessen's venture firm, Andreessen Horowitz, has invested in companies like Instacart and OpenAI.

One of Silicon Valley's best-known investors has put his Bay Area mansion up for sale.