Is Google's Marissa Mayer getting a coworker for a neighbor? Word on the tipline is that YouTube cofounder Steve Chen is putting together a high-tech bachelor pad:

A friend who's a contractor says Steve Chen is building a tech-heavy penthouse on the top floor of the Ritz-Carlton. Lots of video screens and stuff. That's all I know.

I'm just guessing that this isn't in the neoclassical Ritz-Carlton hotel on Nob Hill, but in the residential apartments built atop the old de Young building that's managed by Ritz-Carlton. When Chen is all moved in, I imagine mid-Market penthouse neighbors Mayer and Al Gore dropping by, the latter with a stern lecture on the importance of climate change and the former with a box of cupcakes. (Photo by Allan Ferguson)

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