If you incorporate a business with Companies House you will need to set up a registered office. It must be anywhere in England and Wales.
This address doesn’t necessarily have to be a place where the business actually operates from but any place where you can receive your post from Companies House and HRMC and where you can receive all the correspondence from any third party.
You can use your home address as your registered office address however it is not advisable. This will not only make your personal home address public but can also impact your privacy at home.