The Board is considering whether the new annex should be built.
At the same time, new annexes for visitors were created on either side of the church.
The new annex also has a restaurant and a play area for young children.
The total cost of the new annex will be $368.7 million.
In 2003, a new annex was added, to accommodate grade 7 and 8 students.
The new annex was officially opened on 30 October 2003.
Instead, it built a new annex next to the existing courthouse.
The building continued to be enhanced throughout the years, including a new annex which was created in 1963.
The other new annex also raises a number of questions.
Within three years, its exhibitions will be presented in a new annex, now under construction.