As part of a larger restructuring of the entire English rugby union pyramid, undertaken by the RFU, the league was re-formed.
Beginning with the 2022–23 season, nine teams from Surrey and south-west London compete in the division.
Feltham joined for the first time having previously competed in Surrey Conference League 2023-2024.
With two leaving and three joining the league was made up of 10 sides for the first time having had 9 since its inaugural year.
Leaving the league were Old Hamptonians and Haslemere, both promoted to Counties 4 Surrey replaced by Croydon, relegated from Counties 4 Surrey and London French who had most recently competed in Herts & Middlesex 2 in 2021-22.