[2] The new club joined the Spartan League in 1919, which the Generals had been members of prior to World War I.

The following season saw them reach the final of the FA Amateur Cup, losing 1–0 to Leytonstone at Wembley Stadium.

They went on to win the Premier Division in 1992–93,[7] but were denied promotion to the Football Conference due to their ground failing to meet the necessary criteria.

[2] The club were subsequently relegated back to Division One at the end of the 1994–95 season, although they did reach the FA Cup first round, losing 1–0 to Bashley.

They reached the play-offs again the following season with a fourth-place finish, and after beating Burnham 1–0 in the semi-finals, they defeated Slough Town 4–0 in the final to earn promotion back to the Premier Division.

The club went on to qualify for the Premier Division promotion play-offs in 2011–12, losing 3–2 to AFC Totton in the semi-finals.

The following season resulted in another play-off qualification, this time losing 2–0 to Hemel Hempstead Town in the semi-finals.

A third successive play-off campaign was secured when they finished as Premier Division runners-up in 2013–14, but after beating Stourbridge 2–1 in the semi-finals, they lost 3–1 to St Albans City in the final.

At the end of the 2017–18 season Chesham were placed in the Premier Division South due to league reorganisation.