On March 12, 1963, then Board Chairman John Dawson announced that plans were being prepared by architects McLean and MacPhadyen for the new $1,800,000 Merivale High School and should be handed in for tender call by April 15.

The buildings were completed by December and were to include the English, Geography, History, and commercial classes which were at the time held in the Gym, Cafeteria and basement.

Construction and development slowed down in the 1980s and 1990s but in 2002 a new shopping complex was built across the street as well as a Harvey's restaurant nearby, providing students with more places to go during lunch.

These efforts proved unsuccessful due to a large amount of community and student body support for the school.

In early December 2005 an electrical fire destroyed the interiors of the main office, student services, and guidance departments.

In 2000, a team of Merivale students won the Reach for the Top national championship;[3] in 2003, the school was named champion on the CBC television series SmartAsk.

[6] Recently, Merivale has won the Cappies Favourite Musical two years in a row with "The Drowsy Chaperone" (2011) and "Fame" (2012) under the direction of Cynthia Wood.

Including both varsity and club teams, the school has over thirty athletic groups sporting the Marauder name.

The Merivale High School boys football team won the City Championship in 2005, competing in the Tier 2 division.