Does the Registered Office address need to be in the United Kingdom? And can the address be a residential address?

Does the Registered Office address need to be in the United Kingdom? And can the address be a residential address?

It is necessary for the registered office to be in either England, Wales or Scotland. Further, the registered office address should be a physical address and should not be a P.O. Box. However, if the P.O Box address is that of a postal box in the building that you trade from or reside in, it will be accepted.