London 3 South East (1987–93) Originally known as London 3 South East, this division was a tier 7 league with promotion to
London 2 South and relegation to either
Kent 1 or
Sussex 1.
London 3 South East (1993–96) At the end of the 1992–93 season, the top six teams from
London 1 and the top six from
South West 1 combined to create
National 5 South. This meant that London 3 South East dropped from a tier 7 league to a tier 8 league for the years that National 5 South was active. Promotion continued to
London 2 South, and relegation to either
Kent 1 or
Sussex 1.
London 3 South East (1996–2000) The cancellation of
National 5 South at the end of the 1995–96 season meant that London 3 South East reverted to being a tier 7 league. Promotion continued to
London 2 South and relegation to either
Kent 1 or
Sussex 1.
London 3 South East (2000–09) London 3 South East continued to be a tier 7 league with promotion up to
London 2 South. However, the introduction of
London 4 South East ahead of the 2000–01 season meant that clubs were now relegated to this new division instead of
Kent 1 or
Sussex 1.
London 2 South East (2009–21) Nationwide league restructuring by the
RFU ahead of the 2009–10 season saw London 3 South East renamed as London 2 South East. It remained at level 7 with promotion to
London 1 South (formerly London 2 South) and relegation to
London 3 South East (formerly London 4 South East). ==Promotion play-offs==