 Maldon Town, Windsor & Eton and Redbridge were relegated, while Hendon were initially relegated too as the worst 19th-placed club among the seventh level leagues, but were reprieved after Canvey Island resigned from the Conference.The 2005–06 season was the last of two seasons in which the Isthmian League consisted of a single Division One.Division One consisted of 23 clubs, including 17 clubs from the previous season and six new clubs