If you no longer require a domain name registration and choose to transfer ownership of a domain name to a different party then you will need to complete a Registrant Transfer. The process for this depends on the type of domain name.
To change the owner send us a letter, ideally on letter-headed paper, with the following details:
Once we have the transfer request and we are happy that all is in order, we will process the change of ownership.
Please note that change of ownership requests can only come from the registered owner of the domain name. We cannot accept any request from any new owner until the above process has been completed.
For UK names you should follow the above process so that we are aware of the change of ownership, however we cannot change the registered owner of uk name. This must be done by following Nominet's transfer process. http://www.nic.uk/registrants/maintain/transfer/