From M25 turn off at Junction 7 and head north on the A23 through Croydon, Streatham and then onto the A3 into Southwark. Follow directions given opposite to the office..             By Rail to London Bridge Station. Then head onto Borough High Street turning right onto Union Street. It's 15 minutes walk from London Bridge.             Gatwick Airport The airport is a 30 minute train trip to London Bridge. Then follow directions given opposite.