Meaning of ‘principal council’ Section 270 of the Local Government Act 1972 (LGA 1972) defines a principal council as 'a council elected for a principal area'. Meaning of 'local authority': Halsbury’s’ Laws of England [23] notes that: ‘Some local authorities are sometimes described as principal councils. In general, 'principal council' means a council elected for a principal area; and 'principal area' means a non-metropolitan county, a district or a London borough, but, in relation to Wales, means a county or county borough.’ Combined authority A ‘combined authority’ means a ‘combined authority established under section 103 of the Local Democracy, Economic Development and Construction Act 2009 (LDEDCA