The implied results are now calculated using the local election results for the wards which make up each old seat. This should be more accurate than the earlier implied results which assumed each constituency was homogeneous.
North London is rather complicated. Brent loses a seat (the old Brent South) which was Labour. But the old Brent East (Lib Dem) is renamed Brent Central and includes parts of the old Brent South leaving it predicted to be a Labour seat. Changes to boundaries cause Labour to lose two more seats to the Conservatives (Finchley and Golders Green) and the Lib Dems (Hampstead and Kilburn). Over in Havering, the old Hornchurch (Con) seat disappears. But in Chelsea, the new Chelsea and Fulham seat is predicted to be Conservative. Finally the new seat of Hammersmith is counted as a Labour gain over the old Conservative seat of Hammersmith and Fulham. The net result gives the Conservatives one more seat, Labour two less, and the Lib Dems level.
Note that two seats seem not to add up to 100%. The old seat of Ealing Acton and Shepherd's Bush was divided between Hammersmith (North London) and Ealing (South London). The Hammersmith fraction (39.3%) has been put into the new Hammersmith seat. The remainder goes into the new (South London) seat of Ealing Central and Acton. The new seat of Ruislip, Northwood and Pinner is made up of parts of Harrow (the old Harrow West seat), but the larger part comes from the (South London) borough of Hillingdon. It is shown on the South London pages, so only 69.1% of Harrow West is shown on the table below.
| New seat | Primary component | Secondary component | ||
| Barking | 97.0% of Barking | 32.3% of Dagenham | ||
| Dagenham and Rainham | 67.7% of Dagenham | 47.4% of Hornchurch
3.0% of Barking |
| New seat | Primary component | Secondary component | ||
| Chipping Barnet | 96.8% of Chipping Barnet | 10.3% of Finchley and Golders Green
0.4% of Hendon | ||
| Finchley and Golders Green | 89.7% of Finchley and Golders Green | 3.8% of Hendon
3.1% of Chipping Barnet | ||
| Hendon | 95.9% of Hendon | 0.1% of Chipping Barnet |
| New seat | Primary component | Secondary component | ||
| Brent Central | 60.2% of Brent East | 59.8% of Brent South
7.1% of Brent North | ||
| Brent North | 92.9% of Brent North | 35.8% of Brent South |
| New seat | Primary component | Secondary component | ||
| Hampstead and Kilburn | 75.3% of Hampstead and Highgate | 39.8% of Brent East
4.4% of Brent South | ||
| Holborn and St Pancras | 100% of Holborn and St Pancras | 24.7% of Hampstead and Highgate |
| New seat | Primary component | Secondary component | ||
| Cities of London and Westminster | 85.4% of Cities of London and Westminster | 2.4% of Regent's Park and Kensington North | ||
| Westminster North | 68.3% of Regent's Park and Kensington North | 14.6% of Cities of London and Westminster |
| New seat | Primary component | Secondary component | ||
| Edmonton | 89.3% of Edmonton | 13.3% of Enfield North
0.5% of Enfield Southgate | ||
| Enfield North | 85.5% of Enfield North | 8.5% of Enfield Southgate
3.5% of Edmonton | ||
| Enfield Southgate | 91.1% of Enfield Southgate | 7.2% of Edmonton
1.3% of Enfield North |
| New seat | Primary component | Secondary component | ||
| Hackney North and Stoke Newington | 97.1% of Hackney North and Stoke Newington | 8.9% of Hackney South and Shoreditch | ||
| Hackney South and Shoreditch | 91.1% of Hackney South and Shoreditch | 2.9% of Hackney North and Stoke Newington |
| New seat | Primary component | Secondary component | ||
| Chelsea and Fulham | 48.8% of Hammersmith and Fulham | 37.0% of Kensington and Chelsea | ||
| Hammersmith | 51.2% of Hammersmith and Fulham | 39.3% of Ealing Acton and Shepherd's Bush |
| New seat | Primary component | Secondary component | ||
| Hornsey and Wood Green | Unchanged | |||
| Tottenham | Unchanged |
| New seat | Primary component | Secondary component | ||
| Harrow East | 82.7% of Harrow East | |||
| Harrow West | 69.1% of Harrow West | 17.3% of Harrow East |
| New seat | Primary component | Secondary component | ||
| Hornchurch and Upminster | 100% of Upminster | 33.4% of Hornchurch
3.7% of Romford | ||
| Romford | 96.3% of Romford | 19.2% of Hornchurch
0.0% of Upminster |
| New seat | Primary component | Secondary component | ||
| Islington North | Unchanged | |||
| Islington South and Finsbury | Unchanged |
| New seat | Primary component | Secondary component | ||
| Kensington | 63.0% of Kensington and Chelsea | 29.3% of Regent's Park and Kensington North |
| New seat | Primary component | Secondary component | ||
| East Ham | 99.4% of East Ham | 5.1% of Poplar and Canning Town
1.3% of West Ham | ||
| West Ham | 98.7% of West Ham | 24.9% of Poplar and Canning Town
0.6% of East Ham |
| New seat | Primary component | Secondary component | ||
| Ilford North | 98.0% of Ilford North | |||
| Ilford South | Unchanged |
| New seat | Primary component | Secondary component | ||
| Bethnal Green and Bow | 88.7% of Bethnal Green and Bow | |||
| Poplar and Limehouse | 69.9% of Poplar and Canning Town | 11.3% of Bethnal Green and Bow |
| New seat | Primary component | Secondary component | ||
| Chingford and Woodford Green | Unchanged | |||
| Leyton and Wanstead | 100% of Leyton and Wanstead | 2.0% of Ilford North | ||
| Walthamstow | Unchanged |