Take first CCLS driveway through to the back of the big parking lot (see red arrow).
There you will find a large dumpster with tan doors.
To the right of the dumpster, a big gate will be open:
go through the big gate.
Inside the cyclone fence, you will find yourself in
a narrow basketball court that is used at night as a second parking lot.
Parking is free and spaces are clearly marked with diagonal lines.
At the back of this mini-parking lot, you will find a small gate leading directly
to Room 7.