Each new seat can be described as a combination of parts of old seats. These tables show this decomposition. The winner of the old seat at the 2019 election is shown by party colour, as is the implied winner of the new seat.
The implied results are calculated using the local election results for the wards which make up each old seat. This should give the most accurate projection, since it reflects varying political behaviour across the seat.
| Party | Old Seats | New Seats | Change | Disappear | Switch Out | Switch In | Fresh |
|---|---|---|---|---|---|---|---|
| CON | 74 | 76 | 2 | -3 | 0 | 3 | 2 |
| LAB | 8 | 5 | -3 | 0 | -3 | 0 | 0 |
| LIB | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| Brexit | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Green | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| MIN | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Total | 84 | 83 | -1 | -3 | -3 | 3 | 2 |
The table shows how the various changes affect each party in this area. The total old and new seats are shown for each party, as well as their difference ('Change'). The change in seats is also explained through the four explanations:
The old seats which are disappearing are: Faversham and Kent Mid; Meon Valley; Tunbridge Wells.
The old seats which are lost to another party are: Brighton Kemptown; Canterbury; Southampton Test.
The new seats which are gained from another party are: Brighton Kemptown and Seahaven; Canterbury and Faversham; Southampton Test.
The new seats which are freshly created are: Isle of Wight West; Weald of Kent.
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Bracknell | Unchanged | |
| Maidenhead | Unchanged | |
| Newbury | 90.8% of Newbury | |
| Reading East | 100% of Reading East | 8.3% of Reading West |
| Reading West | 91.7% of Reading West | 9.2% of Newbury |
| Slough | Unchanged | |
| Windsor | 100% of Windsor | 4.2% of Surrey Heath |
| Wokingham | Unchanged |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Aylesbury | 81.0% of Aylesbury | 19.6% of Buckingham |
| Beaconsfield | Unchanged | |
| Buckingham and Milton Keynes West | 80.4% of Buckingham | 11.7% of Milton Keynes North
8.7% of Milton Keynes South
|
| Chesham and Amersham | 100% of Chesham and Amersham | 10.9% of Aylesbury |
| Milton Keynes North East | 69.2% of Milton Keynes North | 23.3% of Milton Keynes South |
| Milton Keynes South | 68.0% of Milton Keynes South | 19.2% of Milton Keynes North |
| Wycombe | 100% of Wycombe | 8.1% of Aylesbury |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Bexhill and Battle | Unchanged | |
| Brighton Kemptown and Seahaven | 77.1% of Brighton Kemptown | 40.4% of Lewes |
| Brighton Pavilion | 90.9% of Brighton Pavilion | 22.9% of Brighton Kemptown |
| Eastbourne | Unchanged | |
| Hastings and Rye | Unchanged | |
| Hove and Regency | 100% of Hove | 9.1% of Brighton Pavilion |
| Lewes and West Wealden | 59.6% of Lewes | 48.4% of Wealden
0.0% of Bexhill and Battle
|
| Tunbridge Wells and Crowborough | 51.6% of Wealden | 48.8% of Tunbridge Wells |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Aldershot | 89.6% of Aldershot | 16.9% of Hampshire North East |
| Basingstoke | Unchanged | |
| Eastleigh | Unchanged | |
| Fareham | 100% of Fareham | 3.1% of Meon Valley |
| Gosport | Unchanged | |
| Hampshire East | 79.8% of Hampshire East | 23.1% of Meon Valley |
| Hampshire North East | 70.0% of Hampshire North East | 20.2% of Hampshire East
10.4% of Aldershot
|
| Hampshire North West | 88.3% of Hampshire North West | 13.1% of Hampshire North East |
| Havant | 79.1% of Havant | 31.8% of Meon Valley |
| Isle of Wight East | 58.8% of Isle of Wight | |
| Isle of Wight West | 41.2% of Isle of Wight | |
| New Forest East | 93.8% of New Forest East | 9.1% of Romsey and Southampton North |
| New Forest West | 100% of New Forest West | 6.2% of New Forest East |
| Portsmouth North | 84.6% of Portsmouth North | 20.9% of Havant |
| Portsmouth South | 100% of Portsmouth South | 15.4% of Portsmouth North |
| Southampton Itchen | 100% of Southampton Itchen | 12.9% of Southampton Test |
| Southampton Test | 87.1% of Southampton Test | 25.5% of Romsey and Southampton North |
| Test Valley | 65.4% of Romsey and Southampton North | 34.1% of Winchester
11.7% of Hampshire North West
|
| Winchester | 65.9% of Winchester | 42.0% of Meon Valley |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Ashford | 81.5% of Ashford | 5.0% of Folkestone and Hythe |
| Canterbury and Faversham | 62.5% of Canterbury | 30.6% of Faversham and Kent Mid
7.8% of Thanet South
5.0% of Dover
2.0% of Thanet North
|
| Chatham and Malling | 90.4% of Chatham and Aylesford | 19.0% of Tonbridge and Malling |
| Dartford | 93.8% of Dartford | |
| Dover and Deal | 95.0% of Dover | 8.1% of Thanet South |
| Folkestone and Hythe | 95.0% of Folkestone and Hythe | |
| Gillingham and Rainham | 100% of Gillingham and Rainham | 9.6% of Chatham and Aylesford |
| Gravesham | 100% of Gravesham | 6.2% of Dartford |
| Kent North Coastal | 70.5% of Thanet North | 37.5% of Canterbury |
| Maidstone | 65.1% of Maidstone and The Weald | 45.8% of Faversham and Kent Mid |
| Rochester and Strood | Unchanged | |
| Sevenoaks | 100% of Sevenoaks | 4.4% of Tonbridge and Malling |
| Sittingbourne and Sheppey | Unchanged | |
| Thanet East | 84.2% of Thanet South | 27.5% of Thanet North |
| Tonbridge | 76.6% of Tonbridge and Malling | 26.5% of Tunbridge Wells |
| Weald of Kent | 34.9% of Maidstone and The Weald | 24.7% of Tunbridge Wells
23.6% of Faversham and Kent Mid
18.5% of Ashford
|
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Abingdon and Oxford North | 89.5% of Oxford West and Abingdon | 5.4% of Wantage
3.2% of Henley
|
| Banbury | 91.6% of Banbury | |
| Oxford | 100% of Oxford East | 9.5% of Oxford West and Abingdon |
| Oxfordshire East | 96.8% of Henley | 8.4% of Banbury
0.9% of Wantage
|
| Wantage | 93.7% of Wantage | 1.0% of Oxford West and Abingdon |
| Witney | Unchanged |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Epsom and Ewell | Unchanged | |
| Esher and Walton | 93.9% of Esher and Walton | |
| Guildford | Unchanged | |
| Mole Valley | Unchanged | |
| Reigate | Unchanged | |
| Runnymede and Weybridge | 94.2% of Runnymede and Weybridge | 6.1% of Esher and Walton |
| Spelthorne | 100% of Spelthorne | 5.8% of Runnymede and Weybridge |
| Surrey East | Unchanged | |
| Surrey Heath | 95.8% of Surrey Heath | |
| Surrey South West | Unchanged | |
| Woking | Unchanged |
| New seat | Primary component | Secondary component(s) |
|---|---|---|
| Arundel and South Downs | 90.9% of Arundel and South Downs | 4.6% of Chichester
2.7% of Sussex Mid
|
| Bognor Regis and Littlehampton | 100% of Bognor Regis and Littlehampton | 8.0% of Arundel and South Downs |
| Chichester | 95.4% of Chichester | |
| Crawley | 100% of Crawley | 4.8% of Horsham |
| Horsham | 95.2% of Horsham | |
| Sussex Mid | 97.3% of Sussex Mid | |
| Worthing East and Shoreham | Unchanged | |
| Worthing West | 100% of Worthing West | 1.1% of Arundel and South Downs |