Regional 1 South East
Regional 1 South East is a level five league in the English rugby union system. It is one of six leagues at this level. When this division began in 1987 it was known as London Division 1. The format of the league was changed at the beginning of the 2009–10 season following re-organisation by the Rugby Football Union while the name change from National League 3 to Premier was introduced for the 2017–18 season to make it more obvious that it is a regional league. London & South East Premier was the highest regional rugby union league covering London and south east England. Following the RFU Adult Competition Review the league was decreased from 14 to 12 and the name changed to Regional 1 South East. Part of the area formerly covered by London & South East Premier is now covered by a new league Regional 1 South Central.
Oundle are the current champions.
Format
The twelve teams play home and away matches from September through to March, making a total of twenty-two matches each. The results of the matches contribute points to the league as follows:- 4 points are awarded for a win
- 2 points are awarded for a draw
- 0 points are awarded for a loss, however
- 1 losing point is awarded to a team that loses a match by 7 points or fewer
- 1 additional point is awarded to a team scoring 4 tries or more in a match
Season 2025–26
Departing were Oundle, promoted to National 2 East whilst Harpenden and Bedford Athletic were relegated to Regional 2 Thames and Regional 2 Midlands East respectively.| Team | Ground | Capacity | City/Area | Previous season |
| Amersham & Chiltern | Weedon Lane | Amersham, Buckinghamshire | 10th | |
| Colchester | Raven Park | 1,200 | Colchester, Essex | Relegated from National 2 East |
| Hertford | Highfields | Ware, Hertfordshire | 6th | |
| Letchworth Garden City | Legends Lane, Baldock Road | Letchworth, Hertfordshire | Runners-up | |
| Medway | Priestfields | Rochester, Kent | Promoted from Regional 2 South East | |
| North Walsham | Norwich Road | 1,200 | Scottow, Norfolk | 5th |
| Old Northamptonians | Sir Humphrey Cripps Pavilion | Northampton, Northamptonshire | 4th | |
| Shelford | The Davey Field | 2,000 | Great Shelford, Cambridgeshire | 8th |
| Southend Saxons | Warners Park | 1,500 | Southend, Essex | 9th |
| Sudbury | Whittome Field | Great Cornard, Sudbury, Suffolk | 3rd | |
| Tring | Pendley Sports Centre | 750 | Tring, Hertfordshire | 7th |
| Westcliff | The Gables | 1,000 | Eastwood, Essex | Promoted from Regional 2 Anglia |
Season 2024–25
Departing were Colchester, promoted to National League 2 East whilst Rochford Hundred and Westcliff were relegated to Regional 2 Anglia.Joining were North Walsham, relegated from National League 2 East, together with Amersham & Chiltern and Southend Saxons, promoted from Regional 2 Thames and Regional 2 Anglia respectively.
| Team | Ground | Capacity | City/Area | Previous season |
| Amersham & Chiltern | Weedon Lane | Amersham, Buckinghamshire | Promoted from Regional 2 Thames | |
| Bedford Athletic | Putnoe Woods | 500 | Bedford, Bedfordshire | 10th |
| Harpenden | Redbourn Lane | Harpenden, Hertfordshire | 3rd | |
| Hertford | Highfields | Ware, Hertfordshire | 7th | |
| Letchworth Garden City | Legends Lane, Baldock Road | Letchworth, Hertfordshire | 4th | |
| North Walsham | Norwich Road | 1,200 | Scottow, Norfolk | Relegated from National League 2 East |
| Old Northamptonians | Sir Humphrey Cripps Pavilion | Northampton, Northamptonshire | 9th | |
| Oundle | Occupation Road | Oundle, Northamptonshire | 6th | |
| Shelford | The Davey Field | 2,000 | Great Shelford, Cambridgeshire | 5th |
| Southend Saxons | Warners Park | 1,500 | Southend, Essex | Promoted from Regional 2 Anglia |
| Sudbury | Whittome Field | Great Cornard, Sudbury, Suffolk | 2nd | |
| Tring | Pendley Sports Centre | 750 | Tring, Hertfordshire | 8th |
Season 2023–24
Departing were Westcombe Park, promoted to National League 2 East whilst Medway and Sidcup were relegated to Regional 2 South East.Joining were Rochford Hundred, relegated from National League 2 East, together with Letchworth Garden City and Old Northamptonians, promoted from Regional 2 Anglia and Regional 2 East Midlands respectively. Also coming in were Oundle on a level transfer from Regional 1 Midlands.
Participating teams and locations
| Team | Ground | Capacity | City/Area | Previous season |
| Bedford Athletic | Putnoe Woods | 500 | Bedford, Bedfordshire | 7th |
| Colchester | Raven Park | 1,200 | Colchester, Essex | 3rd |
| Harpenden | Redbourn Lane | Harpenden, Hertfordshire | 4th | |
| Hertford | Highfields | Ware, Hertfordshire | 9th | |
| Letchworth Garden City | Legends Lane, Baldock Road | Letchworth, Hertfordshire | Promoted from Regional 2 Anglia | |
| Old Northamptonians | Sir Humphrey Cripps Pavilion | Northampton, Northamptonshire | Promoted from Regional 2 East Midlands | |
| Oundle | Occupation Road | Oundle, Northamptonshire | Transferred from Regional 1 Midlands | |
| Rochford Hundred | The Rugby Park | 1,000 | Hawkwell, Rochford, Essex | Relegated from National League 2 East |
| Shelford | The Davey Field | 2,000 | Great Shelford, Cambridgeshire | 2nd |
| Sudbury | Whittome Field | Great Cornard, Sudbury, Suffolk | 8th | |
| Tring | Pendley Sports Centre | 750 | Tring, Hertfordshire | 5th |
| Westcliff | The Gables | 1,000 | Eastwood, Essex | Relegated from National League 2 East |
2022–23
Six of the twelve teams participated in the 2021–22 competition. They are joined by Shelford, Sudbury, Colchester and Harpenden, all promoted from London 1 North, together with Medway and Bedford Athletic promoted from London 1 South and Midlands 1 East respectively. Sutton & Epsom, Maidenhead, Havant, Wimbledon and Brighton were level transferred to Regional 1 South Central. Other teams leaving the division were Dorking, Sevenoaks and North Walsham who were promoted to National League 2 East. There was no relegation from the league at the end of last season.Participating teams
| Team | Ground | Capacity | City/Area | Previous season |
| Bedford Athletic | Putnoe Woods | 500 | Bedford, Bedfordshire | Promoted from Midlands 1 East |
| Colchester | Raven Park | 1,200 | Colchester, Essex | Promoted from London 1 North |
| CS Rugby 1863 | King's House Sports Ground | Chiswick, London | 14th | |
| Harpenden | Redbourn Lane | Harpenden, Hertfordshire | Promoted from London 1 North | |
| Hertford | Highfields | Ware, Hertfordshire | 4th | |
| Medway | Priestfields | Rochester, Kent | Promoted from London 1 South | |
| Shelford | The Davey Field | 2,000 | Great Shelford, Cambridgeshire | Promoted from London 1 North |
| Sidcup RFC | Crescent Farm | Sidcup, London | 9th | |
| Sudbury | Whittome Field | Great Cornard, Sudbury, Suffolk | Promoted from London 1 North | |
| Tring | Pendley Sports Centre | 750 | Tring, Hertfordshire | 10th |
| Tunbridge Wells | St Marks Recreation Ground | 3,000 | Royal Tunbridge Wells, Kent | 13th |
| Westcombe Park | Goddington Dene | 3,200 | Orpington, London | 6th |
2021–22
Nine of the fourteen teams participated in the 2019–20 competition. They are joined by Sutton & Epsom who were relegated from National League 2 South, along with three promoted sides; Havant, North Walsham and Westcombe Park. Maidenhead who played in South West Premier in 2019-20 were level transferred into London & South East Premier as the nearest club geographically to address an imbalance of teams in the league. Teams leaving the division included Rochford Hundred who were promoted into National League 2 South as champions along with Guernsey Raiders who won the virtual promotion play-off against Weston-super-Mare RFC, while teams relegated from the league included Bedford Athletic, Guildford and London Irish Wild Geese.The teams competing in 2021–22 achieved their places in the league based on performances in 2019–20, the 'previous season' column in the table below refers to that season not 2020-21.
Participating teams
| Team | Ground | Capacity | City/Area | Previous season |
| Brighton | Waterhall Playing Fields | Brighton, East Sussex | 9th | |
| CS Rugby 1863 | King's House Sports Ground | Chiswick, London | 11th | |
| Dorking | The Big Field | 1,000+ | Dorking, Surrey | 5th |
| Havant | Hook's Lane | 1,500 | Havant, Hampshire | Promoted from London 1 South |
| Hertford | Highfields | Ware, Hertfordshire | 4th | |
| Maidenhead | Braywick Park | 1,750 | Maidenhead, Berkshire | Level transfer from South West Premier |
| North Walsham | Norwich Road | 1,200 | Scottow, Norfolk | Promoted from London 1 North |
| Sevenoaks | Knole Paddock | 1,000 | Sevenoaks, Kent | 7th |
| Sidcup | Crescent Farm | Sidcup, London | 8th | |
| Sutton & Epsom | Rugby Lane | Cheam, London | Relegated from National 2 South | |
| Tring | Pendley Sports Centre | 750 | Tring, Hertfordshire | 10th |
| Tunbridge Wells | St Marks Recreation Ground | 3,000 | Royal Tunbridge Wells, Kent | 6th |
| Westcombe Park | Goddington Dene | 3,200 | Orpington, London | Promoted from London 1 South |
| Wimbledon | Beverley Meads | 1,000 | Raynes Park, London | 3rd |
2020–21
On 30 October the RFU announced that due to the coronavirus pandemic a decision had been taken to cancel Adult Competitive Leagues for the 2020/21 season meaning London & South East Premier was not contested.2019–20
Nine of the fourteen teams participated in last season's competition. They are joined by Guernsey and London Irish Wild Geese who were relegated from National League 2 South, along with three promoted sides; Brighton, Rochford Hundred and Sevenoaks.Teams leaving the division included Sutton & Epsom who were promoted into National League 2 South as champions and Westcliff who won the promotion playoff, while teams relegated from the league included Brentwood, Chingford and Shelford.
Participating teams
| Team | Ground | Capacity | City/Area | Previous season |
| Bedford Athletic | Putnoe Woods | 500 | Bedford, Bedfordshire | 6th |
| Brighton | Waterhall Playing Fields | Brighton, East Sussex | Promoted from London 1 South | |
| CS Stags 1863 | King's House Sports Ground | Chiswick, London | 10th | |
| Dorking | The Big Field | 1,000+ | Dorking, Surrey | 9th |
| Guernsey Raiders | Footes Lane | 5,000 | Saint Peter Port, Guernsey | Relegated from National 2 South |
| Guildford | Broadwater Sports Club | Farncombe, Surrey | 11th | |
| Hertford | Highfields | Ware, Hertfordshire | 5th | |
| London Irish Wild Geese | Hazelwood | 2,000 | Sunbury-on-Thames, Surrey | Relegated from National 2 South |
| Rochford Hundred | The Rugby Park | 1,000 | Hawkwell, Rochford, Essex | Promoted from London 1 North |
| Sevenoaks | Knole Paddock | 1,000 | Sevenoaks, Kent | Promoted from London 1 South |
| Sidcup | Crescent Farm | Sidcup, London | 8th | |
| Tring | Pendley Sports Centre | 750 | Tring, Hertfordshire | 4th |
| Tunbridge Wells | St Marks Recreation Ground | 3,000 | Royal Tunbridge Wells, Kent | 7th |
| Wimbledon | Beverley Meads | 1,000 | Raynes Park, London | 3rd |
2018–19
Nine of the fourteen teams participated in last season's competition. They are joined by Wimbledon who were relegated from National League 2 South, along with four promoted sides; Bedford Athletic, Brentwood, Chingford and CS Rugby 1863. Bedford Athletic had initially been promoted into Midlands Premier but were level transferred into London & South East Premier as the nearest club geographically to address an imbalance of teams in the league. Teams leaving the division included Barnes who were promoted into National League 2 South as champions along with Guernsey who won the promotion playoff, while teams relegated from the league included Southend Saxons, Towcestrians and Westcombe Park.Participating teams
| Team | Ground | Capacity | City/Area | Previous season |
| Bedford Athletic | Putnoe Woods | 500 | Bedford, Bedfordshire | Promoted from Midlands 1 East |
| Brentwood | King George's Playing Fields | 3,000 | Brentwood, Essex | Promoted from London 1 North |
| Chingford | Lea Valley Playing Fields | Chingford, London | Promoted from London 1 North | |
| CS Rugby 1863 | King's House Sports Ground | Chiswick, London | Promoted from London 1 South | |
| Dorking | The Big Field | 1,000+ | Dorking, Surrey | 9th |
| Guildford | Broadwater Sports Club | Farncombe, Surrey | 11th | |
| Hertford | Highfields | Ware, Hertfordshire | 4th | |
| Shelford | The Davey Field | 2,000 | Great Shelford, Cambridgeshire | 7th |
| Sidcup | Crescent Farm | Sidcup, London | 8th | |
| Sutton & Epsom | Rugby Lane | Cheam, London | 10th | |
| Tring | Pendley Sports Centre | 750 | Tring, Hertfordshire | 3rd |
| Tunbridge Wells | St Marks Recreation Ground | 3,000 | Royal Tunbridge Wells, Kent | 5th |
| Westcliff | The Gables | 1,000 | Eastwood, Essex | 6th |
| Wimbledon | Beverley Meads | 1,000 | Raynes Park, London | Relegated from National 2 South |
Promotion play-off
Each season, the runners-up in the London & South East Premier and South West Premier participate in a play-off for the third promotion place to National League 2 South. The team with the best playing record, in this case Westcliff, hosted the match and beat their opponents Barnstaple 44 – 5 to win promotion to National League 2 South for the first time. This was Westcliff's first appearance in the play-offs and Barnstaple's second; in 2016 Barnstaple beat Tonbridge Juddians 31 – 30 at Tonbridge. The home team have won fifteen out of nineteen play-off matches and the south-east team have won the play-off thirteen times.----
2017–18
Nine of the fourteen teams participated in last season's competition. They are joined by Barnes who were relegated from National League 2 South along with three promoted teams Sidcup, Tring and Tunbridge Wells. Tonbridge Juddians were promoted into National League 2 South as champions along with Wimbledon who won the promotion playoff. Teams relegated from the league included Amersham & Chiltern and Colchester and Chichester. To address an imbalance of teams, Towcestrians were level transferred into the league from the Midlands Premier, as they were the nearest team geographically.Participating teams
| Team | Ground | Capacity | City/Area | Previous season |
| Barnes | Barn Elms | Barnes, London | Relegated from National League 2 South | |
| Dorking | The Big Field | 1,000+ | Dorking, Surrey | 8th |
| Guernsey | Footes Lane | 5,000 | Saint Peter Port, Guernsey | 5th |
| Guildford | Broadwater Sports Club | Farncombe, Surrey | 9th | |
| Hertford | Highfields | Ware, Hertfordshire | 3rd | |
| Shelford | The Davey Field | 2,000 | Great Shelford, Cambridgeshire | 6th |
| Sidcup | Crescent Farm | Sidcup, London | Promoted from London 1 South | |
| Southend Saxons | Warners Park | 1,500 | Southend, Essex | 11th |
| Sutton & Epsom | Rugby Lane | Cheam, London | 10th | |
| Towcestrians | Greens Norton Road | Towchester, Northamptonshire | Level transfer from Midlands Premier | |
| Tring | Pendley Sports Centre | 750 | Tring, Hertfordshire | Promoted from London 1 North |
| Tunbridge Wells | St Marks Recreation Ground | 3,000 | Royal Tunbridge Wells, Kent | Promoted from London 1 South |
| Westcliff | The Gables | 1,000 | Eastwood, Southend-on-Sea, Essex | 7th |
| Westcombe Park | Goddington Dene | 3,200 | Orpington, London | 4th |
Promotion play-off
Each season, the runners-up in the London & South East Premier, and South West Premier participate in a play-off for promotion to National League 2 South. The team with the best playing record, in this case Guernsey RFC, hosted the match and beat their opponents Bournemouth 38 – 23 to win promotion.2016–17
Nine of the fourteen teams participated in last season's competition. They are joined by Dorking and Southend Saxons who were relegated from National 2 South while three promoted teams, Amersham & Chiltern, Guildford and Sutton & Epsom were promoted into the league. London Irish Wild Geese were promoted to National League 2 South as champions while Eton Manor and Gravesend were relegated to London 1 North and London 1 South respectively. Originally, Westcliff were supposed to go down as the 14th placed team, but they were granted a reprieve when East Grinstead decided to take voluntary relegation, due to the loss of a key sponsor and dropped five leagues to Sussex Spitfire 1. Finally Bracknell were level transferred back to National League 3 South West after just one season to address an imbalance in teams after having finished 11th.Current results see:-
Participating teams
| Team | Ground | Capacity | City/Area | Previous season |
| Amersham & Chiltern | Weedon Lane | Amersham, Buckinghamshire | promoted from London 1 North | |
| Chichester | Oaklands Park | Chichester, West Sussex | 10th | |
| Colchester | Mill Road Playing Fields | Colchester, Essex | 9th | |
| Dorking | The Big Field | 1,000+ | Dorking, Surrey | relegated from National League 2 South |
| Guernsey | Footes Lane | 5,000 | Saint Peter Port, Guernsey | 6th |
| Guildford | Broadwater Sports Club | Farncombe, Surrey | promoted from London 1 South | |
| Hertford | Highfields | Ware, Hertfordshire | 4th | |
| Shelford | The Davey Field | 2,000 | Great Shelford, Cambridgeshire | 7th |
| Southend Saxons | Warners Park | 1,500 | Southend, Essex | relegated from National League 2 South |
| Sutton & Epsom | Rugby Lane | Cheam, London | promoted from London 1 South | |
| Tonbridge Juddians | The Slade | 1,500 | Tonbridge, Kent | 2nd |
| Westcliff | The Gables | 1,000 | Eastwood, Southend-on-Sea, Essex | 12th |
| Westcombe Park | Goddington Dene | 3,200 | Orpington, London | 5th |
| Wimbledon | Beverley Meads | 1,000 | Raynes Park, Merton, London | 8th |
Promotion play-off
Each season, the runners-up in the National League 3 London and SE, and National League 3 South West participate in a play-off for promotion to National League 2 South. The team with the best playing record, in this case Wimbledon RFC, hosted the match and beat their opponents Dings Crusaders RFC 55 – 5 to win promotion.----
2015–16
Participating clubs
- Bracknell
- Chichester
- Colchester
- East Grinstead
- Eton Manor
- Gravesend
- Guernsey
- Hertford
- London Irish Wild Geese
- Shelford
- Tonbridge Juddians
- Westcliff
- Westcombe Park
- Wimbledon
Promotion play-off
The runners-up in the National League 3 London and SE, and National League 3 South West participate in a play-off for promotion to National League 2 South. The team with the best playing record, in this case Tonbridge Juddian, host the match and their opponents are Barnstaple. Juddians lost the match 31 – 30 to a penalty in the last minute of the match and will stay in National 3 London and SE for next season.----
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2014–15
Participating clubs
- Amersham & Chiltern
- Barnes
- Bury St Edmunds
- Chichester
- CS Rugby 1863
- East Grinstead
- Gravesend
- Guernsey
- Hertford
- London Irish Wild Geese
- Tonbridge Juddians
- Tring
- Westcliff
- Westcombe Park
Promotion play-off
The runners-up in the National League 3 London and SE, and National League 3 South West participate in a play-off for promotion to National League 2 South. The team with the best playing record, in this case Exmouth, hosts the match; their opponents were Barnes and the match was played on 25 April 2015. At the end of full-time the match score was 22 – 22, and Barnes scored the only points in extra-time, to win the match 27– 22.----
After extra time
----
2013–14
Participating clubs
- Barking '
- Barnes
- Basingstoke '
- Bury St Edmunds '
- CS Rugby 1863
- Dorking
- East Grinstead '
- Guernsey
- Hertford
- Old Elthamians
- Thurrock
- Tonbridge Juddians
- Tring
- Westcombe Park
2012–13
Participating clubs
- Barnes '
- Bishop's Stortford
- CS Rugby 1863
- Dorking
- Gravesend
- Guernsey '
- Hertford
- Old Elthamians '
- Staines
- Thurrock '
- Tonbridge Juddians
- Tring
- Westcliff
- Westcombe Park
Results
- 1 Bishop's Stortford Promoted
- 2 Dorking
- 3 Westcombe Park
- 4 Barnes
- 5 Tonbridge Juddians
- 6 Old Elthamians
- 7 CS Rugby 1863
- 8 Guernsey
- 9 Hertford
- 10 Tring
- 11 Thurrock
- 12 Gravesend Relegated
- 13 Westcliff Relegated
- 14 Staines '''Relegated'''
2011–12
Participating clubs
- Ampthill
- Bishop's Stortford
- Bracknell
- Canterbury '
- CS Rugby 1863
- Dorking
- Gravesend
- Havant
- London Irish Amateur '
- Luton
- Staines
- Tonbridge Juddian
- Tring
- Westcliff ''''''
Results
- 1 Canterbury Promoted
- 2 Tonbridge Juddian
- 3 Ampthill Transferred
- 4 Bishop's Stortford
- 5 Dorking
- 6 CS Rugby 1863
- 7 Tring
- 8 Staines
- 9 London Irish Amateur
- 10 Westcliff
- 11 Gravesend
- 12 Bracknell Relegated
- 13 Luton Relegated
- 14 Havant '''Relegated'''
2010–11
Participating clubs
- Ampthill
- Barnes '
- Basingstoke
- Bishop's Stortford
- Bracknell
- Civil Service '
- Diss
- Dorking
- Gravesend '
- Havant
- Hertford
- North Walsham
- Staines '
- Tring
2009–10
Participating clubs
First season as a national league- Basingstoke
- Bishop's Stortford
- Bracknell
- Diss
- Dorking
- Havant
- Haywards Heath
- Hertford
- Jersey
- North Walsham
- Old Albanians
- Portsmouth
- Sutton & Epson
- Tring
Original teams
When league rugby began in 1987 this division contained the following teams:- Dartfordians
- Ealing
- Esher
- Guildford & Godalming
- Ipswich
- Lewes
- Old Gaytonians
- Ruislip
- Sutton & Epsom
- Upper Clapton
- [United Services Portsmouth RFC|Portsmouth Rugby Football Club|United Services Portsmouth]
Regional 1 South East honours
In the first season of the English rugby union league pyramid, sponsored by Courage, there was four, tier five leagues. These were London Division 1, Midland Division 1, North Division 1 and South West Division 1. In 1987 the geographical area for teams in the south-east of England was known as the London and South East Division and covered the counties of Essex, Hampshire, Kent, Middlesex, Norfolk, Suffolk, Surrey and Sussex. The league was also known as London League 1 and London 1. There were eleven teams in the league and they played each team once, giving each team ten matches. This system prevailed for five seasons, and in 1992–93 the number of teams increased from eleven to thirteen. The following season the league was reorganised and the four tier five leagues became two; National 5 North and National 5 South. After three seasons, in 1996–97, a further reorganisation occurred, and there was a return to four, tier five leagues; with London Division One covering the same area as before. This system prevailed until 2009–10 when the number of teams was increased from twelve to fourteen and renamed National League Three London & South East. The league name changed once more for the 2017–18, when it was renamed to London & South East Premier.London Division One (1987–93)
The original London Division One was a tier five league with promotion up to Area League 2 South and relegation down to either London 2 North or London 2 South.| Season | No of teams | No of matches | Champions | Runners-up | Relegated teams | Reference |
| 1987–88 | 11 | 10 | Ealing | Ruislip | Esher, Upper Clapton | |
| 1988–89 | 11 | 10 | Basingstoke | Sutton & Epsom | Guildford & Godalming, Dartfordians | |
| 1989–90 | 11 | 10 | North Walsham | Ealing | No relegation | |
| 1990–91 | 11 | 10 | Sidcup | Cheshunt | US Portsmouth | |
| 1991–92 | 11 | 10 | Thurrock | Eton Manor | Cheshunt, Ruislip, Lewes | |
| 1992–93 | 13 | 12 | Tabard | Ealing | Barking, Old Colfeians, Old Mid-Whitgiftian, Old Alleynian, Dorking, Old Gaytonians, Sidcup |
London Division One
The top six teams from London Division One and the top six from South West Division One were combined to create National 5 South. London Division 1 was now the name of a tier six league and was one of two feeder leagues for National 5 South.| Season | No of teams | No of matches | Champions | Runners-up | Relegated teams | Reference |
| 1993–94 | 13 | 12 | Barking | Ealing | Thurrock, Dorking, Old Alleynian | |
| 1994–95 | 13 | 12 | Camberley | Esher | Streatham-Croydon, Eton Manor, Maidstone | |
| 1995–96 | 13 | 12 | Charlton Park | Southend | Ealing |
London Division One
For the end of the 1995–96 season National 5 South was discontinued and London Division One returned to being a tier five league. Promotion was to National 4 South, while relegation continued to London 2 North and London 2 South.| Season | No of teams | No of matches | Champions | Runners-up | Relegated teams | Reference |
| 1996–97 | 14 | 13 | Esher | Norwich | Southend, Thurrock | |
| 1997–98 | 17 | 16 | Norwich | Staines | Askeans | |
| 1998–99 | 17 | 16 | Westcombe Park | Staines | Southend, Charlton Park | |
| 1999–00 | 17 | 16 | Basingstoke | Staines | Cheshunt, Sudbury, Old Mid-Whitgiftian, Wimbledon, Ruislip, Woodford | |
| 2000–01 | 11 | 20 | Old Colfeians | Havant | Guildford & Godalming, Thurrock | |
| 2001–02 | 12 | 22 | Havant | Basingstoke | Cambridge | |
| 2002–03 | 12 | 22 | Southend | Haywards Heath | Cheshunt, Northwich, Winchester | |
| 2003–04 | 12 | 22 | Havant | Hertford | Harlow, Camberley, Staines | |
| 2004–05 | 12 | 22 | Cambridge | Worthing | Thanet Wanderers, Sutton & Epsom, London Nigerian | |
| 2005–06 | 12 | 22 | Canterbury | Richmond | Tabard, Old Colfeians | |
| 2006–07 | 12 | 22 | London Scottish | Ealing Trailfinders | Guildford, Haywards Heath, Staines | |
| 2007–08 | 12 | 22 | Richmond | Worthing | Thanet Wanderers, Basingstoke, CS Rugby 1863 | |
| 2008–09 | 12 | 22 | Shelford | Barnes | No relegation |
National League 3 London & SE
The division was renamed National League 3 London & SE following a restructuring of the national leagues which led to changes at all levels. It continued as a tier 5 league with promotion to National League 2 South and relegation to either London 1 North or London 1 South.London & South East Premier
The division was renamed London & South East Premier in order to make it more obvious that it was a regional league and the pinnacle of the London & South East region. It continued to be a tier 5 league with promotion to National League 2 South and relegation to London 1 North or London 1 South.Regional 1 South East
Following a reorganisation of the league structure by the RFU, this league is now one of six at tier 5. Promotion is to National League 2 East and relegation to either Regional 2 Anglia, Regional 2 South East or Regional 2 Thames depending on location.Promotion play-offs
Between seasons 2000–01 and 2018–19 there has been a play-off between the runners-up of London & South East Premier and South West Premier for the third and final promotion place to National League 2 South. The team with the superior league record has home advantage. At the end of the 2019–20 season the London and south-east teams have been the most successful with thirteen wins to the south-west teams six; and the home team has won promotion on fifteen occasions compared to the away teams four.Number of league titles
- Barnes
- Basingstoke
- Canterbury
- Havant
- Westcombe Park
- Barking
- Bishop's Stortford
- Bury St Edmunds
- Camberley
- Cambridge
- Charlton Park
- Colchester
- Dorking
- Ealing
- Esher
- Jersey
- London Irish Wild Geese
- London Scottish
- London Welsh
- North Walsham
- Norwich
- Old Colfeians
- Richmond
- Rochford Hundred
- Sevenoaks
- Shelford
- Sidcup
- Southend
- Sutton & Epsom
- Tabard
- Thurrock
- Tonbridge Juddians