The largest house to ever be built in the Hollywood Hills ... which includes a walk-in dressing room that was imported from Lake Como, Italy, as well as a terrace with a private spa.

Lake Como is special for the actor on a personal ... “I got a call from my agent who said, ‘I met this woman who is coming to your house, who you’re going to marry,'" he said.

The weather-beaten concrete shell of an old villa overlooking Lake Como in northern Italy has been transformed into a modern ...