The new addition on the north side was completed in the 1990s.

An addition to the original building was completed in late 2008.

A 2-floor addition to the existing 10 stories has recently been completed.

A large 2-story addition was completed about 1930 for use by the telephone company.

The last major addition to the school was completed in the early 1970s.

The addition was completed on 6 October 1904, at a cost of £2,000.

A large addition to the building was completed in the summer of 2009.

The most recent addition was completed in time for the 2004-2005 academic year.

Another addition to the school was completed in October 2012.

A major addition was completed in the early 1970s along the west side of the original structure.