A former Apple executive is selling his incredible $35 million California smart home

Jim Bartsch

A third floor observatory is accessible from the master bedroom.

He started designing the contemporary home with a bevy of automated features in 2005, according to The Wall Street Journal.

But by the time it was completed - just a few weeks ago - he no longer needed the 10,000-square-foot mansion, as his kids are all grown up.

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Located in Santa Barbara, California, the home is listed for $35 million, but Barnick told the Journal he only spent $30 million on it. Suzanne Perkins of Suzanne Perkins Realty has the listing.

Though he didn't live in the home, Barnick definitely made use of it. The design process taught him so much about home automation that he went on to found Quantum Integration, a company that installs smart home systems.

Keep scrolling for an inside-out tour.