Bydd y gyfnewidfa fysiau yn cael ei rhedeg gan Trafnidiaeth Cymru a bydd ganddi faeau ar gyfer 14 o fysiau a choetsys ar ochr ogleddol gorsaf drenau Caerdydd Canolog. Mae cynllun ar y gweill hefyd i ddatblygu'r ochr ddeheuol a chreu 4 bae ychwanegol fel rhan o gomplecs gorsaf Caerdydd Canolog.
The bus interchange, to be operated by Transport for Wales, will have bays for 14 buses and coaches on the north side of Cardiff Central railway station, and there are plans for future developments to the south, which will see the creation of an additional 4 bays within the Cardiff Central station complex.