Pigott Construction Company at an initial cost of $1,306,521 (including 4.7 hectares of land), the school has undergone four major renovations, which occurred in 1959, 1974, 1975 and 2018 (currently underway).

Westdale makes annual contributions to the Stephen Lewis Foundation through crêpe sales and other fund raiser activities.

In 2005, Westdale students were part of the effort to keep the Victoria Cross of Frederick George Topham in Canada, as it was being auctioned off by his family.

Westdale Secondary also raises money for cancer research every year in the Terry Fox Run.

The following year (2006) Westdale submitted the Greek tragedy Antigone to the festival and won much critical acclaim, including 4 out of the 17 awards available at the regional level of the competition.

In 2009, Westdale performed a Sears Drama Festival entry named Enter Alice which was written and directed by Aaron Jan.

The collective was performed at the District, Regional and Provincial levels of the Sears Ontario Drama Festival winning awards in Stage Management, Music, Acting, Technical Theatre and Direction.

In 2012, Theatre Westdale presented a representation of Little Shop of Horrors, by Alan Menken and Howard Ashman, however the production was cut short because of the labor dispute between the Ontario Government and the Teacher's Unions.

Following the labor dispute, Westdale put on two productions in the spring of 2013 for the Sears Drama Festival, Drafts and Asylum, directed by students Greg Waters and Russel Niessen, respectively.

[4] Westdale has a wide variety of sports teams and clubs, most notably football, basketball, soccer and volleyball which are all hosted at the school.

[12] Westdale Secondary School has a DECA chapter with members ranking in the Regional, Provincial and International levels.

The Westdale DECA team often achieves top places at the regional, provincial and international level.

Westdale Secondary School students have the option to complete their Specialist High Skills Major in either the Arts & Culture, Construction, Health & Wellness and Information and Communications Technology.