Sole trader. Trading as domain name

[22]

Just wondering if there's any problem setting up an account with me trading as a domain name.

The domain is the activity, so if it was roofbuilding it'd be "Mr 22 trading as roofbuilding.co.uk"

Clearly I wouldn't be the only roof builder, but with the domain as the trading name I don't know if I'd come up against any resistance or legal problems. Only a hobby, but be good to have a bank account in the name and save thinking up a company name.