So, according this blueprint, tunnels were built to the homes of “Mr. J. Nicholson,” “Mr. W. Beatty,” “Mr. K. Douglas” and “Mr. J. Caan.” We’ll go ahead and assume they're talking about Jack Nicholson, Warren Beatty, Kirk Douglas and James Caan – all of whom lived near the Playboy Mansion during the late 1970s and early 1980s. There are no dates on the architectural schematics, but the dates on the Polaroids were from 1977.
This was the only other document that referenced the tunnels.
We asked if we could see the tunnels. A staff member said, off the record, “I heard they were closed up sometime in 1989.” Hugh Hefner married Playmate Kimberley Conrad in 1989. We went back to the general manager, and he said he couldn't discuss it further.
We then asked The Mansion staff for more info about the celebrity tunnels, and we were told Mr. Hefner did not wish to comment. We reached out to reps for Nicholson, Caan, Douglas and Beatty, and they have not agreed to comment.
This is all the info we've been able to dig up. So we're asking for help. If you were at The Playboy Mansion in the 1970s or 1980s, and you (or your dad or someone you know) saw or used one of these celebrity tunnels, please email us at editors@playboy.com.