Billionaire Peter Sperling, who is the Senior Vice President/Director of Apollo Group and a co-founder/chairman of CallWave, Inc., has heaved his San Francisco, CA mansion back onto the market. Located at 2845 Broadway, the Neoclassical style mansion boasts a French limestone exterior with 19th century Italian tiled roof. The main house boasts 17,000 square feet of living space and the guest house boasts 6,000 square feet of living space. A garden separates the two of them. The mansion first came onto the market back in 2006 with a hefty $65,000,000 asking price. It was last on the market a few months ago with an asking price of $47,000,000. It is now listed at $38,500,000. The home is 70% completed.