It represents a substantial addition to the national debt not included in the Federal figures.

In 1993 a substantial addition to the building added additional spaces for instruction, meeting, and church administration.

In 1912, a substantial addition, including a gym and six other classrooms, was made.

A substantial addition was completed in the mid-19th century.

There is evidence that substantial additions were made in the middle of the 18th century.

A substantial addition was built upon the rear of the courthouse in 1989.

Originally designed for 1,600 students, the school received a substantial addition in 2004.

The earlier one has required a substantial addition while the second is virtually unchanged.

In 2002, substantial additions were made to both the west and east sides of the building.

At the time this was a rather substantial addition to the small leisure park.