Any addition to an existing system that requires new cable from the consumer unit is a new circuit and requires building control notification and an installation certificate. By hiring an electrician who is registered as a Competent Person and Part P approved you can be certain that any new wiring will meet the latest standards and you will not have the hassle and expense of notifying the building control as this will be done for you. You will receive notification from the local authority confirming this as well as an Installation certificate Please contact us to discuss your needs and to get a quotation. Phone Brian on 07733104288 or email :brian@bslelectrical