We are visiting a couple for their surprise 40th anniversary party so I cannot ask them directly. We have looked at nearby-ish hotels, probably a Premier Inn and there is one in Kingston Upon Thames which uses the NCP car park on Booth Road. As we live quite a distance away we are thinking of making a mini holiday of it and visiting The Big Smoke. 
Questions we have, is this a safe area at night? How easy can we travel into London from here on the train and anything else we should know? I thought I would ask the MN collective for their thoughts.