

Rules relating to planning permission and buildings regulations vary throughout the UK; you can access further information for each country using these links:
England - http://www.planningportal.gov.uk/england/public
Scotland - http://www.scotland.gov.uk/Topics/built-environment/planning
Northern Ireland - http://www.planningportal.gov.uk/england/public
Wales - http://www.planningportal.gov.uk/wales/public