A registered office address is a legal requirement of all limited companies and Limited Liability Partnerships (LLPs) incorporated in the UK. Its purpose is to provide Companies House, HMRC and other relevant government bodies with an official address for delivering statutory mail and legal notices. It must be a full, physical postal address in the same part of the UK where your company is registered, i.e. England and Wales, Scotland or Northern Ireland. Both residential and non-residential addresses are permitted but many people prefer to keep their home details private.