The iRoom is in the Gates Information Sciences Building at Stanford.
Driving, parking, and public transportation directions to the Gates Building are at http://forum.stanford.edu/visitor-info/directions-to-gates.html. Metered parking on the far side of the first floor of Parking Structure 1 on Roth Way is currently the only parking readily available. Bring 6 quarters per hour. It's a 5min walk from there to the iRoom. If you can give your host at least 1 week advance notice of your visit, we can secure an "A" permit, which lets you park in any of the "A" areas on the map on the above page, or possibly the "G" permit which allows you to park in the small lot immediately adjacent to the Gates Building on North Svc. Road (see map).
Directions to the iRoom inside the Gates Building:
From the Gates lobby, take the elevator down to the basement. Take a sharp left as you exit the elevator and walk down a narrow hallway. The iRoom is in room B23, on the left-hand side past bathrooms and a drinking fountain. The label on the door says "interactive room". Knock if the door isn't open.
After 5:30PM and on weekends, use the side entrance to Gates instead (corner of Serra Mall and North/South Mall, a/k/a N/S Mall; see map) and walk down the stairs into the basement; you will end up at the same spot where you would normally exit the elevator.
If you need to call someone in the iRoom, the number is (650) 724-4673. Please only use if you need to talk to someone who is physically in that room.