Additions and renovation included the 1924 expansion by School District architect Floyd Naramore, a 1930 annex, a 1954 addition by architects Naramore Bains Brady Johansen, by Theo Damn in 1958, and major interior renovations in 1972.

The addition was arranged to provide a new entrance to the school surrounded by a new gymnasium, theater, and Commons spaces.

The 2006 Senior Varsity Baseball Team was Metro League Champions[citation needed]Most recently the Wildcats had their 2022 Varsity Baseball team crowned Metro League Champion, but they lost out in the semi-finals to Mercer Island.

The 2007-08 Men's basketball team made it to the State championship playoffs for the first time in 38 years, losing the 1st round to Sqalicum.

Again the Wildcats were the champions of the 2008-09 metro sound football season with a record of 9-2, the team made it to the second round of the state playoffs beating Enumclaw and then losing to Ferndale.