Write to Daniel Radcliffe at his production studio:
Leavesden Studios
P.O. Box 3000
Leavesden
Hertfordshire WD25 7LT
England
Write to Daniel Radcliffe at his other official fanmail address:
c/o ARG Talent
4 Great Portland Street
London WIW 8PA
England
Check fanmail.biz or the fan-run site danradcliffeonline for any changes to his contact information. See the Resources section below for a link to the websites.
Look him up on fanmail.biz for tips from his fans on the best way to write to Daniel Radcliffe and an estimate of how long you should expect to wait to get a response. You will also find instructions here for how to get an autograph and/or photograph sent to you. See the Resources section below for a link to the website.