Despite a number of changes to the team, Kingstonian settled down nicely to their new home in the Isthmian League and were to finish third. Their results included home wins over the two teams that finished above them, Nunhead and Dulwich Hamlet. They were again less successful in the major cup competitions and suffered a heavy 11-1 defeat at Aldershot Town in the 4th Qualifying Round under conditions where a "stream meandered pleasantly along the length of the pitch". In the Amateur Cup they were again beaten 1-0 by Leyton in one of the early rounds. They did make the Semi Final of the Surrey Senior Cup but were beaten 3-2 by their tenants Casuals in what was a home game for both teams.

K's did however win two minor trophies in the Surrey Combination Cup and Surrey Charity Shield, beating Guildford City and Mitcham Wanderers respectively. Guildford City were semi professional playing in the Southern League (Eastern Division) which would often feed teams through to the football league itself. The Guildford game was particularly creditable as it came at the end of a run where Kingstonian had played seven games in ten days due to fixture congestion. Although they had fielded a reserve team on the day before the game many of the players had still played most of the games during this period.

K's went on tour for the second time since World War One with an unbeaten visit to Jersey and Guernsey. They had also played a Boxing Day friendly against a Dutch team, Wageningen, who were touring the country over Christmas. 5,000 people turned out for the match which saw K's win 2-1.

The season was very much overshadowed by the tragic death of Ernie Rassell at the age of 29 following a brain haemorrhage. He had been playing for the club only two days earlier. He was an almost ever present since 1922, playing 308 games, and had been the current captain. A fund for his widow and child was set up aiming to raise 10,000 shillings and had raised nearly 5,000 shillings in little over a month. His brother and fellow back, George, was absent from the field for a month but was to return before the end of the season and was to remain a regular up to 1933.

Kingstonian Reserves finished 6th in the Isthmian League reserve section but the third team were again to finish bottom in the Kingston & District League Premier Division with just 8 points.