From the M4,
- Exit at junction 12 and follow the A4 towards Newbury.
- After approx. 5 miles take the A340 towards Aldermaston.
- Follow signs for Calleva Park through Aldermaston.
- After passing the AWE on your left you will reach a roundabout.
- Take the 4th exit into Calleva Park.

From the M3,
- Exit at junction 6 and on the Basingstoke ring road follow signs for the A340 towards Aldermaston.
- Stay on this road for approx. 8 miles.
- Travel through Tadley on the A340 towards Reading.
- After passing the AWE on your right, you will reach a roundabout.
- Take the 3rd exit into Calleva Park.

Calleva Park
- Turn left at the mini roundabout.
- Jupiter House is on the right after the postbox.