| Existing area | Permissible enlargement |
|---|
|
| 1. Greater London | Any area comprising Greater London. |
| 2. Any area in Greater London and not in, or partly in, the City of London. | (i) Any area in Greater London and not in, or partly in, the City of London; (ii) the area of Greater London exclusive of the City of London; (iii) any area comprising the area of Greater London, exclusive of the City of London; (iv) any area partly in Greater London and partly in any adjacent parish or parishes (civil or ecclesiastical), and not partly in the City of London. |
| 3. A district | Any area comprising the district |
| 4. Any area in a district | (i) Any area in the district; (ii) the district; (iii) any area comprising the district; (iv) any area partly in the district and partly in any adjacent district. |
| 5. A parish (civil or ecclesiastical), or two or more parishes, or an area in a parish, or partly in each of two or more parishes. | Any area not extending beyond the parish or parishes comprising or adjacent to the area in column 1. |
| 6. In Wales, a community, or two or more communities, or an area in a community, or partly in each of two or more communities. | Any area not extending beyond the community or communities comprising or adjacent to the area in column 1. |
