Used as a place of work by no more than one person but members of the public might attend to seek or receive goods or services from the person working there.
Yn cael ei ddefnyddio fel gweithle gan dim mwy nag un person ond gallai aelodau o’r cyhoedd ddod i’r annedd er mwyn ceisio neu dderbyn nwyddau neu wasanaethau gan y person sy’n gweithio yno.